COROS Heart Rate Monitor
Easy to wear for nearly any activity, the COROS heart rate monitor delivers over 38 hours of continuous heart rate monitoring, so you can accurately track your workouts in distraction-free comfort.




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- Requires connection to a 3rd party phone app or sports device that accepts HR data
- Compatible with most Bluetooth heart rate-enabled devices (not included)
- Allows for up to 3 simultaneous connections with Bluetooth-enabled devices
- Multichannel optical sensor enables precise measurement
- Comfortable and simpler to wear than a chest strap
- Easy to adjust the fit and remove the sensor for quick cleaning
- Wear detection allows for automatic device pairing for new workouts
- 38 hrs. of full operation or 80 days in standby mode on a single charge
- Rechargeable with included magnetic USB charging cable
Imported.
View all COROS Heart Rate MonitorsBest Use | Multisport |
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Weight | 0.7 ounces |
HRM Included/Integrated | Yes |
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Get this and not the GARMIN HRM
So much better than the GARMIN HRM. I had the Garmin for a while and frequently had trouble getting it to connect to the GARMIN EDGE computer, come one it's in the same family! You'd think it be seamless but it was not. The COROS always connects having a rechargeable unit is important to me. It charges well and lasts long. My GARMIN ate batteries and finally died when water somehow got inside the unit and killed it. The only complaint is I wished the light would indicate when battery is low. I'm sure you can do it in the Coros app but I didn't see any indicator and I deleted the app because it was the only Coros unit I owned. I recommend this as it's comfortable (way better than a chest strap) and the battery lasts.
Great option for Garmin Edge
I purchased this as an option for my Garmin Edge. The Garmin HRM fits around your chest. This is uncomfortable and a hassle to get the fit correct. They also seem to have a life span of about 2 years because I have to replace them about that often. So, I wanted something that was easier and that fit more comfortably. This fits around my upper arm and I hardly notice that it is there. The one caveat is that you can only connect this HRM to one blue tooth device at a time. So, don't connect it to the app. Set up directly with your Garmin Edge only. Otherwise, you will not get a reading.
Fantastic Purchase!
My Coros Heart Rate monitor arrived today! It’s everything the write up said it would be. I’ve used it for one bicycle Zwift workout. It’s very comfortable to wear and the data on Strava looks smooth. The Lack’O buttons will take a little getting accomplished to, but I can handle it. Of course I can’t comment on battery life yet, but I’m a happy exercise fanatic! And contrary to an earlier review, you don’t need a Coros watch!
Great Heart Rate Monitor with Apple Watch SE
Great heart rate monitor. I started low heart rate training and wanted something more accurate than my apple watch SE. Its a bit difficult to tell if its working with the apple watch so I reached out to Coros support and here's the response: "You can connect COROS HRM with your Apple Watch via Bluetooth directly. After establishing the connection between the HRM and your Apple Watch, the HRM will automatically connect with your Apple Watch when entering HR broadcasting and workout mode. So even though it shows disconnected in the Bluetooth list, when you put the HRM on your arm and start HR broadcasting or enter workout mode on your Apple watch, you will see the green lights on the HRM start flashing and monitor the HR data on your Apple watch." After putting on the heart rate monitor, open your watch blue tooth settings and connect your heart rate monitor. Once it starts flashing it means its paired and you're good to go. Hope this helps out other apple watch users!
The best HR monitor!
I've been looking for an external HR monitor and thankfully my search is over! Full transparency, I still love my Garmin watch but the HR data was starting to get spotty. I looked into the Garmin HR chest straps, including the one specifically for women which hooks onto a sports bra. However, the reviews were mixed and it was $150 dollars. After seeing many pro runners speak highly of their Coros monitors, I decided to give it a try. It's an absolute game changer! From a data side, it's very accurate and is compatible with my Garmin watch & smart trainer. From a practical side, it was cheaper than the other options and I find the armband design much more comfortable than the chest strap. I've worn it on some very sweaty long runs and it hasn't slide down or chaffed. Highly recommend this product for any endurance athlete!
Best HR Monitor I've Ever Used
Much more comfortable than any other HR Monitor I've ever worn. Connectivity makes starting your workouts simple, and accuracy that is comparable if not perfectly accurate with any chest strap.
Arm HR band > chest strap
Great product, easy to use, and more enjoyable than the chest HR monitor. Hardly notice the band is on my arm and easily sinks to my COROS watch and I can see the battery life as well (which is impressive). 10/10 recommend if you are using or considering tracking HR during exercise and want a change from the chest strap
Not a standalone device.
I was looking for a minimalist heart rate monitor, but that is not at all what this device is. It is an accessory for your existing (COROS) watch and is worn on the bicep. I assume that this is to give you a more accurate heart rate than the watch alone. You cannot use it with just your phone and the COROS app - you have to have a watch (or similar device) as well. It may be a great tool in it's own right, but it's not at all what I thought I was buying.
HRM
Very comfortable and accurate. Fixed cadence lock problems with my watch in cold weather.
Coros HRM and Bosch Nyon Bike Computer
I purchased the Coros HRM Armband to give me HR info on my Bosch Nyon bike computer. Pairing it with the Nyon was very easy, and I find it is very accurate and responsive. Very happy with this purchase from REI. Shipping was very fast as a bonus. The bad - it seems finding a magnetic charging cable as a spare to the one included, is very difficult. The only place I could find one is from Coros directly. One star off for this! The included charging cable does work flawlessly and charges very fast.