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Black Red Blue M4 Smart Bracelet Band Sports Pedometer Watch Waterproof Wristband Fitness Gym Workout Heart Rate Blood Pressure Features 100% Brand new! Popular men women kids M4 bandsmart watch smart bracelet smartwatch. HD 0.96" OLED display touch screen, easy to read all fitness data. Multifunction design, heart rate monitor, blood pressure, steps counter, calorie consumption, movement distance, incoming call remind, information push, alarm clock, anti-lost remind(phones beyond the scope will remind), remote camera, long time sitting remind, sleep monitor, etc. Heart rate & sleep monitoring. High-performance Integrated optical sensor detects your heart rate and blood pressure. The watch can also monitors your sleep quality, help you develop a healthier lifestyle. All-day activity tracking, accurate real-time records of distance traveled, number of steps and calories burned. Multiple sports modes help you better understand specific activity and physical status during exercise. Remote camera function. Control your smart phone to take photos on your wrist. Sedentary remind. When you are sitting for a longer time than the preset duration, the watch would remind you that it's time for exercise. Call/Message push. If you have new chat messages, it can notify you quickly to touch with your friends, supports Facebook, Twitter, Wechat, What’s APP, etc. Specifications Model Number: M4 band Bluetooth Version: Bluetooth 4.0 Compatible OS: Android, iOS Compatibility: For Android 4.4/iOS 8.5 and above system Display: 0.96" TFT Band Material: TPU Waterproof: IP67 Operation Mode: Touch button Power Input: 5V/1A Battery Capacity: 90mAh Working Time: 4-7 days Standby Time: 15 days Overall Length: 240mm Width: 18mm Thickness: 11mm Attentions 1. Daily life waterproof, can bear water splash, but not suggest wearing when showering, swimming or diving. 2. Please search "Lefun Health" at Apple Store or Android market to download the App, or scan the QR code on the user manual. Many functions need to be achieved via the APP. 3. Please charge for 5-10minutes before using the bracelet. 4. For more guides, please turn to the user manual for help. 5. This bracelet is not a professional measurement tool, it only provides reference data. If you want to measure more accurate data, please buy the relevant professional measurement instrument. Package Included 1 x Smart Bracelet 1 x Charge Cable 1 x Manual