Feature: 1.IP67 waterproof rating 2.Waterproof Sports Watch Sleep Monitor :The fitness watch can also tracks your sleep duration consistency with comprehensive analysis of sleep quality data, helping you adjust for a healthier lifestyle. 3.Multi-Function:This Smart watch have many functions Heart rate monitoring,Blood pressure monitoring,Blood oxygen monitoring,Time and date display, step, calorie, distance counting and display with screen,Sleep monitoring sleep time, sleep quality,Call reminder, message, QQ, WeChat, Facebook, Skype, Twitter, WhatsApp, Line, KakaoTalk message push,Screen brightens while,raising,hand,Excessive sittingreminder,Alarm clock reminder,Mobile phone searching,Multiple movement modes ,Call reject,Shake to take photo,Movement objective setting,Fitness information sharing,SUOTA function, upgrade bracelet firmware through APK/APP,Automatically synchronize data to APK/APP,Task reminder,No disturb mode 4.Compatibility and Comfortable: Smart watch Functions available for iOS phones and Android.High quality ABS plastic case,High quality PU plastic strap,mirror surface made of large curved 2.5d glass,304 stainless steel base cover,304 stainless steel watch Clasp. weight:24g strap length:245mm Dial diameter:22mm Dial thickness:12.9mm Package List: 1 x smart wristband