RefLevel works together with Android and Apple

Apple Watch

Huawei

Ticwatch

Polar

WearOS by Google:

TicWatch S, E, S2 , E2 and Pro watches see more HERE
Polar M600 on Amazon see more HERE
Huawei Watch 2 see more HERE
Other WearOS watches can be found HERE
We currently do not support GARMIN or SAMSUNG watches, but we will in the future.