ID115 is Simple and fashion design, And adopt the USB charge port, even without the charge cable,you can charge the fitness tracker anytime anywhere. When you touch the screen , you will fell amazing.The touch screen is very active. And the function is also very strong. You can track the step /calorie/distance /time power.You can set 12/24 hour system. With the app, there are many notification option. The app is “veryfit 2.0”.There are SMS/call reminder, sedentary reminder etc.. All day monitor and record: Step pedometer, distance, calories consumption, Sedentary reminder: Vibration within the specified time to remind you to leave the seat of the body Auto sleep tracking: Altum HR will automatically monitor the status of your sleep, the statistics of your sleep time, sleep duration, and analyze the quality of your sleep Call + SMS + Whats app + Facebook + Instagram + Twitter reminder: Synchronous access to phone with display name & text. More Functions: Alarm clock, Touch key, Time Clock, Anti-Lost, Phone Finder, Remote Camera, Wrist Sense, USB charging directly and a Super long standby time can work up-to 5-10 days After fully charged..