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Polar H10 Heart Rate Monitor Chest Strap - ANT + Bluetooth, Waterproof HR Sensor for Men and Women

4.2 4.2 out of 5 stars 22,312 ratings

Price: $84.55 $87.21 Free Return on some sizes and colors

Black
Brand POLAR
Material Polyester
Color Black
Compatible Devices iOS mobile devices: iPhone 5 and later, with iOS 11 or later; Android mobile devices with Bluetooth 4.0 capability and Android 5.0 or later See more
Screen Size 0.96 Inches
Product Dimensions 1.3"L x 2.6"W x 0.4"H
Item Weight 0.13 Pounds
Battery Life 400 Hours
Sensor Type Temperature
UPC 725882051352

About this item

  • 71% Polyester, 29% Spandex
  • Made in the USA or Imported
  • WORKS WITH EVERYTHING: Polar HRM works with many sports and smart watches (Polar, Garmin, Apple, Suunto, etc.), Polar Beat, fitness apps such as Strava and Nike, and ALL HRM compatible Cardio Equipment
  • SUPREME ACCURACY: Widely recognized for its top precision by many sources, Polar H10 is the most accurate heart rate sensor in Polar’s history. Polar H10 provides top quality heart rate measurement and it's the choice of many pro athletes.
  • CONNECTIVITY: Bluetooth, ANT+ and 5 kHz provide an excellent variety of connection options (e.g. with Peloton). You can use Bluetooth and ANT+ connections simultaneously as well as two Bluetooth connections simultaneously.
  • POLAR PRO CHEST STRAP: With improved electrodes, an easy-to-use buckle and silicone dots, the strap is comfortable and interference-free, and stays put when you're on the move.
  • VERSATILITY: Wear Polar HR monitor when rowing, cycling, running, training indoors or swimming. Polar H10 is fully waterproof and it has internal memory for one training session.
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From the manufacturer

classic black
H10 chest strap, ANT+ strap; ANT+ heart rate monitor, heart rate sensor, polar sensor, fitbit hrm

orange h10 heart rate monitor, heart rate monitors, heart sensors, garmin heart rate sensor, hr band

Brighten your training with a new colorful strap for your Polar H10.

Polar H10 - Dual Bluetooth/ANT+ (Latest Version)

Heart rate sensor

Polar H10 is a supremely precise heart rate sensor that comes with the Polar Pro chest strap. Providing top-quality heart rate measurement, Polar H10 is considered the most accurate heart rate sensor by many sources.

  • Connects with Bluetooth, ANT+ and 5 kHz
  • Several connections can be active simultaneously
  • Built-in memory for one training session
  • Waterproof up to 30 m
  • Software updates
  • Machine-washable textile strap

Key Features

gym band, waist strap, gym strap, activity tracker, fitness tracker, workout tracker, sports tracker

The Power of Accuracy

The most accurate heart rate sensor in Polar's history, Polar H10 is polished to the max in all aspects and gets software updates as well. It’s widely recognized for its top precision by many sources.

Polar H10 app, polar band, heart rate strap, heart rate monitor, heart rate sensor, HR sensor, watch

Connectivity: Training Devices, Apps & on Its Own

Polar H10 connects and transfers data via Bluetooth, ANT+ and 5 kHz to bring an excellent variety of connection options with compatible sports and smart watches, gym equipment and leading training apps on both iOS and Android phones.

running watch, running band, running waist band, running hrm band, running hr band, heart rate

Polar Pro Strap

Polar H10 comes with Polar Pro strap, a soft textile strap with high quality electrodes to make sure your heart rate is measured accurately and without interference. The strap is machine-washable.

More Highlights

H10 band, H10 heart rate sensor; fitness tracker; activity tracker; h10 Ant; polar h10 antl ant+

Internal Memory

When you want to focus on your workout, Polar H10 will save the session to its memory so you can access the data when you want it.

Polar ecoystem, hrm, heart rate monitor, polar hrm band, HR tracker, exercise tracker, exercise band

Polar H10 & Polar Beat app

Try Polar H10 with Polar Beat, Polar’s free fitness and training app to get real-time heart rate on the screen of your phone during your workouts and live voice guidance towards your chosen training target.

outdoor fitness tracker, marathon strap, chest strap, chest straps, fitness chest strap, workout

Battery Life

Dry and store the heart rate sensor strap and the connector separately to maximize the heart rate sensor battery life.

