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Polar OH1 Heart Rate Monitor

4.1 4.1 out of 5 stars 505 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand POLAR
Material Elasticized-Fabric
Color Black
Compatible Devices Smartphones
Screen Size 0.96 Inches
Product Dimensions 2"L x 3"W x 4"H
Item Weight 2.72 ounces
Battery Life 200 Hours
Sensor Type Wearable
Battery Description Lithium-Ion

About this item

  • Convenient - Embrace the freedom of Polar OH1's unmatched diversity for use in countless different sports. This optical heart rate sensor offers an easy-to-use alternative to heart rate chest straps
  • Versatile - pair it with your favorite smart phone, iPhone or Galaxy app, your Polar watch or other training device or broadcast your heart rate data in a group environment
  • Built-in memory - store up to 200 hours of training data
  • Updatable - heart rate monitor contains firmware updates that enhances its functionality
  • Rechargeable - heart rate monitor lets you enjoy 12 hours of operating time on its rechargeable battery
  • Providing versatility, comfort and simplicity, the Polar oh1 is an optical heart rate sensor worn on the arm. Whether running, riding, or rocking a workout at the gym, this heart rate monitor armband accurately and consistently captures heart rate using P
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Top Brand: POLAR

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From the manufacturer


Polar Beat & Polar Flow

Try Polar OH1 with Polar Beat, Polar’s free fitness and training app and get real-time heart rate on the screen of your phone during your workouts.

Polar Flow is Polar’s free app and web service that helps you plan, sync and analyze your training, follow your progress and find inspiration for training from others.

Polar OH1

Optical Heart Rate Sensor

Polar OH1 optical heart rate sensor tracks heart rate from the arm and makes heart rate tracking easier than ever. It’s a great alternative for heart rate chest straps. It attaches to your arm with a comfortable textile armband and measures heart rate with Polar’s high-quality optical heart rate solution.

  • Optical heart rate (6 LED solution)
  • Bluetooth connectivity
  • Works with all Polar BLE devices, Polar Beat and many other fitness apps
  • Built-in memory (4 MB, 150-200h of training time)
  • Waterproof (30 m)
  • Machine-washable textile armband
  • Rechargeable battery (up to 12h of operating time)
  • Updatable firmware

Connected mode

Polar OH1 streams heart rate to Polar sports watches, cycling computers and compatible apps and gym equipment via Bluetooth. It’s a great alternative for a chest strap heart rate sensor.

Train with an app

Polar OH1 is compatible with many popular fitness apps on both iOS and Android phones. Try it with Polar Beat, Polar’s free training app.

Standalone mode

Train without your phone or a watch – Polar OH1 has a built-in memory for up to 200 hours of training data. You can easily sync your training data to Polar Flow, Polar’s free app and web service.

Comfort and convenience

Polar OH1 is easy to put on and take off anytime, anywhere. You can wear it on your upper arm or forearm. Heart rate tracking is now simpler than ever.

OH1 H10
See Details
See Details
Customer Reviews
4.1 out of 5 stars
505
4.3 out of 5 stars
1,745
Heart rate Optical Chest strap
Placing Upper arm or forearm Around the chest
Internal memory 4MB, up to 200 hours of data With Polar Beat, for one session
Bluetooth Smart connectivity ✓ ✓
Waterproof ✓ ✓
Battery Rechargeable (USB, battery life up to 12 hours) Changeable
Works with Polar products ✓ ✓
Works with Polar Beat ✓ ✓
Works with fitness apps ✓ ✓

Product Description

Providing versatility, comfort and simplicity, the Polar oh1 is an optical heart rate sensor worn on the arm. Whether running, riding, or rocking a workout at the gym, this heart rate monitor armband accurately and consistently captures heart rate using Polar proprietary heart rate Algorithm and 6-LED solution.

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Technical Details

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Polar OH1 Heart Rate Monitor

Polar OH1 Heart Rate Monitor

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Product guides and documents

User Manual (PDF)

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
505 global ratings

Customers say

Customers like the charging feature of the biometric monitor. They say it charges quickly and lasts up to 8-10 hours between charges. They like that it works great for strength training and core work. They also say it provides an accurate measurement of heart rate in real time. However, some customers have reported issues with the heart rate monitor. Customers also dislike the battery life and have mixed opinions on connectivity, and ease of use.

