1. Appearance material: aluminum alloy frame + silicone two-color strap 2. Bluetooth Bluetooth 4.0 version 3. Battery type: polymer battery 4. Battery capacity: 220mAh 5. Charging mode: magnetic charging 6. Charging time: 1-1.5 hours, battery life: standby for more than 20 days 7. Data storage: The bracelet can store 3 pieces of information. 8. Control method: touch 9. System compatible: support Android 4.4, IOS 8.2 and above 10. Support Language: Bracelet Support Language: Chinese (Simplified, Traditional), Japanese, English, French, German, Italian, Spanish, Russian, Portuguese, Polish, Malay, APP Support Language: Chinese (Simplified, Traditional), Japan, Britain, France, Germany, Italy, Spain, Russia, Portugal, Korean, Malaysian 11. Features: 3D
