Description:Bracelet size: 42.3*20.5*14mmColor: Black,Dark Purple, Purple,RedAPP: RunmifitCompatible system: Android5.0 (inclusive) or above, IOS9.0 (inclusive) or aboveFLASH memory: 32MbType: TFTPixel: 80*160Touch type: Single touchConnection parameters: Bluetooth BT5.0Battery type: Lithium polymer batteryBattery capacity: 85mAhCharging method: USB Magnetic ChargeMajor function:1.Health monitoring (sleep monitoring, 24-hour heart rate monitoring, blood pressure, blood oxygen)2. Sports monitoring (step counting, calorie consumption, distance, 16 sports modes, GPS track records)3. Other functions (customized watch change, call reminder, drinking water reminder, sedentary reminder, SMS reminder, women's health, alarm clock reminder, remote control camera, etc.)4. Software message push (Facebook, Twitter, line, WeChat, etc.)5. The bracelet supports the display of Chinese, English, Japanese, German, Italian, French, and Western languages. The APP supports languages ??of dozens of countries and regions around the world.Other Partmeter:Waterproof Level: IP68 (waterproof daily protection, such as washing hands, raining. Can not be used in water swimming, diving, steam, hot springs, hot water and other places)Charging time: 2HLife time: 5-8 days of use, 35 days of standbyWristband size: Total length 175MM, adjustable length 105-165MMAppearance material: Body: Plastic Wristband: TPU