Specifications 1. Screen: 1.81 inch TFT HD glass, 240*286px 2. System: Android 5.0 and above, IOS 9.0 and above 3. Bluetooth version: BLE5.0 4. Chip: BK32886 5. Heart rate: SC7R31 6. Battery: 230mAh 7. Memory: 64MB 8. Standby time: 10-15 days 9. Battery life: 3-7 days 10. Charging way: magnetic suction charging 11. Motor: Built in, vibration reminder 12. Material: zinc alloy + ABS 13. Sensor: SC7A20 14. Waterproof levelIP67 life waterproof (not for hot water bathing! not for swimming!) 15. APP: JYouPro 16. Watch size: 36.8x48.78x10.3mm 17. Watchband width: 22mm 18. Watch net weight37g Functions: 1. Sports mode: walking/running/cycling/jumping/rope/badminton/basketball/football/swimming/yoga/table tennis/tennis 2. Health monitoring: heart rate measurement, blood pressure measurement, Sleep information, body temperature 3. Message push: incoming call, message, WeChat, QQ, Facebook, Twitter, Instagram, Skype , WhatsApp, Line, Kakaotalk, Gmail, Messenger, Telegram, Viber. 4. Exercise record: step count, exercise time, exercise mileage, calorie consumption, upload APP to save exercise sleep data 5. Others: rolling wrist bright screen, time display, remote photography, music control, stopwatch, calendar, calculator, weather information, bright screen time, brightness adjustment, AI voice assistant, flashlight, Do not disturb setting Language 1. Bracelet Language: Chinese, traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy and Portugal 2. APP and information push languages: Arabic, Bulgaria, Czech Republic, Denmark, Germany, Greece, Spain, Finland, France, India, Croatia, Hungary, Indonesia, Italy, Hebrew, Japanese, Korean, Malay, Norway, Netherlands, Poland, Pushtu, Portugal, Romania, Russian, Slovakia, Slovenia, Sweden, Thailand, Turkey, Ukraine, Vietnam, Chinese, English Traditional Chinese Importance: 1. Please keep the watch in close contact with your wrist, and keep it wearing for more than 10 minutes when you measure body temperature, otherwise it will cause a larger error. 2. This smart wristband is not a real medical device, All health data may have a bit errors compared with medical devices, only for reference.