U3 1.57 Adult Smart Watch Sport Fitness Heart Rate Blood Oxygen Monitor IP68 Waterproof Adult Smartwatch for IOS Android APP Qwatch Note:(iOS system search Qwatch in the store to download and install; Android system Google play search Qwatch to download and install) Specification: 1.Working Time:5-7days 2.Standby Time:About 30days 3.Charging time:2 hours 4.Screen size (inches):1.57inch 200*320 Strap can be replaced Strap can fit watch Function: 1.Heart rate detection 2.Blood oxygen test 3.Time,Pedometer,CalorieConsumption,Distance Calculation,Sleep time ,/Off dispaly 4.Standard exercises functions (walk,Run,on foot,Swing,rope skipping,work out.) 5.Sleep detection (Sleep time ,Sleep quality) 6.Calls to remind,SMS Reminder,Third-party messaging 7.reminder :Multilingual push 8.Clock alarm 9.Task Reminder (Sedentary reminder) Support Language: Russian,Portuguese,English, Japanese, Korean, GerAdult, Spanish, Italian, French, RoAdultian, Arabic, Greek, Dutch, polish, Turkish, Vietnamese, Thai, Indonesian U3 NEW Fashion,Larger Vision 1.57inch diaplay screen,the pioneer in industry | Resolution ration 200*320 | Exercise heart rate monitoring | Blood oxygen monitoring | long battery life| More choice for you Easy dial replaceAdultt,Show personalized life Smart 24-hour Heart Rate Monitoring More Health Care Portable blood Oxygen Monitoring,Body Status Within Touch Several Professional Exercise Patterns Make little Progress Every Day Scientific Sleep Monitoring Help You Sleep Well Smart Intimate Reminder Enjoy Convenient Life Magnetic Strong Charging Convenient Life IP 68 Waterproof Live a Carefree Daily Life Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store