HARD

Recording activity: When you wear smart device to sync to APP, you can accurately record your steps, distance and calories burned, historical sleep statistics, and heart rate statistics for the day.
Record exercise: When you are connected to the app after the smart device is turned on, you can accurately record the pace, time, distance and movement track of each historical exercise, and improve the effect of running and walking.
Heart Rate Monitoring: Use smart device synchronization to analyze heart rate charts in your application. Includes a chart of historical heart rate data, a chart comparison of the maximum heart rate data for a week, and a 24-hour average data graph to see changes in your heart rate interval at any time. To manage stress and exercise effects.
Sleep monitoring: Use smart devices to monitor the time of waking, light sleep and deep sleep every night. After synchronizing APP, you can count historical sleep data and analyze the comparison of sleep patterns over the past 7 days.
Message reminder: When you wear the bracelet and sync with the app, you can choose to open the message push, alarm reminder, sedentary reminder, drink water reminder to the bracelet in the app. In order to achieve a regular life.
**Precautions:**
1.The sports function uses GPS positioning.Running the GPS function continuously in the background may significantly reduce the battery power.
2.HARD has been connected to HealthKit, which can sync your step data, sleep data, and exercise data to [Health].