Strap Material:TPEScreen:OLED64*32Color:Black,Blue,Purple,Light Red,GreenSensor:G-SensorChip:NordicVibration:Real time vibrate to remindWaterproof:life waterproof (Sweat proof,rain proof,water drop proof)Waterproof Level: IP67Battery:50mAh Li-polymer battery (included)Standby Time: 7-10 daysCharging:USBCharging Time:About 1 hourWeight:18gFeatures:1. Multifunctions: real-time clock, pedometer, calories counter, distance counter, sleep monitor, alarm alert.2. Daily Activities Recording: you can check daily activities including steps, distance and calorie consumption in the app.3. Anti-lost: when the wireless link is disconnected or your phone is out of the distance range, the watch will alert.4. Message Reminding: when there is the message, incoming call on the connected phone, the watch vibrates to remind you.5. Sleep Monitoring: the watch can recognize your status automatically and monitor the whole sleep progress by analyzing the deep sleep and light sleep hours.Package Include:1 x watchNotes:1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors.2. Due to the screen difference, the color may be a little different from what you expect, please allow it.