H10 H9 Verity
Polar H10 Polar H9 Polar Verity Sense
Customer Reviews
4.2 out of 5 stars
22,312
4.2 out of 5 stars
8,165
4.1 out of 5 stars
3,221
Price $87.21 $56.66 $84.95
Product placement Chest Chest Arm and temple
Operation time 400h (replaceable battery) 400h (replaceable battery) 30h
Rechargeable
Compatible with 3rd party apps
Built-in memory 1 training session Up to 600h HR training
ANT+ and Bluetooth Low Energy connectivity
Dual Bluetooth channels
5 kHz transmission (Gymlink)
Waterproof 30 m 30 m 50 m

Product Description

Polar H10 ANT + Bluetooth Heart Rate Sensor and Soft Strap::Set the standard for heart rate measurement with the H10 from Polar. Building upon Polar's legacy of heart rate technology, the H10 is set to be the standard for the most consistent and accurate heart rate through the utilization of advanced materials and optimized construction. Combining the latest in Bluetooth Smart technology with updated algorithms, this smart strap will provide the precision serious athletes deserve. This unit is versatile - use it with your Polar unit, your favorite smart device or exercise equipment found at your local health club to get the most out of your training. However you pair it, utilize the Smart Coaching feature which delivers motivating feedback, calculates your smart calories based on personal height, weight, age and max HR, measures your aerobic fitness and last - but not least – helps you determine whether your sweat session was a fat burning exercise or an overall improvement of your general fitness. Make every beat count with the H10 Heart Rate Sensor from Polar.Battery life: 400 hours with Bluetooth Low Energy and 5 kHz transmission active

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Customer reviews

4.2 out of 5 stars
22,312 global ratings

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Customers say

Customers find the heart rate monitor accurate and user-friendly. They appreciate that it shows their heart rate and zone during exercise in real time. The layout is clear and user-friendly. However, some customers dislike the battery life. Opinions vary on functionality, connectivity, accuracy, reliability, and app quality.

AI-generated from the text of customer reviews

396 customers mention "Heart rate monitor"313 positive83 negative

Customers find the heart rate monitor helpful for monitoring their heart rate during exercise. They say it's accurate and shows their heart rate and zone in Polar Flow real-time. The monitor takes their heart rate every second and is extremely accurate. It tracks all of their workouts, gives total miles, and provides Min/Mile Pace. The setup is pretty easy. However, some customers have reported inconsistent data.

"...Then an app called sleep2 from Nukkuaa to track sleep pretty accurately without needing the more expensive watches with more features than I need...." Read more

"...with Concept2’s app for this, called ErgData, which records your workouts on your phone and then uploads them to the Concept2 Logbook online...." Read more

"...This is a real electrophysiological reader. And: this is the most durable chest strap. I’ve tried the garmin and it only lasts 3 or 4 months...." Read more

"...has the ability to be used through third party apps to detect your heart rate variability and such...." Read more

273 customers mention "Ease of use"218 positive55 negative

Customers find the biometric monitor easy to use and setup. They mention it's user-friendly, connects easily to their Garmin watch, iPhone, and Polar apps. The overall layout is clear and user-friendly. The strap is adjustable, and the battery can be removed without special tools.

"The device is simple and inexpensive relative to other tech monitoring devices, but as accurate as it gets for a consumer device and the software..." Read more

"...no issues with the app, and I think the overall layout is clear, user-friendly, and not too bulky...." Read more

"...another one as it works very well and connects to other devices and apps easily. It is also very accurate as Polar is known for...." Read more

"...My elliptical immediately recognized the device. I also easily paired it with Polar Beats on my android smart phone and my old Garmin Forerunner..." Read more

965 customers mention "Functionality"630 positive335 negative

Customers have mixed opinions about the product's functionality. Some say it works well for running and non-water exercise, syncing seamlessly with Concept2's app and other fitness devices. Others report issues with ANT and Bluetooth connectivity randomly stopping.

