Zeblaze Btalk 2 Lite 1.39 inch Screen IP68 Smart Watch Supports Voice Calling Health Monitoring 1. Display: 1.39 inch 360x360 IPS color screen 2. Chip: Realtek 8763E 3. Waterproof grade: IP68 4. Battery capacity: 220mAh, charging time: 1.5 hours 5. Battery life: 14 days for typical usage mode and 7 days for heavy usage mode 6. Bluetooth: 5.2 7. Support system: Android 4.4 or iOS 8.0 and above 8. APP: Da Fit 9. System language: English, Portuguese, German, Spanish, French, Russian, Italian, Korean, Ukrainian, Arabic, Japanese, Simplified Chinese, Traditional Chinese 10. APP language: English, Portuguese, Russian, Spanish, Japanese, Korean, Arabic, Bulgarian, Czech, Danish, German, Finnish, French, Hindi, Croatian, Indonesian, Italian, Norwegian, Dutch, Polish, Pashto, Romanian, Swedish, Thai, Turkish, Ukrainian, Vietnamese, Simplified Chinese, Traditional Chinese 11. Sensor: Wrist Heart Rate Monitor, Pulse Ox Blood Oxygen Saturation Monitor, Proximity sensor, Accelerometer 12. Health Monitoring: Wrist-based Heart Rate (Constant, Every Minute) , Daily Resting Heart Rate, SpO2(Blood Oxygen) Level Measurement, Blood Pressure, Breathing TrainingCycle Tracking, Sleep Score and Insights, Calorie Burn Tracking 13. Daily Smart Features: Smart Notifications(Call, Text, Gmail and Smartphone App Notifications), Weather Sync(Check weather in the next four days) , Controls Smartphone Music and Camera, Find My Phone and Watch, Do Not Disturb Modes, Sedentary alert, Calculator, APP Download 14. Other functions: 100+ Sport Modes, Activity Record, Step Counter, TimeDate, Stopwatch, Timer, Alarm 15. Material: Plastic case+aluminum alloy button+fluoroelastomer strap 16. Size: Dial 45x45x10.4mm, Wristband width 22mm, range of circumference 130-235 mm 17. Weight: 36.3g (with wristband) 18. Packing list: Smart watch x 1, Charging cable x 1, User manual x 1