Watch, Health and widgets
Mettle on Apple Watch
Rep tempo, per-rep haptics, live heart rate, and the rest timer on your wrist.
The Watch app is a companion to a session your iPhone owns. It times the lowering and lifting phase of each rep, gives you a short distinct haptic on every completed rep, logs sets, shows live and average heart rate, and runs the rest timer.
A real HealthKit workout session runs in the background, which is what records heart rate and active energy properly rather than estimating them.
Still need a hand?
View MettleEmail support@obsidianridgelabs.com, a real person will reply.