"The device is simple and inexpensive relative to other tech monitoring devices, but as accurate as it gets for a consumer device and the software..." Read more

"...It also works flawlessly with Concept2’s app for this, called ErgData, which records your workouts on your phone and then uploads them to the..." Read more

"...was once I started working out I had about 20-30 minutes before it quit working. What sucks is you wouldn't know it though as it doesn't display 0...." Read more

"...But only once ever2 years. Good for the price. I can’t speak to swimming with it, but I sweat a lot, so it must be somewhat resistant...." Read more

547 customers mention "Connectivity"238 positive309 negative

Customers have mixed opinions about the biometric monitor's connectivity. Some say it pairs smoothly with their phone, treadmill, and other devices. Others report issues with keeping paired, needing to unpair and re-pair, and losing connection constantly.

"...Finally it just stopped pairing altogether. Google "H10 won't connect" and you'll find all kinds of ticked off customers...." Read more

"...I’ve also had no connectivity issues, and RARELY ever have a loss of connection or hiccup in any readings...." Read more

"4.5/5 Stars. I had some issues pairing it with my watch and phone. Wasn't able to connect to 2 devices at the same time...." Read more

"...I'm buying another one as it works very well and connects to other devices and apps easily. It is also very accurate as Polar is known for...." Read more

427 customers mention "Accuracy"298 positive129 negative

Customers have mixed opinions about the monitor's accuracy. Some find it lightweight and reliable, displaying an accurate heart rate. However, others report inconsistent data, with incorrect HR readings, inaccurate distance and pace measurements, and loss of workout data.

"...relative to other tech monitoring devices, but as accurate as it gets for a consumer device and the software makes it surprisingly valuable...." Read more

"First off it is more accurate than any green light. This is a real electrophysiological reader. And: this is the most durable chest strap...." Read more

"...The distance and pace is not accurate as a result. But I’m assuming this is my phone’s GPS which is wrong, and probably(?) not the app...." Read more

"...Very accurate when it pairs and works but the Einstein programmers at Polar really set up a convoluted pairing/connect method that requires you pair..." Read more

240 customers mention "Reliability"126 positive114 negative

Customers have mixed reviews about the biometric monitor's reliability. Some find it durable and reliable, able to withstand sweating, hot and cold temperatures. However, others report issues with the strap failing after a year or less of use.

"...This is a real electrophysiological reader. And: this is the most durable chest strap. I’ve tried the garmin and it only lasts 3 or 4 months...." Read more

"...It became a device of “nice to have but not dependable enough” i got this because of connection...." Read more

"...across the board, compatible with pretty much everything, and are durable...." Read more

"...So in my unscientific opinion, this thing is around 90-95% reliable. Which isn’t really enough for me, but I’m stuck with it so I’ll keep using it...." Read more

161 customers mention "App quality"98 positive63 negative

Customers have mixed opinions about the app. Some find it accurate and easy to use, saying it connects well with running apps like Meta Quest 3 and JRNY. They can send their data to an analysis app like EliteHRV for further analysis. Others mention issues with the app not being great, having a learning curve, and confusing.

"...as accurate as it gets for a consumer device and the software makes it surprisingly valuable...." Read more

"...When I connect to the Beat app it actually breaks the flow app. And don't you DARE try to use another wearable...." Read more

"...The polar unit also has the ability to be used through third party apps to detect your heart rate variability and such...." Read more

"...My elliptical immediately recognized the device...." Read more

259 customers mention "Battery life"67 positive192 negative

Customers have issues with the battery life of the biometric monitor. They mention it dies quickly, needs to be replaced too often, and stops working when the battery dies. The included Panasonic battery was dead when received new.

"My Third H10 in 5 years. After one year battery life is reduced...." Read more

"These HR monitors work well, but they have an expiration date...." Read more

"...After a month: Aside from feeling a noticeable improvement in quality of life… My pace in rowing (at the same HR) has already improved a lot since I..." Read more

"...-This thing eats batteries. With my Garmin straps in the past I would say a battery lasts about 8 months...." Read more

