Touch Screen Waterproof Fitness Tracker Activity Tracker, smart watch, step counter, fitness watch, fit watch, Compatible with iPhone Android Phone Urgent notice: We released updated APP "smart wristbandapp fitness" in Google play and apple store, some user manual may tell you to download old APP which may has compatibility issue, sorry for the trouble. Please download this updated APP after you receive the tracker. Vibration reminds you of alarm clock and fitness progress without waking up others or disturbing people near you. The tracker works for one week with every full charge. The wrist strap fits up to an 8 inch wrist and is easy to secure. It's compatible with iPhone/iPad (which was released later than iPhone 5) with IOS7.0+ system and Android phone/tablet with 4.3+ system IP67 waterproof means there is no need to take the tracker off during swimming (up to 30 minutes) or showering. It is also totally protected against dust Track steps, distance, calories burned, and monitor how long and well you sleep. With a gentle touch on the screen, recorded data will show in sequence .-There are charging pin on the tracker and the charger, please make sure the charging pin get contacted. -If the tracker get damaged within 30 days of purchase, we will replace it. -If customer want the name to pop up when somebody calling, need to keep the tracker connected with phone via bluetooth. The new tracker screen has no scratch. - Reset it if it freezing. -Need to connect to bluetooth before sync.