1. Bluetooth version: 4.0. 2. Waterproof Rating: IP65. 3. Compatible with Android 4.4 and above, iOS 8.0 and above. 4. APP Name: Day Day Band. 5. Special Features: Health tracker: Heart rate monitor, Sleep management, Pedometer, Calories burned measuring, Steps counting, Distance recording, Sedentary reminder. 6. Other functions: Call/APP message reminder, Time display, Alarm Clock, Shake photograph, Anti-lost reminder, Sports information sharing. 7. Alert type: Vibration. 8. Sensors: 3D acceleration sensor. 9. Display Screen: 0.69 inch OLED Display Dialog. 10. Display: Lift wrist or tap button. 11. Chip model???Dialog 14580. 12. Standard Configuration Battery type: Lithium polymer battery. 13. Battery capacity: 45mAh. 14. APP Support language: Simple Chinese, Traditional Chinese, English, French, German, Russian, Spanish, Ukrainian, Japanese, Italian.