Polar H9 Heart Rate Sensor
$69.90
Polar H9 is the ideal jack-of-all-trades heart rate monitor Get reliable heart rate thanks to chest strap measurement. Battery life is 400 hours. Polar H9 heart rate monitor works not only with Polar Flow app and many 3rd party apps, but also with a large variety of equipment. This is due to Bluetooth, ANT+ and 5 kHz technologies, which can also be active simultaneously. Choose you size:
XS-S: 20 inches – 26 inches
M-XXL:
26 inches – 36 inches
Please note, there is a protective film over the HR sensor, please remove prior to use.
38% Polyamide, 29% Polyurethane, 20% Elastane, 13% Polyester
Made in the USA or Imported
POLAR PRESENTS A NEW AFFORDABLE HRM: When you’re looking for a reliable high quality heart rate monitor for your everyday use, Polar H9 is a trusted choice of HR sensor that fulfills all your needs.
GOLD STANDARD IN HEART RATE TRACKING: Built on decades of scientific research and development, recognized by both regular users and researchers around the globe, Polar is proud to be the Gold Standard in HR tracking.
WORKS WITH EVERYTHING: Polar H9 works with ALL HRM compatible Equipment.
MORE EFFECTIVE: Track your heart rate with Polar’s high accuracy sensors. Choose you size: XS-S: 20″ – 26″, M-XXL: 26” – 36”
TURN YOUR PHONE INTO A TRACKER: Enjoy endless connection possibilities with popular apps on your smartphone.
BATTERY: A CR2025 button cell battery must be used in the Polar H9 (included). Other battery sizes may cause damage to, and malfunction of the sensor.
9 reviews for Polar H9 Heart Rate Sensor
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Brad –
Perfect app; strap needs DIY modifications; works great with my old polar watch
The strap sucks. If you have no lats, maybe it won’t slide down your body as you run. But for those of us with big lats, you have to modify this thing. You can either modify the strap, or buy the $40 Polar Pro chest strap (you’ll have to replace any strap you get probably every 6-12 months so keep that in mind). I haven’t tried the outrageously-priced Polar Pro but it’s the only one on the market that has grips all the way around the strap, not just in the front.The chest strap can be easily modified as follows:Buy one of the “zig zag silicone grip wave bands” you can find online, and sew it (or use fabric glue or something) to the inside of your Polar chest strap and it actually stays in place while running! Just make sure you get the strap customized to your underchest first, and give yourself some space for the inevitable long-term loosening of the strap (you might need to tighten it gradually over time).Without the extra grip, you have to find the perfect balance through much trial and error between too tight and too loose. Too tight, and it creates a little cavity where the electrodes are between the strap and your chest (so it gives you terrible readings, if any). Too loose, and it falls down to your waist.I also found that using a small dab of electrode gel on each of the two electrodes on the back side of the chest strap (enough to cover just the two circles on the strap where the strap touches your chest) makes a huge difference in getting a consistent, accurate, read. Don’t use water, it just doesn’t work nearly as well.I love the Polar Beat app it comes with! It was the best free app I could find for Android for a heart rate monitor. I’m sure there are probably better paid ones out there but I didn’t try any of them so can’t attest. The Polar Beat app gives you a graph at the end of your workout that shows your heart rate over time, and tells you how many minutes and seconds you spent in each of the 5 heart rate zones (50%-60% of max heart rate = zone 1; 90-100% = zone 5). It has certain modes that track your GPS location for accurate maps of your runs/rides and the app will tell you every mile when running how long your mile took, your pace, and average heart rate. I’ve never used it for a bike ride.It also tracks calories very well and whenever it doesn’t get an accurate read, it does a pretty good job “guessing” (better than the old Polar Watch I have). If I start my workout on the Polar app first, THEN start the workout on my Polar watch, it will let me use both to track my workouts which is great. That way I can leave my phone in my gym bag while running around the track, and use the watch instead to track % of max heart rate. It’s also nice when using my phone for anything else while I’m doing a HIIT circuit or on the exercise bike, that way I can just look at my watch to see my stats. I don’t have a smart watch so can’t comment on how it works with that. I think you might need to get the latest and greatest to pair it to two or more smart devices at once. But this one works perfectly for one smart device and one dumb device.
bennni11 –
Better than Garmin HRM Dual
I’ve only owned this for about 2 months now, with about 3 – 4 hours of intense sweat contact per week. But my impressions so far it’s better than Garmin HRM Dual that lasted around 1.5 year with similar use pattern. The Garmin had noticeable corrosion on metal contacts, the metal buttons on strap was separating, would drop connections frequently towards end of life, and the ultimate failure points around screws on plastic unit seemed to be a silly design flaw. Unless the Garmin was a case of planned obsolescence, in which case kudos to that Garmin engineering team, it was an inferior product compared to the Polar. The Garmin failed because the thin plastic pieces beneath the tiny screw heads cracked and crumbled away so back cover could not hold battery in place. Seal was broken and the internals corroded to failure. All those weak points on the Garmin seem to be addressed on the Polar. In addition, the Polar actually pairs better with my Garmin products more quickly, consistently, and easily without having to wet the strap when I first put it on. Polar strap is a little narrower but for me its more comfortable because of softer elastic fabric. Minor downsides, the Polar strap loop and hook is not as robust and easy to use and narrower strap sometimes gets a little bunched up.
