HeHa Waterproof Sport Fitness Bracelet Activity Tracker with Heart Rate Monitor Calorie Burned Counter Breathing Training Blue Waterprrof - You can expect a fitness tracker to be a bit more resilient than your average smartwatch, able to handle the bumps, shakes and most importantly, WATER. The grand of waterproof about this smart wristband is 10M water resistance(1 ATM), Puddle, stream, beer cooler and splash rated - Protected against water immersion - suitable for indoor/outdoor activities with rain, snow or water splashes, hot/cold water Keeping fit - The HeHa Dao fitness tracker combine activity tracker, calorie counter and step tracker together. Tracking and storing activity data of recent 7 days then sync data to HeHa mobile app via bluetooth. It has a screen to display the records of the number of steps you have walked and calories that you have burned. It supports IOS 7 / iPhone 5 or Android 4.0 above Sleep monitor - A good night's sleep varies from person to person, and our sleep patterns change as we age. And beyond amount of sleep, it's also important to look at quality of sleep and whether you complete sleep cycles. The HeHa Dao activity fitness tracker will monitoring your sleep and analysis your sleep quality so help you know your sleep Comfortable hand-feel activity tracker to wear - this wristband is made of a flexible, anti-allergic, durable elastomer material. You can keep this companion with you at all times. Whether you prefer a hiking or wrist-worn, HeHa Dao fitness tracker is easy and comfortable smart wearable device. Fits wrist circumference 7.87 inches (200mm) or small Community - Fun with you friends with our group community to share with them and even a challenge. Have a Personal Trophies, earn a variety of trophies after reaching your personal goals to remain motivated. Whether you start your group or join a new group, HeHa App helps you to meet a new friend and keeps you and your friends active through team battle.