Brand: ZEERKEER

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★【All-day Activity Tracking】— Track steps,distance,calories burned,active minutes,you can check daily activity and time on OLED display.
★【Heart Rate Monitor & Sleep Monitor】— Adopted newest HR sensor for accurate and effective heart rate monitoring to help you do exercise scientifically; Accurately monitor your sleep quality every night, and you can use the vibration alarm clock to wake you up without disturbing others.