Description: Bracelet size: 42.3*20.5*14mm Color: Black,Dark Purple, Purple,Red APP: Runmifit Compatible system: Android5.0 (inclusive) or above, IOS9.0 (inclusive) or above FLASH memory: 32Mb Type: TFT Pixel: 80*160 Touch type: Single touch Connection parameters: Bluetooth BT5.0 Battery type: Lithium polymer battery Battery capacity: 85mAh Charging method: USB Magnetic Charge Major 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: 2H Life time: 5-8 days of use, 35 days of standby Wristband size: Total length 175MM, adjustable length 105-165MMAppearance material: Body: Plastic Wristband: TPU