Super accurate HR Sensor Strap!
5 out of 5 stars
Super accurate HR Sensor Strap!
I went looking and while others were really good choices too; when it comes to accuracy Polar heart rate sensors and straps are highly rated across the board, compatible with pretty much everything, and are durable.I was particularly impressed with the in-depth research and testing they do with their equipment, neutral comparisons that they make with other comparable HR sensors as well as certified medical heart rate monitoring.I started leaning toward the Polar H10 , which are the 5th generation of Polar's Heart Rate tech, which started in 1977.According to Polar's testing against medical-grade heart rate equipment and other heart rate sensors - the ECG H10 sensor detects HR within 2 ms accuracy at 92.9% for running, 99.3% for cycling, 95.3% for weight training, 95.6% for all activities combined.Amazing accuracy, and very much as good or better than the informal tests I have done of previous HR sensors and straps that I have had - my tests being comparing them to other equipment as well as manually using the old tried and true 'two fingers on the neck or wrist and a watch' method. This sensor IS quite wide and extends across a large part of the strap, this entire section is the HR sensor area.The H10 can do two Bluetooth conenctions, with ANT+ both will connect to multiple ANT+ channels and there is a proprietary GymLink connection also - which connects to some fitness devices.The H10 can be used with any device underwater.The H10 has an internal memory that can save one training session on its own and can be accessed with one of the Polar apps like Polar's Beat app.The H10 works with pretty much everything and anything that we use for fitness nowadays. Anything that receives Bluetooth (Bluetooth 4.0 and Bluetooth BLE) or ANT+ and the Gymlink 5 kHz signals. It will output Bluetooth and ANT+ at the same time and even two Bluetooth devices at the same time.This of course includes watches by nearly all manufacturers as well as nearly all bike computers (not including non-smart old-style bike speedometers/odometers without ANT+ and Bluetooth), and any smartphone. This list is extensive.The HR sensor is not rechargeable but uses the common 2025 battery, Polar says that it lasts 400 hours. One thing you may want to do to extend battery life (recommended by Polar themselves and individuals who have used it over time) is to pop up one of the sensor pod's connectors out of the strap so that it goes to sleep, I have tested it many hours after I have stopped an activity and taken off the chest strap, and sometimes it still is transmitting. So this is something to keep in mind.The battery is easy to change, via what looks at first glance to be a quarter-turn battery hatch that you turn with a coin to open but it actually is quite different, as it snaps open with a little tab. The battery door is of course sealed with an o-ring and everything seems very tight and secure.The total weight with the strap is 60 grams with the sensor pod itself being 12 grams by itself.The soft strap is very easy to put on, wet it with a little water so the sensor can get good contact with your chest skin (you can wait for a little sweat to do it for you but then the sensor may not read well until that happens). You position the sensor monitor pod itself in the front of your chest, which puts the long wide sensor strap in a very good position all across your chest. This sensor area is quite extensively wide to give you that nice accuracy.You could even position this fairly inaccurately and it may still probably work - whether you positioned it by accident or deliberately as perhaps the strap does not fit you well for whatever reason. Some people do have problems with chest straps for many reasons, so I think those who do might find this works better than other chest straps with smaller sensor areas. It even works if you get it too low or too high on your chest, within a reasonable range.There are little rubbery dots on the strap itself to keep it in place. Does this actually make it work better? I don't know, but it seems like a great idea. I have never had one move on me so I can't say whether this makes any difference to me personally, but perhaps to others who have issues with HR chest straps staying in place, it might be just the thing to help.The latch snaps into place easily with one end snapping directly into the other end, to take it off you push a button on the latch and it disengages easily. The button is slightly recessed so you never accidentally pop it off (at least I have not as yet) and also won't get squeezed even by a tight jersey or compression shirt.The strap is very adjustable, with a conventional adjustable loop system to tighten or loosen it. There are two size options for the strap when you order - XS/S and M/XXL. The smaller one covers chests 20-30 inches (58-71 cm) in diameter while the larger one goes from 30-45 inches (67-95 cm).While riding or running or lifting or anything else I can't even feel it unless I consciously make myself aware of it.The Polar H10 sensor monitor is easily cleaned with a little dish soap and water, and a quick wipe to dry it. The soft strap is also very easy to clean with soap and water, or you can put it in a washer - though I recommend using a small washer bag to keep it from snarling and getting bent around other things, and maybe air-dry it instead of using a dryer Make sure you take the sensor off first of course.The soft strap now comes in not only the standard black but a burgundy with a design on it.The H10 is fully waterproof and can be used underwater for swimming and other things, up to 30 meters deep.And you don't need your watch or phone with you for swimming or anything else, at least for one session as the internal memory can store one workout. To set this up you use the Polar Beat app so you do have to connect it to your phone first, set it up and then you can use the strap without the phone present or nearby. When you are finished you reconnect and download the sensor data to the Polar Beat app, which can upload it to a few other sites or allow a download.The Polar Beat app also can be used to keep the firmware updated, check battery power, etc. And there are a number of workouts and such that you can use it for. The Polar Beat app can also estimate your Vo2 Max, you find this in the app under Upgrades (not sure why - as it's a free option) and then under Fitness Test. It estimated mine at 49, somewhat above what other fitness services estimates mine at but very close.Also, the Polar Flow app is another app with training and syncing to other services.And of course any other device you sync it to will have it's own abilities when connected to the Polar H10.You can even test your HRV (Heart Rate Variability), which is a good test of your health and recovery.You could use this as a 24-hour monitor with the right app, I suppose, but the H10 is really meant for exercise. But if you wanted to test your HR and HRV over an extended period of time you could. I think it would be comfortable sleeping, depending on the person, but it's not really made for that and it's possible that the sensor area might dry out over such a long period of inactivity.Lastly, I was going to include some comparison charts between the H10 and other HR monitors that I have but, outside of a few dropouts by optical heart rate sensors because of arm movement - which is to be expected, they all performed within pretty much identically. I had to really go data point by data point comparisons to see much difference.So in conclusion I would very highly recommend the Polar H10 - you are not going to be disappointed in accuracy, comfort, usability, connectivity, and compatibility.UPDATE Spring 2023 - For the last few months the output has become increasingly erratic with low heart rate readings. I have tried to wash the strap as much as I could and added extra moisture to the sensor pads, and even electrode gel. Both things seemed to help for a while, yet the strap became more and more intermittent over time, despite washing and using the electrode gel. It had to be thoroughly washed in the washing machine after each use for it to have any chance of working halfway decent. Once I started biking outside a few times it went in the opposite direction and started sometimes showing super-high HR readings.I was going to send it back to Polar for warranty but it seemed obvious that it was the strap and not the sensor itself, and instead of paying the shipping cost to send it back for warranty I decided to just buy a cheap replacement strap.That did the trick and it works perfectly and reliably again. The replacement maybe isn't as nice as Polar's but the important thing is that it works, I will see what the durability is for it.
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Top reviews from the United States

