I have used may Wahoo products so i was a little leary of this brand but I am very happy with everything about it. I can't attest to the accuracy as I have not compared it to my Apple watch. However it is easy to operate and so light I don't feel its on my arm.

Update 8/14/24: The monitor recently developed a problem of suddenly sending readings much higher than my actual heart rate. I contacted the Coospo people about it. They responded quickly and sent me a new one. So, excellent warranty service from Coospo. Also, while I am here, I want to recommend the Heartool app for use with this monitor. If you need to see your HR in big numbers on your phone while you exercise (while using an armbike, for example, where looking at your watch is impractical) then this app will do the trick. My Matrix treadmill has metal inserts on the handles for heart rate but, of course, they don't work very well. They never do, on anything. But it also has Bluetooth that will link with HR monitors like this one. Works great. I wear this monitor on my forearm; the treadmill picks it right up and displays my HR on the treadmill screen. As best I can tell, the HR it provides is quite accurate. This monitor also greatly improves the HR detection on my Apple Watch. To do this, you start up the monitor, go to Settings>Bluetooth on your watch, find the link to the monitor in the list and click it. From then on, if you are using this monitor while wearing your watch, your watch will use the arm monitor output rather than its own. My wife, after seeing me use mine, bought one for herself to use with her Apple Watch for her outdoor runs. She really likes it. Her watch's HR reading had often paused while she was running but this monitor never does that.

I love that it can connect to multiple devices at the same time. In the gym I can see the heart rate on the machine which makes it easier to see than looking at a phone or watch. Batter life is great. Also it has small light which changes with the heart rate.

I use this for riding my bike. I do not like the ones around the waist. I have some earphones that track my heart rate, but they will not connect to my computer. For my indoor training I use a wahoo trainer and Rouvy. This connected with out any problems. I like that it can fit around my arm. I came with two straps of the same size M. I would like to have had two one large and one medium. The medium, at its largest size, just fits my arm. I am a normal-sized man for arms, I would say. I am very happy about the device. I would like it to have some extra features like blood oxygen level and blood pressure for the cost, but in its category, I feel it is a solid device and good equipment.

Zwift connects to this unit faster than my wahoo tickr. Hopefully this lasts longer than the tickr, too. 🤞

accurate and easy to use and recharge.

This is exactly what I have been looking for - comfortable, accurate, and budget friendly. I have tried smart watches with heart rate monitors and found them to be inaccurate and uncomfortable. I can improve the accuracy by tightening them, but that really increases the discomfort. I have tried chest band heart right monitors that were extremely accurate, but I never enjoyed wearing them and couldn't wait to take them off. I forget that I am wearing this one on my upper arm. Easy to charge, easy to pair with my phone, works with my workout apps, matches what I measure my heart rate to be with a clock and a finger on a neck artery. Exactly what I was looking for. Highly recommended.

I was skeptical because I wasn't sure how compatible it would be with my various apps (top concern). And turns out it IS. It's even compatible with my Polar Flow App which is mostly what I use (I know old school but it works). So yeah, high recommendation especially for what you get. That or Polar really should reprice down their Verity product.

I have neglected to charge this thing since I bought it a month ago. It is still running strong from the initial charge. I do not connect it to a phone or smartwatch so I don't actually know how much of a charge it has left, but I do connect it to the treadmill at my gym for 20 min or so. I've used it for 2 mile runs and a while in the gym, total about 30-60 minutes, 5-7 times a week. After this I will charge it fully in hopes that I do not create some bad battery memory, not sure if it applies to this type of battery.

So, I've used it twice...once on the trail and once at the gym. So far...nice! It has the magnetic charger which is convenient and lites up when fully charged. The unit has a power button...a very positive feedback experience, compared to passive power ups like chest straps. I wore it on my upper forearm and it was able to track HR without issue. I paired it with polar beats and it tracked HR from start to end. Battery status shows in the app. At the gym,it had no problems even with arm movement. I Nordic walk a hiking trail and again, no comms issues. Once the device was in beats, it picked it right up. It comes with a second strap, so I can swap them out to clean them. It's small and I forget it's there after I'm into the workout. I especially dont miss having to set the strap like a chest strap. If it holds up, I'll keep coming back. Regardless, I'm sold on forearm strap formats over chest straps!