1. Compatible system: Android 5.0 or higher IOS9.0 or higher2. FLASH memory: 512KB+16M3. Screen size: 1.69 inch TFT screen, pixel: 240*2804. Bluetooth: BT 5.05. Capacity: 3.7V/180mAh6. Charging method: charging clip7. APP language: Support English, Simplified Chinese, Traditional Chinese, Dutch, Russian, French, German, Portuguese, Spanish, Turkish, Japanese, Polish, Arabic, Malaysian, Thai, Czech, Slovak8. Watch languages: Simplified Chinese, English, French, Spain, Portugal, Russian, German, Netherlands, Turkey, Malaysia, Poland, Czech Republic, Slovakia9. Functions: step counting, distance, calories, sleep monitoring, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, search device, Bluetooth call, music control, SMS reminder, alarm clock reminder, sedentary reminder, multi-sports mode, etc.10. Waterproof rating: IP6711. Charging time: 1.5 hours12. Life time: 3 days13. Appearance material: zinc alloy + ABS14. Wristband size: total length 226.6mm, width 20mm15. Product size: 51x40x12mmSpecifications:Hardware parameter:Bluetooth-compatible : Bluetooth 5.0G-Sensor：3D-gsensorSystem version:Android above 5.0 or IOS above 9.0Software function:Custom wallpaper, Bluetooth-compatible call, music control, social APP message reminder, incoming call reminder, SMS reminder, multi exercise, alarm clock reminder, sedentary reminder, search for mobile phone, music playback, stopwatch, step counting, distance, calories, sleep monitoring, heart rate Monitoring, blood pressure, blood oxygen, searching equipment, language switching, and raising your hand to brighten the screen.Dial: Dial the dial to make a call.Application Push: If the SMS reminder function is turned on in the connected state, the bracelet will vibrate when there are messages such as SMS WeChat, QQ and QQ,Facebook.Language:Bracelet supports languages : English、SC、Netherlands、Russian、French、German、Portuguese、Spanish、Turkish、Polish、Malaysia、Czech、SlovakSupports languages: English、SC、TC、Netherlands、Russian、French、German、Portuguese、Spanish、Turkish、Japanese、Polish、Arabic、Malaysia、Thai、Czech、Slovak