Happyfun Smart Bracelet Fitness Tracker Heart Rate Monitor Sleep Tracker Step Counter Calories Pedometer Activity Tracker Smartwatch  (sliver Strap, 1)

Heart Rate Bracelet: The smart bracelet supports 24-hour continuous heart rate tracking, Whether in daily life or during exercise, the health ring can always keep monitoring your hear rate, allowing you to better understand your physical condition and make corresponding adjustments. Smart Sleep Tracker: Built-in automatic sleep tracker can monitor your sleep duration at night and provide a comprehensive sleep quality analysis (deep sleep time, light sleep time, and wake-up time), allowing you to develop good sleeping habits. All-day Tracking Fitness Tracker: Track your steps, calories consumption and distance automatically. Turn on the sport modes in the App, the activity tracker will additionally track your sport route, activity time and heart art rate during exercise, this allows you know when you should save motivation or keeping exercise hard, also let you know the real-time sport performance. IP68 Waterproof Bracelet: IP68 waterproof technology support swimming, washing hands, cold showering and rain, giving you convenience during daily life. Note: please keep away hot water or steam. No Subscription Fee & Compatibility: The APP does not charge any subscription fee, and suit for smart phone with Android 5.0 or iOS 10.0 and above system