  • Reviewed in the United States on December 17, 2024
    Size: M-XXL: 26-36"Color: BlackVerified Purchase
    The device is simple and inexpensive relative to other tech monitoring devices, but as accurate as it gets for a consumer device and the software makes it surprisingly valuable. The Polar app itself does a great job of tracking a multitude of day activities, for me so far, walking, tennis, cycle, ski and treadmill, but so many more activities that can be tracked. Then an app called sleep2 from Nukkuaa to track sleep pretty accurately without needing the more expensive watches with more features than I need. Wearing the device is a little uncomfortable at night, and the Sleep2 subscription is expensive. But for 2-3 months to see the pattern has been great.
  • Reviewed in the United States on May 21, 2020
    UPDATE after one year: Over time, the unit started to eat through batteries MUCH faster. No idea why. As an experiment, I tried removing the battery after each use, and this solved the problem. So from now on, I just pop out the battery when I'm done, which isn't too inconvenient. You can always check the battery level in Settings, within the app. Overall, after one year, I am still very pleased with the unit.

    What I use this for - I’m a rower. I primarily use this with my Concept 2 rowing machine, and it connected right away with the PM5 on my machine. It also works flawlessly with Concept2’s app for this, called ErgData, which records your workouts on your phone and then uploads them to the Concept2 Logbook online.

    The “Polar Beat” App, and website profile - To use this HR monitor, you’ll need to download Polar’s “Polar Beat” app, and create an account which will automatically sync your workouts to your account which you can see in more detail on the website. I have an Android, I’ve had no issues with the app, and I think the overall layout is clear, user-friendly, and not too bulky. I’ve also had no connectivity issues, and RARELY ever have a loss of connection or hiccup in any readings. However, I would not trust any data related to distance or pace. As seen in my screenshot, my phone interpreted my straight path down a street as totally zig-zagged. The distance and pace is not accurate as a result. But I’m assuming this is my phone’s GPS which is wrong, and probably(?) not the app. Luckily, I am not a runner so I personally don’t care about this issue, but just pointing out that it may be an issue for some.

    Regarding accuracy: The accuracy of calories burned and heart rate training zones is not only based on HR, but if you know your Vo2 max and anaerobic threshold, you can input these, as well as other data, into your profile via the website to increase the overall accuracy (as seen in my screen shot). Also on the website you can analyze your individual workouts in more detail, and see a handy calendar view of them.

