1. Main chip: HS6621PG 2. Memory: 128M 3. Bluetooth: AB5376A2 V5.2 4. Sensor: 3 axis G-sensor 5. Display: 2.02-inch TFT color screen 240x296 resolution 6. Battery type: 200mAh wireless charging 7. Endurance time: 25 days of standby, normally use for about 7 days 8. Waterproof level: IP67 9. Support App: Wearfit Pro 10. System requirements: Android5.0 or above, iOS10.0 or above 11. UI language: simplified Chinese, traditional Chinese, English, French, German, Japanese, Spanish, Italian, Russian, Malay, Portuguese, Turkish, Greek, Latin, Indonesian, Thai language, Thai language , Arab, Polish, Dutch, Romanian, Persian 12. APP supports language: simplified Chinese, traditional Chinese, English, French, German, Japanese, Spanish, Italian, Korean, Russian, Thai, Czech, Portuguese, Indonesian, Arabic, Turkish, Greek, Greek language , Eshanian, Bulgarian, Latvian, Lithuanian, Romanian, Serbian, Slovakia 13. Functions: steps, distance, calories, breathing training, multiple sports modes, heart rate/blood pressure/blood oxygen measurement, sleep monitoring, sedentary reminder, call reminder, information push, music playing, voice call, alarm clock, stopwatch, small games, calculators, weather, raise to wake, dial market, smart division display, time display, Alipay, NFC, voice assistant, etc. 14. Material: zinc alloy body+IML bottom shell+silicone watch band 15. Product size: 4.5x4.0x1.02cm, watch band: 26x2x0.25cm