EX103 1.55 inch Color Screen Smart Watch, Support Bluetooth Call Heart Rate Monitoring About Product 1. Sensor:Sensitive core micro MSA3001 2. Bluetooth Version: BLE 3.0+5.2 3. Battery capacity: 350mAh 4. Bracelet memory:Flash:128MB 5. Standby time: About 20 days 6. Working time:About 10 days 7. Charging method: Wireless charging 8. APP: wearfit pro 9. APP supports languages: Android: Simplified Chinese, English, Farsi, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional Chinese, Czech, Turkish, Greek, Latin, Romanian, Dutch, Vietnamese, Danish Burmese, Hindi, Hebrew, Ukrainian, Malay, Indonesian IOS: Simplified Chinese, English, Farsi, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional Chinese, Czech, Turkish, Greek, Latin, Romanian, Dutch, Vietnamese, Danish Burmese, Hindi, Hebrew, Ukrainian, Malay, Indonesian 10. Watch supports languages: Default English: Simplified Chinese, English, Farsi, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional Chinese, Czech, Turkish, Greek, Latin, Romanian, Dutch, Vietnamese, Danish Burmese, Hindi, Hebrew, Ukrainian, Malay, Indonesian 11. System requirements: android5.0 ios10.0+ Main Function 1. Heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. GPS track motion,bracelet SOS common contact function,stopwatch, find mobile phone, meet the standard reminder, drink water reminder 5. Phone calls reminding, SMS, QQ, WeChat, nailing, sina weibo, lnstagram, linkeln, Snapchat, bursts, Facebook, Skype, Twitter, WhatsApp, Line, KakaoTalk message content delivery 6. Raise the hand to light the screen, sedentary reminder, alarm clock reminder, shake to take a picture 7. Weather, do not disturb mode,Wechat sports access, sports goal setting, fitness information sharing