The size of the bracelet is 47.8*38.5*10.9mmWeight (Weight) 37gColor: Black, silver, goldMajor function: Bluetooth call, voice control, interest screen on, stock market, games, blood sugar, NFC, stress test, breathing training, calendar, world clock, computer, password unlock, custom dial, weather forecast, music control, step counting, heart rate, sleep, sedentary, mileage, blood oxygen, blood pressure, search, calories, message push.The screen size is 2.01 inchesPixel (Resolution) 240*296Touch Type Full-screen touchbluetooth：BT5.3Heart Rate (Heart Rate) LC11SBattery Type (Type) Lithium polymerCapacity: 250mAhCharging Method Magnetic chargingWaterproof Level IP67The Charging time is about 2HLife time (Life time) about 5-7 days, standby 30 daysProduct language (Product English, Simplified Chinese, Turkish, Russian, Spanish, Italian, Portuguese, German, French, Dutch, Polish, Czech, Hungarian, Slovak, Japanese, Danish, Finnish, Norwegian, Swedish, Thai, Hindi, Vietnamese, Arabic, Indonesian, Hebrew, Bengali, Romanian, Croatian Asian, Malaysian Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.