Package contents, 1 smart bracelets. Can be shared with family members. How to get smart with a tracker that doubles as a timeless accessory and features a vibrant color display Get better sleep with in-app sleep tracking and sleep scores to power up your day When your heart rate and blood pressure are too high, the vibration reminds you to pay attention. Maximize your physical activity, understand resting heart rate trends and better estimate calorie burn with 24/7 heart rate tracking Tune your body with health metrics like breathing rate, heart rate variability and more A variety of sports modes, wear the bracelet to exercise, and the bracelet can record all your sports data. When you sit for a long time, it will remind you to get up and move around. Awaken to a better physical state. Bracelet alarm clock, when the set alarm clock arrives, it will wake you up with vibration. More comfortable and soft, without disturbing the people around you. Find the location, as long as the bracelet matches the mobile phone, you can immediately retrieve the bracelet. Caller ID, information display, a variety of message reminders, do not miss any information. Shake to take a picture, pair it with your phone, go out, and take pictures whenever you want. Enjoy up to 5 days of battery life without stopping charging (varies with usage and other factors) Connect your band to your phone's GPS and see real-time pace and distance on your wrist < p>CARE INSTRUCTIONS: (1) Give your wrist a break: If you experience any discomfort or irritation, loosen the strap, if it still persists, remove the device to give your wrist a break. In general, it's always important to rest your wrist regularly after taking the device off for an hour or so after prolonged wear. (2) Don't wear it too tight: Make sure your strap is not too tight. Wear the strap loose enough so that it can move back and forth on your wrist. (3)Keep it clean and dry: Clean your strap and wrist regularlyespecially after exercising, sweating, or washing your hands. Do not use hand sanitizer, body wash, dish soap, hand sanitizer, cleaning wipes, household cleaners, or other similar cleaning products to clean the watch band or device, as these products are difficult to remove and may get caught under the watch band and irritate you skin. Instead, use only fresh water and a soap-free cleaner such as Cetaphil to clean the strap.