The Short Version
Amazfit announced Zepp OS 6 for May, adding voice commands that answer training questions about fatigue and lactate threshold alongside updates to Balance and Zepp Flow.
Zepp OS 6, arriving in May, pushes Amazfit's voice assistant past basic commands into actual training science, answering questions about fatigue and lactate threshold, which is the point where your body switches from burning oxygen efficiently to struggling. Most fitness watch voice tools stop at timers and playlists. Amazfit is aiming at the coach-in-your-wrist idea that premium brands charge a lot more to approximate.