AI-generated from the text of customer reviews

95 customers mention67 positive28 negative

Customers like the performance of the biometric monitor. For example, they mention it works well in record mode for swim sessions, does very well with weights and core work, and is accurate. Some say it's wonderful with their Apple Watch and works well to monitor heart rate.

"...I couldn't be happier with this. It works perfectly with Polar Beat on my Note 8...." Read more

"...it tracks HR right on the money and is plenty responsive for "normal" type exercise...." Read more

"...So to sum up, this this does nothing well...." Read more

"...HR reading - tracks well with my polar chest strap, and works better than the strap when it's very cold (<<0 deg C).*..." Read more

58 customers mention49 positive9 negative

Customers like the accuracy of the heart rate monitor. They say it provides an accurate measurement of heart rate, real time. Some say it's the most accurate optical HR on the market, and that it works great when it connects to their phone.

"...and resistance training sessions are easily tracked and I get a pretty consistent HR compared with other products...." Read more

"I have used Polar Chest straps for years, as I find them the most accurate and most responsive of the different methods and brands out there...." Read more

"This is the perfect heart rate monitor for training in the gym...." Read more

"...IN CONCLUSIONIf you want a comfortable, accurate monitor that works when it finally syncs, and don't care about​ syncing issues, or..." Read more

32 customers mention27 positive5 negative

Customers like the comfort of the biometric monitor. They mention that it fits comfortably on their forearm and doesn't move around during workouts. They also appreciate the adjustable armband and find it much easier to wear than the chest band.

"...It is light, comfortable and secure...." Read more

"...-Easy to put on/off the arm- Comfortable.THE BAD (in the order I experienced it):The instructions are close to useless...." Read more

"...Armband fits comfortably and doesn't move around during workouts, which beats expectations...." Read more

"...The arm strap is more comfortable to wear than the chest strap, but definitely not as comfortable as just wearing normal headphones..." Read more

10 customers mention7 positive3 negative

Customers like the charging of the biometric monitor. They say it charges easily, has a good charging solution, and lasts up to 8-10 hours between charges. The heart rate sensor has its own rechargeable battery built in.

"...Compact size.* Good charging solution (small USB dongle).* Easy and pain-free pairing with my V800.Cons:*..." Read more

"...Also love the fact that I can recharge this easily without having to frequently replace a watch style battery as on the chest straps...." Read more

"...Worked great until it didn’t! Not even a year out it just DIED & does not charge!! What a waste of money!!!" Read more

"...Once you figure this out it's very simple to use. Charges quickly and lasts up to 8-10 hours between charges." Read more

41 customers mention18 positive23 negative

Customers have mixed opinions about the connectivity of the biometric monitor. Some say it has good connectivity and is comfortable to wear, while others say it doesn't automatically sync.

"...It's been a week.When I turn on the OH1 the Bluetooth does not automatically sync to the OH1 like every other Bluetooth device I have...." Read more

"...My treadmill and resistance training sessions are easily tracked and I get a pretty consistent HR compared with other products...." Read more

"...Pairing is a struggle every time and requires multiple restarting of both app and device . Do I love this device? No but I don't want a chest strap...." Read more

"...Pros:* Reliable HR reading - tracks well with my polar chest strap, and works better than the strap when it's very cold..." Read more

35 customers mention21 positive14 negative

Customers are mixed about the ease of use of the biometric monitor. Some mention it's easy to use and convenient for normal use, while others say it needs a lot of work, the app needs reworking, and the instructions are close to useless. The device to your phone is complicated and frustrating, and it'll only work if you start the app.

"...Good charging solution (small USB dongle).* Easy and pain-free pairing with my V800.Cons:*..." Read more

"...THE BAD (in the order I experienced it):The instructions are close to useless. They basically say to do the setup, start it and it works...." Read more

"...It is easy to put on, pair and activate...." Read more

"...Fits fine, works great, maybe the easiest thing to set up I've ever bought.Cons:..." Read more

22 customers mention4 positive18 negative

Customers are dissatisfied with the battery life of the biometric monitor. They mention that it drains quickly, and they have to charge it every 3-4 hours. Some say that the battery starts dying about 35 minutes into their run.