    Strap sizing - I have a 34” chest circumference. The M-XXL, when loosened to its maximum *un-stretched* length, is 35” long. When stretched, this extends to 45” or so. So if unless your chest is larger than 45”, you should be fine with the M-XXL. Also, the "turquoise" is totally BLUE in color, not aqua or greenish at all. :p

    Personal use and opinions -

    This HR monitor has quickly and completely taken my health and fitness to another level. I seriously regret not having purchased one sooner!

    I’m a high-intensity kinda person when it comes to exercise. I got hooked on HIIT once I tried it years ago. I never, ever used to bother with endurance stuff (long sessions with LOW heart rates), until I got this HR monitor, and I was advised that I needed to do more endurance work to increase my baseline aerobic fitness. It took a LOT of patience for me to slow down, and actually keep my HR between 130-140. Turns out I had truly never worked out at such low intensity. Despite thinking this low intensity stuff was useless, I stuck with it, and I was flabbergasted at the results. Within just a week of beginning long, steady state daily rows (45m-1hr):

    -my resting HR dropped by about 5 beats.
    -my blood pressure dropped to completely normal levels (I’m 35 with an excellent bill of health, but doctors could never understand why I had BP readings that were always high. Apparently, I just needed a little more aerobic fitness!)
    -and this was totally unexpected: my mental stress levels decreased dramatically. I suddenly had more patience during the day, and even better appetite control. It felt like I was taking a chill pill.

    And this was just after ONE week.

    After a month: Aside from feeling a noticeable improvement in quality of life… My pace in rowing (at the same HR) has already improved a lot since I began, which is direct proof of an improving cardiovascular fitness. Further: I recently completed a really tough hike which I hadn’t done in about 7 years. Result: it was a LOT easier this time because my HR drops much more quickly now, so I felt almost *instantly* rested as soon as the elevation would level out. Without the use of a HR monitor to control my workouts in order to properly build this baseline aerobic fitness, NONE of this would have been possible!

    (And by the way, the Polar Beat app recorded that entire 4 hour hike flawlessly, as my phone was tucked away in my jacket pocket with the screen off and locked, and I never had to fool with it or double-check it).

    Look, just buy this. Whether you’re experienced or a beginner, don’t ever, ever trust your “perceived exertion.” It is NO substitute for actual data. I wasted SO many years doing that, and robbed myself of a higher level of fitness!! To achieve fitness, you need a combo of high AND low intensity, not just one or the other. And to do this, you need a HR monitor. It’s SO simple: choose your workout and just stay in your zones! :)

    Hope this helps!!
    Customer image
    Eva
    5.0 out of 5 stars You need this if you want to work out properly!
    Reviewed in the United States on May 21, 2020
    UPDATE after one year: Over time, the unit started to eat through batteries MUCH faster. No idea why. As an experiment, I tried removing the battery after each use, and this solved the problem. So from now on, I just pop out the battery when I'm done, which isn't too inconvenient. You can always check the battery level in Settings, within the app. Overall, after one year, I am still very pleased with the unit.

    What I use this for - I’m a rower. I primarily use this with my Concept 2 rowing machine, and it connected right away with the PM5 on my machine. It also works flawlessly with Concept2’s app for this, called ErgData, which records your workouts on your phone and then uploads them to the Concept2 Logbook online.

    The “Polar Beat” App, and website profile - To use this HR monitor, you’ll need to download Polar’s “Polar Beat” app, and create an account which will automatically sync your workouts to your account which you can see in more detail on the website. I have an Android, I’ve had no issues with the app, and I think the overall layout is clear, user-friendly, and not too bulky. I’ve also had no connectivity issues, and RARELY ever have a loss of connection or hiccup in any readings. However, I would not trust any data related to distance or pace. As seen in my screenshot, my phone interpreted my straight path down a street as totally zig-zagged. The distance and pace is not accurate as a result. But I’m assuming this is my phone’s GPS which is wrong, and probably(?) not the app. Luckily, I am not a runner so I personally don’t care about this issue, but just pointing out that it may be an issue for some.

    Regarding accuracy: The accuracy of calories burned and heart rate training zones is not only based on HR, but if you know your Vo2 max and anaerobic threshold, you can input these, as well as other data, into your profile via the website to increase the overall accuracy (as seen in my screen shot). Also on the website you can analyze your individual workouts in more detail, and see a handy calendar view of them.

