Amazfit Helio Ring 2 patent published July 30, 2026, reveals a dual large-electrode ring design that would enable ECG monitoring and BIA body composition measurement — capabilities no subscription-free smart ring currently offers. Zepp Health has confirmed an H2 2026 launch, though an active Oura ITC patent dispute is the key US market risk.
Amazfit Helio Ring 2: Huami Patent Details ECG and Body Composition From One Finger
