COOSPO Armband Heart Rate Monitor, Bluetooth ANT+ HR Optical Sensor for Sport, Rechargeable Dual Band IP67 HRM, Compatible with Peloton,Wahoo,Polar,Strava,DDP Yoga

The fit on the arm is great. The heart rate seems to be recorded accurate. I paired it easy with my Suunto Race S, which has s terrible heart rate monitor. Great price, for a high end product!

Brilliant unit. brought for my daughter to do zone training at rugby. you pair with polar app on your phone and get the polar app to send audible messages through bluetooth earbuds when you go outside your range. you can set zones on your phone. and also listen to spotify etc. polar records all the training info historically too. great buy thanks so much. i have the polar watch that does all this as well but that is mine, and didnt want to fork out for a new polar or gamin. this is pretty accurate in comparison to the actual polar watch and the bang for your buck is insane! perfect for a teen.

(posting this review after using it 3-4 times a week for 8 weeks)This is a great HRM. I'm pretty big and have thick arms, but had no problem strapping it to my upper arm. The battery in it lasts a good while; I ride three or four hours a week and charge it every weekend. As far as I can tell I haven't even come close to running it down. The magnetic charging cable is probably the weakest point; not because it doesn't work or anything, but because I'm worried about losing the cable since there's no backup regular USB port. The strap feels well made, is very comfortable and adjustable, and it even comes with a second strap (which I can't comment on because I didn't need to use it).I've had absolutely zero problems with connectivity to either my Android phone or during Strava workouts. I don't have a chest strap to compare it to, but I check the heart rate analysis after every ride and it seems to track my effort accurately—I've never noticed a period where the data drops out or varies wildly. So it may not be accurate down to the exact BPM, but it's definitely good enough for seeing the big picture over a long ride.As mentioned at the top I've been using this for 2 months now, 3 or 4 times a week for logging cycling workouts. It doesn't move around while I'm on the bike. The strap gets a little sweaty, but since it's fabric instead of a rubbery material it doesn't really bother me. Since it doesn't move around it doesn't chafe or anything like that, it just feels a little bit gross and wet when you take it off. But what strap doesn't?

I compared it with my chest strap HRM, which I have already compared to several medical devices, on occasion. It ramps up and down slower than my chest HRM. So when I am on a ride, and I back off and my HR starts to drop on the chest HRM, this one lags. I think the worst case was around 3-4 bpm, and that for a short time. Same on ramping up. I consider that quite acceptable. I tried it on my upper arm, facing in, because the pulse is stronger there (artery). That would not work well for many activities, but bike riding was great. I also tried it on my forearm, also facing in.First few times I found it slow to "start up". That is, give an accurate count. So I made the habit of putting it on 10 minutes before the ride. Not turned on, just on my arm. I think it allows the unit to adjust to touching the skin. After that change, it was just as convenient as my chest strap.Worked great, bike riding, road and mountain. I think I prefer the chest strap for hiking. It's a backup for my chest HRM and the chest HRM is a backup for it. It's more comfortable than the chest HRM. So far, I have tried it only BT to my phone. I didn't like the idea of "signing up" for an account just to use it, so I found the droid app "HR Monitor" by BM Innovations. The down side to that app is that it is difficult to get data from the phone, even though the app give the appearance of making it easy. Next up with be to sync with ROX GPS 11. I'll try to remember to update.edit 2024-07-19: This synced with my ROX GPS 11 as easily as the Coospo chest strap HRM. However, when I started off on a cool morning ride, the HR dropped from 110 to 80 bpm within a minute or so. Then picked back up. A few km later I needed to stop briefly. Wasn't really warmed up. HR dropped again to ~80 bpm, and picked up within a km when I started to ride again. Then stayed in expected range to end of ride. Yesterday I went for an afternoon ride. Temps 30C. Consistent HR for the whole ride. Still not sure if it records a lower HR routinely, but I will check periodically w chest strap. I also wonder how the ROX will handle it if I use both the chest and arm HRMs.edit 2024-08-28: Dropping a star. Twice it has simply stopped during a ride. Yesterday I glanced down to find no HR. I frequently glance at my bike computer, without it really registering. But a zero HR is notable. I immediately restarted. Synced right up. At home, I learned it was off line for 40 seconds. On a bike ride, it's convenient to glance at the bike computer often, but for other activities, not so convenient. So it could be off line for as much as 30 minutes in my other workout routines. No idea of why it stopped. Undisturbed; a bike ride, after all.

I have been using chest straps for years. Getting tired of my non running neighbor asking me why I am wearing a bra strap. So tried this armband. Please see graph where I wore Coospo and Garmin forerunner 965 (uses optical sensor-not much better than a random number generator) and Garmin chest strap (recording data to my bike computer I held in my hand). There is a is a 5 to 10 second delay in the change of heart rate when you change your pace, but unless you’re doing many short intervals, doubt would notice. The time spent in each heart rate zone was about the same between the chest strap and the armband. So, although the delay is a slight issue, definitely acceptable enough for me and much more comfortable.

It is not possible to manage the monitor without downloading a 2 star app which demands your age and info before you can log in. none of this should be an demand.regardless - it don't matter when the device simply is not working.

I had a hard time finding an app that would work well with this product. I finally found the polar heartbeat app and it has been great. Product works well. The charger for this items is an unique magnet charger via USB; I am dreading the day I lose it or it breaks.