Product information:Screen: 1.28 "240 * 240 full fit full touchBattery: Polymer lithium battery 200 mABottom shell: plastic ABS+PCFront shell: glassBody size: Ø 46.3mm x (thick) 11.92mmSide buttons: supportedDisplay: 240 * 240Dial: 4+1+1Heart rate monitoring: supportedBlood pressure: manual blood pressure detectionSleep: Total sleep, depth, and light sleep timeHistorical records: heart rate, blood pressure, sleep, exerciseAlarm setting: Ring vibration reminder (3 sets)Motion goal setting: Set the number of target steps