1. Bluetooth version: 4.0 2. Waterproof: IP67 3. Compatible with Android 4.4 and above, iOS 8.0 and above 4. APP Name: Zeroner Health 5. Special Features: Health tracker: heart rate monitor, multiple sports records,sleep management, pedometer, calories burned measuring, steps counting, distance recording, sedentary reminder 6. Other functions: call / message display, time display 7. Alert type: Vibration. 8. Sensors: 3D acceleration sensor. 9. Display Screen: 0.96 inch OLED Display 10. Display: Lift wrist or full touch 11. Chip model: Dialog 14681 12. Battery type: Lithium polymer battery 13. Battery capacity: 75mAh 14. Charger: about 30 mins 15. Working time: about 5-7 days 16. APP Support language: Chinese, English, Danish, Dutch, Finnish, French, German, Italian, Polish, Portuguese, Spanish, Swedish, Korean, Japanese