K1 Fitness Tracker Watch IP68 Waterproof Activity WirelessSmart Bracelet With Continuous Heart Rate Monitor Step Calorie Sleep Counter Bluetooth Wristband Pedometer Sports Smart Band (Black) CHEMAI

Display 0.66 inch OLED display Resolution 64 x 48 Main control chip NRF518822 Memory 32 KB G - BSENSOR sensor The battery capacity is 105mah Standby time is 10 days Charging mode three-point contact charging Compatibility: Android 4.4 / iOS 8.0 or above Tape material: silica Voltage: 4.2 V Waterproof: IP67 Ability: 7-10 m Bluetooth version: bluetooth 4.0 Display: led Language: Chinese, English, German, French, Italy, Russia, Japanese, Portuguese, traditional Chinese, Spanish, Korean, etc Functions: clock, push message, speed meter, Passometer, social media password meter, sleep tracker, tracker heart, remote control, etc Style: sports

size;24.8*24.2*1.1

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