Compatible Systems: Android 4.4, iOS 8.5 or later, this FitPro adult fitness tracker and health monitor features tempered glass single touch. The main functions include, call reminder push, SMS reminder push, exercise record (steps, mileage, etc.), sleep monitoring, calorie calculation, low battery reminder, fast charge, ultra-low power consumption, heart rate, blood pressure, vibration, exercise mode and remote Take control of taking pictures.