"...I get about 2.5-3 hours max per charge, and that is not long enough for longer runs and XC skiing...." Read more

"...two 45 min runs on two days, the light started blinking red, indicating low battery...." Read more

"...BATTERY LIFE: This thing doesn't hold a charge long. It'll last a workout or two then you need to charge it again...." Read more

"...The only thing I dislike is the life of the charge. It seems I need to charge it after 3 hours, which is fine...." Read more

22 customers mention0 positive22 negative

Customers are dissatisfied with the heart rate monitor. They say that it does not accurately monitor heart rate in real time, it would never turn on, and there is no way to see heart rate on the device. Some customers also mention that the sensor is junk and the device is erratic.

"...LATENCY: There is still a heart rate reading lag using the optical sensor...." Read more

"Doesnt accurately monitor heart rate in real time as it claims...." Read more

"I followed the instructions. It keeps saying there is no data when connected to the computer...." Read more

"...with ease of pairing and convenience, I returned it since it does not track RR values, which are necessary to use Polar's Ortho and fitness test...." Read more

DIED after 10 months!!!!
1 Star
DIED after 10 months!!!!
Bought this in June 2023. Worked great until it didn’t! Not even a year out it just DIED & does not charge!! What a waste of money!!!
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Top reviews from the United States

Sumo
5.0 out of 5 stars I've come to trust Polar HR tracking products and love the new design of the updated devices with the ...
Reviewed in the United States on February 25, 2018
Verified Purchase
I recently went through a couple of the newer Polar wrist wearables (M430 and A370) and returned them due to the sleep tracking. I went with another wearable that I've used in the past and tracks my sleep without issue. But I wanted something that I could trust when working out. I've come to trust Polar HR tracking products and love the new design of the updated devices with the 6 LEDs. I saw this and had to give it a try.

I couldn't be happier with this. It works perfectly with Polar Beat on my Note 8. My treadmill and resistance training sessions are easily tracked and I get a pretty consistent HR compared with other products. I feel that Polar has a more "honest" calculation for calories burned, compared to other products which may be over-calculating the calorie burn.

The only "con" I'd say that I have, is that it seems to have a hard time syncing after doing a fitness test. It requires me to power cycle my phone and the OH1 a few times before it will stop trying to sync every min or so.
8 people found this helpful
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Robert C
5.0 out of 5 stars Much better than a wrist sensor, almost as good as a chest strap
Reviewed in the United States on January 28, 2019
Verified Purchase
I have used Polar Chest straps for years, as I find them the most accurate and most responsive of the different methods and brands out there. I use my H10 strap with the A370 wrist device, and it's an ideal setup. Unfortunately, I started to get an irritation on my chest (after more than 15 years of using a chest strap!) so I decided to try just the A370 with wrist-monitoring. It works, but there are too many spikes and gaps during a heavy, sweaty workout; I like to look at my HR charts from time to time, and that's annoying. So I got the OH1 and it works great with my A370. It may be a little bit slow-responding if you're doing some kind of HIIT stuff where you need to see your HR go up and down real fast within seconds, but for running, biking, elliptical, etc. it tracks HR right on the money and is plenty responsive for "normal" type exercise. My estimate is that it's no more than 2-4 seconds behind any big jumps or dips in HR. More importantly (to me) if you look at your HR chart, you won't see any unexplained spikes or gaps where the monitor lost track. I'm probably going to switch from the H10 to OH1 full time, based on my experience.
One person found this helpful
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MICHAEL A. LAMASTRA
5.0 out of 5 stars Works great for strength training!!!
Reviewed in the United States on April 9, 2018
Verified Purchase
This is the perfect heart rate monitor for training in the gym. I have been using it regularly for almost 2 months, and found it to be as accurate, or more accurate in some cases than a traditional chest strap. I wear mine on my upper arm with the sensor positioned on the side of my inner left bicep. It is light, comfortable and secure. I found that other optical heart rate sensors like those found on some activity trackers cannot handle measuring heart rate during strength training. For me, they’ll usually show something like a 65bpm eventhough I am in the middle of working hard on strength exercises and can feel my heart rate to be much faster. With the Polar OH-1, I get reliable results that actually mirror the effort I’m putting in. The total calories burned at the end of a session is always a sensible number that allows me to properly calculate my nutritional needs for the day. This item is a highly recommend for me. You can pair it with the Polar A300 which looks like the most affordable option, and is the watch I have been using.
5 people found this helpful
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Dr. Sliverthorn
4.0 out of 5 stars The only optical HR that I've tried that works.
Reviewed in the United States on January 5, 2018
Verified Purchase
This is the first optical unit that I've tried (including Scosche, Polar A360, and Mio) that reliably reads my HR. It should get five stars, but there are two things I do not like about it. First, the battery life, while on par with the Mio and Scosche is abysmal. I get about 2.5-3 hours max per charge, and that is not long enough for longer runs and XC skiing. Second, the thing is so small that it is very easy to lose.

