Applicable platform: fully compatibleCompatible platforms: Android, IOSApplicable crowd: business, public, adults, the elderlyScreen size: 1.28Dimension: 44.6 * 44.6 * 11Material: carbon fiberBattery capacity: 200MAHHow to wear: WristbandOperation mode: touch type + button typeInterface: USB 2.0Additional functions: step counting, calling, social entertainment, intelligent reminder, health monitoring, information push