Heart Rate Accuracy between GWA2 and the GW3

[tech_fan]

Is there a difference in accuracy between the GWA2 and the GW3? Trying to decide between the 2 of them.

 

[N4Newbie]

I have no idea.

However, the technology is pretty well established, so I would not expect much difference in these or any other watches that include the functionality. Heck, My Pixel 4XL with this app https://play.google.com/store/apps/details?id=com.dungelin.heartrate and the rear camera always gives me the exact same rate as a pulse oximeter or a blood pressure cuff with heart rate monitor.

With a watch, the most important factor is that the band be kept snug enough to ensure good skin contact and minimal movement on the wrist. Personally, I stopped wearing a wristwatch a decade ago and, though I have tried smartwatches (twice, a few years apart), I find that I can no longer tolerate wearing one regularly and certainly not snug enough to allow the heart rate monitor to work reliably.