    Strap sizing - I have a 34” chest circumference. The M-XXL, when loosened to its maximum *un-stretched* length, is 35” long. When stretched, this extends to 45” or so. So if unless your chest is larger than 45”, you should be fine with the M-XXL. Also, the "turquoise" is totally BLUE in color, not aqua or greenish at all. :p

    Personal use and opinions -

    This HR monitor has quickly and completely taken my health and fitness to another level. I seriously regret not having purchased one sooner!

    I’m a high-intensity kinda person when it comes to exercise. I got hooked on HIIT once I tried it years ago. I never, ever used to bother with endurance stuff (long sessions with LOW heart rates), until I got this HR monitor, and I was advised that I needed to do more endurance work to increase my baseline aerobic fitness. It took a LOT of patience for me to slow down, and actually keep my HR between 130-140. Turns out I had truly never worked out at such low intensity. Despite thinking this low intensity stuff was useless, I stuck with it, and I was flabbergasted at the results. Within just a week of beginning long, steady state daily rows (45m-1hr):

    -my resting HR dropped by about 5 beats.
    -my blood pressure dropped to completely normal levels (I’m 35 with an excellent bill of health, but doctors could never understand why I had BP readings that were always high. Apparently, I just needed a little more aerobic fitness!)
    -and this was totally unexpected: my mental stress levels decreased dramatically. I suddenly had more patience during the day, and even better appetite control. It felt like I was taking a chill pill.

    And this was just after ONE week.

    After a month: Aside from feeling a noticeable improvement in quality of life… My pace in rowing (at the same HR) has already improved a lot since I began, which is direct proof of an improving cardiovascular fitness. Further: I recently completed a really tough hike which I hadn’t done in about 7 years. Result: it was a LOT easier this time because my HR drops much more quickly now, so I felt almost *instantly* rested as soon as the elevation would level out. Without the use of a HR monitor to control my workouts in order to properly build this baseline aerobic fitness, NONE of this would have been possible!

    (And by the way, the Polar Beat app recorded that entire 4 hour hike flawlessly, as my phone was tucked away in my jacket pocket with the screen off and locked, and I never had to fool with it or double-check it).

    Look, just buy this. Whether you’re experienced or a beginner, don’t ever, ever trust your “perceived exertion.” It is NO substitute for actual data. I wasted SO many years doing that, and robbed myself of a higher level of fitness!! To achieve fitness, you need a combo of high AND low intensity, not just one or the other. And to do this, you need a HR monitor. It’s SO simple: choose your workout and just stay in your zones! :)

    Hope this helps!!
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  • Reviewed in the United States on December 29, 2024
    Size: M-XXL: 26-36"Color: BlackVerified Purchase
    First off it is more accurate than any green light. This is a real electrophysiological reader. And: this is the most durable chest strap. I’ve tried the garmin and it only lasts 3 or 4 months. Don’t bother changing the batteries, the garmin does not last longer than the batteries. This polar H10 last over 2 years. I’ve bought about 4 of them in the last 10 years. The most recent lasted 26 months. Then it sputters and ruins your workout. But only once ever2 years. Good for the price. I can’t speak to swimming with it, but I sweat a lot, so it must be somewhat resistant. Will it ever last longer? I think this is now considered a budget technology even though it is more accurate than the green lights on smart watches, but I’d be willing to pay more for a more durable device.
  • Reviewed in the United States on June 14, 2024
    Size: M-XXL: 26-36"Color: BlackVerified Purchase
    Update 10/22/24. Too funny! After 3 months I got another automated email telling me to do the same things I told them I did to get it to work.

    Polar was literally and figuratively the first name in heart rate monitoring and they've been reduced and degenerated to this. Pathetic.

    Update 7/20/24:
    Before I wrote my last update I'd chatted with their bot which told me to send them an email requestion support. I got an email back from Katerina who I'm sure was an email bot. I sent them an email describing the problem. THEN a few days later they send me a survey email asking to rate their customer service. This company and their product ... Dumpster Fire!

