GoKawiilAmazfit updates Helio Ring with HybridCharge recovery tracking and better sensors
Amazfit has pushed firmware version 2.9.0.1 to its Helio Ring, replacing the device's Readiness feature with a new system called HybridCharge that shows all-day energy status graphs in the Zepp app. The update also improves heart rate tracking accuracy and adds automatic stress measurements taken every five minutes.