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.
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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
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Connected modePolar 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 appPolar 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 modeTrain 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 conveniencePolar 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. |
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| OH1 | H10 | |
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| Customer Reviews |
509
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| 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 | ✓ | ✓ |
Very accurate HR tracking.
I had used charge 2 which was ok in terms of hr accuracy. It was usable when running or stair climbing, but nowhere near useful in strength training or HIIT.Then got versa for a couple of weeks which was better than charge 2 but again was lacking when it came to HR tracking in HIIT.So looked around, chest straps were not for me. So got this to give it a try and so far has been very very good. The attached pic is interval training on rowing. Such a great reflection of what I was doing. It did very well with weights and core work too.It is very slightly uncomfortable on my forearm but not too bad.
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Stefano Notarianni
