How does the watch count kcals?

Csgpatr

I didn't wear the watch all day. By 15.30, it had recorded 1238 kcals, 0 steps, 0 kms, 0 hrs. What is going on?

tfarabaugh

If you were alive and breathing, digesting, etc. then you were burning calories and that is what a 24/7 activity tracker is supposed to be tracking. It computes a BMR based on your gender, height, weight, etc. and takes this along with steps and sports activities to come up with calories burned. Between midnight and whenever you woke up you burned 1238 calories just being alive. This is exactly what it and all other activity trackers are designed to do. In my experience it is generally accurate (or as accurate as BMR based calculations can be as they are based on averages).

tfarabaugh

If you were alive and breathing, digesting, etc. then you were burning calories and that is what a 24/7 activity tracker is supposed to be tracking. It computes a BMR based on your gender, height, weight, etc. and takes this along with steps and sports activities to come up with calories burned. Between midnight and whenever you woke up you burned 1238 calories just being alive. This is exactly what it and all other activity trackers are designed to do. In my experience it is generally accurate (or as accurate as BMR based calculations can be as they are based on averages).