TEZER Fitness Tracker with Heart Rate Monitor， Sleep Monitor Tracker for Men and Women，3ATM Waterproof Pedometer Watch…
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【24/7 Heart Rate & Sleep Monitoring 】Uses the latest HR sensor to continuously automatically track your heart rate, ; it automatically tracks your sleep time and sleep quality (deep sleep, light sleep, awake sleep) at night, analyzes your sleep quality, helps you to get a more healthy lifestyle.
【Activity Tracking】 The activity tracker records all-day activities like heart rates, steps, distance, calories burned, etc. and keep a weekly activity summary in the READsport app to help you review your goals.