Zeblaze Beyond 3 Plus 1.78 inch Screen Stylish GPS Smart Watch, Support Bluetooth Calling Heart Rate Blood Oxygen Monitor 1. Display: 1.78 inch 368 x 448 pixels AMOLED screen, 326 PPI, up to 1000 nit Brightness, Corning Gorilla Glass 2. GPS Positioning: Integrated GPSBDS, assisted GPS for fast fix times. 2. Sensor: Gravity sensor, proximity sensor, accelerometer. 3. Battery capacity: 350mAh Li-pol battery, charging time: 1.5 hours 4. Battery life: 45 days standby time in power-save modes and 18 days training time in power-save modes, 96 hours training time with full GPS and HR tracking enabled, 653 mins coutinuous voice calling 5. Bluetooth: BLE 5.3 6. Support system: Android 5.0 or iOS 10.0 and above 7. System language: English, Portuguese, Russian, German, French, Italian, Spanish, Turkish, Vietnamese, Kor. 8. APP language: Chinese, English, German, French, Spanish, Italian, Japanese, Russian, Portuguese, Turkish, Thai, Korean, Estonian, Lithuanian, Latvian, Bulgarian, Greek, Polish, Vietnamese, Czech, Slovak, Hungarian, Malay, Indonesian, Hindi, Hebrew. 9. Message Push:English, German, French, Spanish, Italian, Russian, Portuguese, Turkish, Estonian, Lithuanian, Latvian, Bulgarian, Greek, Polish, Vietnamese, Czech, Slovak, Hungarian, Malay, Indonesian 12. Material: One-piece metallic middle frame + stainless steel navigation crown button, durable and comfortable silicone strap 13. Size: Body 46 x 37.4 x 12.5mm, wristband width 22mm, range of circumference 130-235 mm 14. Weight: 42g with wristband, 26g without wristband 15. Charging Method: Magnetic Charging Cable 16. Packing list: Smart watch x 1, Charging cable x 1, User manual x 1 Health Features: 1. Test 3 Health Metrics in 1 Tap: Wrist-based Heart Rate, SpO2(Blood Oxygen) Level Measurement, Stress Level. 2. Activity Tracking: Activity Record, Step Counter, Standing, Move Bar (Displays on device after a period of inactivity of inactivity; Walk for a couple of minutes to reset it), Auto Goal (Learns your activity level and assigns a daily step goal), Calories Burned, Real-t