Specifications: The smart bracelet has intelligent touch screen, which is convenient to use. With bluetooth-compatible 4.0 chip, it has fast and stable connection. It has functions of timer, sleep monitor, sedentary reminder and remote camera, etc. With IP67 waterproof level, you can wear it for sports and in rainy days. It is compatible for iOS 8.0, for Android 4.0 or higher version. Item Name: Smart Bracelet Material: TPU Model: C7 Bluetooth Version: 4.0 Screen Type: OLED Compatible Systems:  for iOS 8.0, for Android 4.0 or Higher Version Waterproof Level: IP67 Battery Capacity: 80mAh (Included) Charging Time: 2 Hours Standby: 15 Days Data Storage: 23 Days Features: Intelligent Touch, Rechargeable, Waterproof Screen Size: 0.96″ Size: 225mm x 20mm x 9.8mm/8.86″ x 0.79″ x 0.39″ (Approx.) Notes: 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. Package Includes: 1 x Smart Bracelet Features: Intelligent Touch, Rechargeable, Waterproof Color: Black