    Update 7/16/24: That's IT, I'm done! I've bought three of these cursed things because I need the functionality of the Flow app. First one went south after about a year and a half - wouldn't connect. Second one stopped connecting after a year. Third one I bought a month ago. First it started reporting lower than actual heartrate, then it started working OK. Then (as others have reported) I had to take 10 minutes before every workout to reset the blasted thing in order for it to connect. Finally it just stopped pairing altogether. Google "H10 won't connect" and you'll find all kinds of ticked off customers. They've stopped phone and even chat customer support and now offer human support only by email!!? Here's a one of the PO'd customers on Reddit: "Done with this piece of garbage - their response time to my email was more than 2 months"
    I think they're having coding issues and it doesn't exhibit itself in the same manner for different phones. Maybe their code will not keep up with OS updates on some phones or whatever but something's messed up. I like customers cannot get the flow app to update. Used to be great but useless now. What planet are these people on?

    I can only think that the positive reviews here were as typical .. people get the product and fire off a review after a day or two. Do Not Buy!!

    Prior review:

    Very accurate when it pairs and works but the Einstein programmers at Polar really set up a convoluted pairing/connect method that requires you pair through the flow app and can be stubborn as hell sometimes requiring the sensor to be unpaired and reset. It's aggravating as all get out, and as reported by other users will just flat out fail to pair eventually. I generally have to say a rosary to get the damned thing to pair, then perform the stations of the cross in order for the app to recognize the paired device and continue repeating Hail Marys hoping that the results will be accurate as sometimes the flow app will register up to 20 beats fewer than my actual heart rate. If I get it working then I throw a pinch of salt over my shoulder in the hope that the pairing won't drop. Also as reported by other users, I think Polar know their stuff is messed up but won't own up to it. They used to have phone support but I'm sure they got overrun and now they just do chat support where I get a lot of "I understand your frustration" but no solution. Unfortunately once you get it to work this is the most accurate sensor on the market and I need the functionality of the flow software. So since my first two flat out failed to pair after a year I just had to buy my third one. So plan on it being a once a year throwaway product.

    And if you're really self-loathing go ahead and try to load the Beat app as well as the Flow app. See if you don't start swearing. When I connect to the Beat app it actually breaks the flow app. And don't you DARE try to use another wearable. If I pair my Galaxy watch.. Fuhgedabahdit! I'll be trying to reconnect for the next half hour. So before you buy this thing read the other reviews like the one where the guy has to a lot 10 minutes in advance of his workouts because he has to repair it to his iPhone every time.
    ....
    If Polar had any integrity they would post these issues and at least indicate that they're working on them on their website instead of just posting we did another update and it fixed some issues etc. I can't wait for the wearable technologies to mature so I can bail on this company. This is the most irritating product I own. I might suggest that Polar drug test their CIO and programmers before they hire them.
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  • Aimeé A.
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on December 3, 2024
    Size: M-XXL: 26-36"Color: BlackVerified Purchase
    Increíble para hacer las mediciones de HRV en Kubios. Muy buena calidad y presentación.
  • Llegó perfectas condiciones
    5.0 out of 5 stars Producto original
    Reviewed in Mexico on September 20, 2024
    Size: M-XXL: 26-36"Color: RedVerified Purchase
    Lo uso cada que corro o salgo en la bici. Como la foto cinto rojo.
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    Llegó perfectas condiciones
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    Lo uso cada que corro o salgo en la bici. Como la foto cinto rojo.
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  • lucas t.
    5.0 out of 5 stars Cumpre oq promete
    Reviewed in Brazil on September 14, 2024
    Size: M-XXL: 26-36"Color: BlackVerified Purchase
    Bem funcional, utilizo pra treinos de boxe, k1 e Jiu-Jitsu
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  • CARLOS EDUARDO RANGEL JUNQUEIRA
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    Reviewed in Brazil on May 7, 2024
    Size: M-XXL: 26-36"Color: RedVerified Purchase
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  • Assim Sahraoui
    5.0 out of 5 stars Extremely light, easy to wear, long lasting.
    Reviewed in Canada on January 23, 2024
    The battery lasts a very long time. This was bought with a university course in mind. Real time heart-rate, very lightweight and with an adjustable belt to resize and tighten if needed to. The electrodes need to be wet a little bit before the item is worn for it to work properly, keep that in mind.

    The bluetooth works as intended and requires the use of the Polar App. the only issue is the localization function on the App which will, at least inside a gymnasium, not be very helpful when it comes to locations and distances. All in all, the center piece of this review remains the heart monitor, which does a pristine job.