B08SC7WG41 Dray Smart Wristband, Smart Watch T40, 1.70 Inches HD Fully Rounded Screen IP67 Waterproof with Bluetooth Call Heart Rate Movement Health, for Woman and Man Compatible iOS with Android (Color : Gold)

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One-Button Heart Rate Monitoring: built-in dynamic optical heart rate sensor with high performance and low power consumption, which can quickly measure your heart rate, blood pressure and blood oxygen data and remind you in time; Smarter and more accurate heart rate detector can monitor your heart rate anytime and anywhere 24 hours a day.
Sleep Detection, Adjustment Of Work And Rest: Through the detection of posture, you can monitor your sleep and sleep quality, deeply understand, deep sleep, shallow sleep, awake, etc., and you can also know your sleep history through APP.
Low-Power Dual-Mode Chip, Long Battery Life: 30 days standby, daily battery life is 3-6 days, and standby state is about 20 days, so that you can no longer worry about power when you travel, and explore more exciting things; IP67 waterproof for life and enjoy sports fun: it has IP67 dustproof and waterproof ability to meet the waterproof requirements of daily sports life; It can cope with sweat or small raindrops.
Call, SMS, APP Notification: After the watch is connected to the mobile phone via Bluetooth, the phone, social, APP push and other information are synchronized with the watch in real time, without missing any important information, such as call reminder, message reminder, sedentary reminder, alarm clock reminder and photo control.
Message Push And Reminder Check: Facebook, Twitter, SMS, etc. messages can be directly pushed to the watch, and the vibration reminder can be synchronized. The weather forecast can be checked at any time without looking up on a mobile phone. You can check it when you travel without worry.