This fit bit sense 2 is absolutely horrible. I will be working out and put my hand in the treadmill reader and it will say 130. I will also count about 21 to 22 heart beats In a 10 second timer. But this sense 2 will say I’m 85 beats per minute. I have reset it. Made sure it in my wrist properly. I held my wrist still etc. This thing just sucks ! I will be going back to the whoop. I just want my money back. I do t see why Fitbit even releases a total piece of garbage like this. It’s also way off on counting steps. And yes my arms are moving. It’s under about 25 to 30%. Every 100 steps I take it counts about 70 I want my money back please.
