1. Chipset: SYD 8821 176+512K 2. G-Sensor: Support 3. Heart rate sensor: EM7028 4. Low Power Bluetooth 4.0BLE 5. Display: 1.14 inch IPS screen, 240*135 resolution 6. Appearance material: ABS+PC+TPU 7. Battery type: 100mAh Li-Polymer battery 8. Charging time: 2 hours, battery life: 5-7 days, standby time: 15 days 9. Compatible system: Android 4.4 or above, iOS 8.2 or above 10. Main features: pedometer, calorie, mileage, sleep monitoring, heart rate / blood oxygen / blood pressure monitoring, message / call reminder, alarm clock, sedentary reminder, etc. 11. Smart Watch Language: Chinese and English 12. APP - iband, supports languages, Simplified Chinese, Traditional Chinese, English, French, German, Italian, Japanese, Korean, Russian, Spanish, Portuguese 13. Packing list: Watch body, watchband, charging cable, user manual