iMusi Wireless Waterproof Heart Rate Monitor Fitness Tracker Activity Trackers Pedometer Bluetooth Watch Smart Band Fitness values in everyday life and measure the training via several sensors. Smart wristband with OLED screen, show the steps, Calorie, Walking distance and sleep quality clearly. A considerated Health Guardian Multi Functions: Heart Rate Monitor, Call Name Display and Reminder,Pedometer, Calories Measure, Distance, Sleep Monitor, Call Reminder,Anti-lost. alarm to remind of getting up, drinking or sedentariness Compatibility: requires Android 4.4 or above, iOS 7.1 or above,Bluetooth 4.0 or above. download APP "Veryfit 2.0" from Apple Store or Google Play. Be informed at a glance about news, incoming and missed calls in the tied Mobilgeraet.