E13 1.28 inch IPS Color Screen Smart Watch, IP68 Waterproof, Steel Watchband, Support Heart Rate MonitoringBlood Pressure MonitoringBlood Oxygen MonitoringSleep Monitoring About Product 1. Battery capacity: 150mAh 2. Waterproof rating: IP68 3. Bluetooth version: BLE 5.0 4. Waterproof grade:IP68 5. APP:Tefiti 6. System: Android system 4.4 version or above,iOS system 8.0 version or above 7. Bracelet languages:Simplified Chinese, Traditional Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Hindi, Polish, Russian, Dutch, Turkish, Indonesian, Czech 8. APP support languages:Simplified Chinese, Traditional Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Hindi, Polish, Russian, Dutch, Turkish, Indonesian, Czech Function 1.24 exercise modes, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring 2.Time and date display, step count, calories, distance with screen display 3.Sleep monitoring (sleep duration, sleep quality) 4.Standard motion function (step count, distance, calories), GPS track motion 5.Phone calls reminding, SMS, QQ, WeChat, nailing, wang zhen, sina weibo, lnstagram, linkeln, Snapchat, bursts, Facebook, Skype, Twitter, WhatsApp, Line, KakaoTalk message content delivery 6.Stopwatch, look for mobile phone, raise hand to light screen, sedentary reminder, alarm clock reminder,drink water reminder, take medicine reminder, shake photo 7.WeChat sports access, sports goal setting, fitness information sharing 8.Music control,Weather, smart alarm clock, raise hand light screen, light screen time, search phone, search bracelet, reject call, shake take photos, do not disturb mode