B1 Smart Fitness Bracelet is a NYZ Fitness Tracker with smart bands and have continuous heart rate monitor, blood pressure, blood oxygen, pedometer, distance, calories, sleep quality measurement, call reminder, message calls notifications, alarm clock, sedentary reminder, anti-lost, find the phone/bracelet, remote camera control, IP68 level water-resistant, no worry about hands washing, splashing, sweating, rainy. However, it should not be used for diving and shower, and should be used at normal temperature and pressure.

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Heart Rate Monitor & Sleep Monitor- Fitness watches can detect your sleep and analyze your sleep quality with deep sleep, light sleep, and getup time. Adopt the latest HR sensor for accurate and effective heart rate monitoring.
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Direct USB Charging- Fast charging the bracelet by USB port without cable and the 80mAh rechargeable battery can working standby time for 5 to 7 days; APP support Above Android 4.4, Above iOS 8.0, Bluetooth 4.0.
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Call & Message- See Calls and Messages on Your Wrist, Receive call, calendar, SMS, and SNS (Facebook, WhatsApp, Instagram, and Twitter) notifications on display, never miss important messages.
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Professional Services- Any question, please feel free to contact, we will reply within 24Hrs, and we will try our best to solve it, within 1 year, we will take full responsibility for any product quality the problem, High-quality guarantee.