Brand Name: PANFUSystem: Android WearSystem: Proprietary OSSystem: Android OSSystem: iOSSystem: Wear OSSystem: Color OSSystem: HarmonyOSSystem: FreeRTOSSystem: Wacth OSSystem: Zepp OSSystem: DuWearSystem: Tizen OSFunction: PassometerFunction: Fitness TrackerFunction: Sleep TrackerFunction: Mood TrackerFunction: Message