Pros:
* Reliable HR reading - tracks well with my polar chest strap, and works better than the strap when it's very cold (<<0 deg C).
* Compact size.
* Good charging solution (small USB dongle).
* Easy and pain-free pairing with my V800.
Cons:
* Activation button is small, and it can be difficult to press under layers of clothing. Thus you need to turn it on before you get fully dressed, which further exacerbates the battery life issue.
* Battery life well below advertised amount. This should not occur, since there would seem to be very little variability in use cases for the device.
* So small that it's very easy to lose.

Based on the above, I am looking forward to the OH-2. But I am using the unit, and it will be great in the summer, when chafing from the chest strap can become a real issue.
58 people found this helpful
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Top reviews from other countries

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RémiM
5.0 out of 5 stars Incredible product.
Reviewed in Canada on May 31, 2020
Verified Purchase
Simply the best LED heart rate monitor on the market.
It had replaced my H10 chest strap because of how accurate, comfortable and easy to use it is.
I use it for long runs, intervals sessions, recovery runs and time trials.
It is super accurate, it works all the time and it lasts a week (using it 1h/1h30 everyday).
Polar, you nailed it!
One person found this helpful
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Swastik Nath
5.0 out of 5 stars Very accurate
Reviewed in India on April 21, 2019
Verified Purchase
Very easy to wear.
Loving it
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Stefano Notarianni
5.0 out of 5 stars Prodotto Polar consigliato
Reviewed in Italy on December 5, 2018
Verified Purchase
Molto pratico nell'indossare.
Lo uso tutti i giorni per i miei allenamenti ed è perfetto!
Durata della batteria 6 sessioni da 50 minuti.
One person found this helpful
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SO-IBe
5.0 out of 5 stars 電池の持ちだけが弱点
Reviewed in Japan on November 25, 2018
Verified Purchase
心臓手術後にHRトレーニングを行いたくて購入しました。

iPhone片手に、リアルタイムに心拍数を確認しながら、狙ったゾーンでトレーニングを行う、という目的には完璧な商品です。アプリが秀逸で、心拍数がグラフ化されていくことで、直感的に予測ができ、かなり正確な心拍数コントロールが可能です。

充電を頻繁に行わないといけない点が面倒で、基本的に一度使ったら充電という運用になります。あと、付ける位置によって、うまく心拍数を測定できないことがたまにあり、装着に慣れが必要かなと思います。

こんなに精密な測定機器を使って、グラフィカルに心拍数を捉えながらHRトレーニングが手軽に出来るなんて、すごい時代になったなと、感慨深いです。
4 people found this helpful
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philippe choquette
5.0 out of 5 stars Totally worth it. Better than the competition.
Reviewed in Canada on May 21, 2019
Verified Purchase
Great product. Easy to use. It is really small on the arm, not bulky at all. Love the app that goes with it, well made. The battery is good but to be a perfect product i would have liked it to be maybe 3h more. Now its about 10h which is still extremely good imo. Really satisfied with this product and i recommand it
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