Monitor your Daily Fitness Level: Monitor your activity levels, track walking distance and calculate calories burned. Achieve the daily exercise targets you set and work towards a healthier lifestyle! Incoming Call Alerts Never miss an important call again. Hamee Band to sense when a call has not been picked up within a certain time, and notify you immediately. Military-Grade Exercise Sensor Hamee's Band accelerometer has the lowest power consumption of any comparable sensor. Its power consumption is less than one-fifth than that of similar accelerometers. Automatic Sleep Monitoring Analyses your Sleep Quality Rest well, rest easy. Measure the length and quality of your sleep. Get action plans from the Mi Band app to improve sleep quality based on data about your deep and light sleep cycles. Sleep most is auto-activated. No manual set up required. Sync with the App to Analyze your Fitness Sync with the Dayday Band app in real-time via Bluetooth Low Energy (BLE) to view your fitness and sleep records. Save up to a year's worth of data and get healthy lifestyle suggestions. Share and compare your data with friends to see who's healthier! 30 Day Battery Life One full charge lasts 20 days, thats 4 times longer than regular fitness bands. Works Perfect with both iOS and Android Smartphones. Also Comes with a Manual.