Amazon Customer –
Unreliable product — worse customer service
I had previously owned Garmin HRMs and only switched to Polar for Bluetooth connectivity with gym equipment, which Polar has and Garmin doesn’t.“Even a broken clock works twice a day”…that about sums it up with this Polar HRM.Worked for a couple of months but then started getting wildly inaccurate readings…if I was training at around 140 BPM, it would inexplicably spike and report 180 BPM and other times report something very low or even 0, as it it we’re disconnected.I did everything right: I used new 2025 batteries, dampened the strap before use, properly wore the strap snugly on the correct part of my chest, gently washed it with mild soap after each use, etc.Polar doesn’t have a customer service phone number that I could find, but I was able to find an email address. After a few back and forth emails — where I had to jump through hoops to troubleshoot the problem — they suggested I send both the strap and the sensor back to them for checking. A week or two later, I received a new sensor and a note that said the sensor had malfunctioned, so they replaced it. Rather than just simply send me a new kit, they returned my old strap. Ok, fine…A month or two later, the same thing happened again. I give up. I won’t buy another Polar product again. Despite its lack of Bluetooth connectivity to my gym’s equipment, I’m going back to Garmin. Garmin is more accurate, reliable, and has an actual customer service department.
HristovV –
Excellent, simple, and reliable heart rate strap.
I have been using this strap for over a year to monitor my heart rate on runs and bike rides, and it has worked flawlesly throughout. I’ve only changed the battery on it once during this time when I noticed that it would not connect to my bike computer. I personally have never had the band slip or shift off my chest.Once you pair it to your watch or bike computer, it’s remarkably simple to use – just put it on and it automatically turns on and starts transmitting to whatever device you have. When you take it off, it automatically powers down. There is no on/off indicator light, but I found that it’s not needed, and would likely just waste battery.
Rohit Malhotra –
Does it’s job. Simple setup and straightforward to use . Have been using for more than a month and has worked flawlessly. Mainly used while cycling and a few times for brisk walks. Heart rate readings are consistent without drop outs
Cesar –
Me gustó, cumple muy bien su función, al principio me incomodaba un poquito el elástico pero ya me acostumbré, las mediciones me parecen buenas, y no he tenido problemas con la batería, como lo decía una persona, a veces es porque no leen las instrucciones 😀
Mammouth –
Le capteur de fréquence cardiaque Polar H9 est excellent pour suivre mes entraînements. La ceinture pectorale est souple et confortable, et le capteur se connecte facilement via Bluetooth et ANT+. Les données sont fiables et l’appareil est étanche, parfait pour la salle de sport, le cyclisme ou la course à pied. Très satisfait de cet achat !
Royden –
This review is for the Polar H9 Heart Rate Monitor (HRM) in Black. I purchased the HRM to prep for a Half Marathon, my first ever, with the hope of using it for Low Heart Rate training. It has been an excellent choice for a beginner like me and has helped accurately track my heart rate during runs. This has helped me improve my runs over the 2 months I’ve used it so far.Build and Quality:The HRM unit and the strap come packaged as separate items. The HRM unit is compact and lightweight, made from a durable plastic and the quality feels solid. Just holding it in your hands you can tell that the plastic is strong enough to withstand any bumps, etc. It houses a CR2025 battery that you can get to using a prying tool. The ‘Soft Strap’ is just that, a strap with a fine-weave and feels velvet-feel to the touch. The quality seems good and like anything elastic its durability will depend on how much it is stretched. It is adjustable and is fastened using a hook into a loop and the HRM unit and strap are connected together with a pair of snap fastener buttons.Features vs Functionality:Polar HRMs are known for their accuracy and I can confirm this sensor is spot on. The H9 is accurate and also very responsive to changes in the heart rate with minimal lag. Where my Garmin wrist sensor would lag before reacting to heart rate changes, the H9 was pretty much instant. Although, for the strap to measure heart rate accurately, the conducting area on the strap needs to be made wet before use to begin with and the sweat then keeps it wet for the rest of the workoutThe strap is made from a comfortable and flexible material and sits snugly against the skin once adjusted appropriately. I’ve not had any chaffing and on tuns I don’teven realise I have the chest strap on. I don’t particularly sweat too much so all I do it wipe the strap down after use and its good to go for the next workout. For sweaty runners, you may need to wash it more often which might impact its longevity.As for connectivity, the HRM is easy to connect to Bluetooth devices and once paired will automatically connect the next time as long as the HRM is snapped to the strap. I’ve also tested connecting two devices and both recieve the heart rates in real time. However, if you ever need to let your running partner to use the HRM then you’d want to unpair this from your fitness tracker first before they connect to it. Else it would send their heart rate to your tracker.The claimed battery life of 400 hours is great but difficult to verify. So what I do to ensure the battery lasts is to unsnap one of the button from the strap to break the circuit.Value for money:The H9 provides accurate heart rate data for a fraction of the price of the H10 as long as you don’t need the memory of the H10. This as brilliant value for money, specially for beginners.
Cliente Amazon –
Il Polar H9 è un sensore di frequenza cardiaca eccellente, perfetto per chi cerca precisione e affidabilità senza spendere troppo. È compatibile con ANT+ e Bluetooth, il che lo rende versatile per collegarlo a vari dispositivi e app, come smartphone, orologi sportivi e attrezzature da palestra.La fascia toracica è comoda e facile da regolare, rimanendo stabile anche durante allenamenti intensi. La durata della batteria è ottima, garantendo mesi di utilizzo senza necessità di sostituzione.In sintesi, il Polar H9 offre un ottimo rapporto qualità-prezzo, ideale per monitorare la frequenza cardiaca in modo preciso e senza complicazioni.