1. CPU: REALTEK (Realtek) RTL8762DT 2. Flash: 128Mb 3. Accelerometer: Silan Micro SC7A20 4. Bluetooth: Bluetooth LE 5.0 compatible with 3.0 5. LCD: 1.32 inches, IPS high-definition screen, resolution 360x360 6. Heart rate sensor: HR3301 7. Charging method: 2PIN thimble magnetic charging 8. Waterproof grade: IP67 waterproof 9. Battery capacity: 235mah 10. Compatible system: Android 4.4 or above, ios 8.0 or above 11. Setting language: Support language switching, including Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese (factory default English) 12. Languages ​​supported on the watch side: Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese (factory default English) (the language can be set on the bracelet) 13. App message push language: Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese 14. APP (following the phone): Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese 15. Functions: Bluetooth call, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, pedometer calorie, sleep monitoring, alarm clock reminder, stopwatch, bracelet brightness adjustment, sedentary reminder, incoming call SMS push, message reminder, health sharing, incoming call rejection, remote music, remote camera, dial, Siri dial, find mobile phone, find bracelet, dial switch, multi sport modes (walking, running, mountaineering, cycling, basketball, badminton, football, elliptical machine, yoga, table tennis, rope skipping, tennis, baseball, rugby, hula hoop, golf, long jump, sit ups, volleyball), etc. 16. Product size: diameter 46x10.6mm