Description: * Support APP system: Android 4.4 and above, IOS above 9.0 * Do not use charger above 5V/2A. * Data cannot be used as a medical reference. * The watch cannot touch hot water because hot water will cause the watch display to fog up. USB direct charge quick release New charging method wristband, quick release detachable wristband design, can be charged by plugging in the USB interface, eliminating the trouble of carrying a charging cable and charging stand. Smart life assistantThe watch can monitor steps, calories, heart rate, distance, sleep quality, etc. Of the day. At the same time, it can connect with a smart phone to display information, remotely take photos, retrieve mobile phones and other thoughtful and practical functions to make your life more convenient. Convenient Hold Keep you aware of your exercise intensity and physical condition so that you can adjust your fitness plan timely. Skin-friendly material Wristband wristband is made of lightweight soft TPU and skin-friendly, which adopts lightweight design, no feeling to wear. Main Features * Model Number: D20 Pro Smart Watch * APP: FitPro * Bluetooth Version: Bluetooth 4.0 * Waterproof/Water Resistant: Yes (not for swimming) * Operation mode: touch button * Power on: press and hold function key * Type d Screen: 1.3 inch TFT LCD * Storage (FLASH)16MB+128KB * Compatible OS: Android,IOS * Standby time: 4-7 days normal use; 30 days standby on 230mAh * Functions: Sport, Message, Alarm clock, Blood oxygen, Date, Heart rate measurement, Sedentary reminder, Sleep management, Weather * Notification type: Facebook, Twitter, Wechat ,WhatsApp * Alert Type: Vibration App Language Support English, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Chinese traditional, ect Package Contents 1 x Smart Watch, 1 x Manual, 1 x Box Instructions for use * This product can only be waterproof splashing (cold water), please do not wear it to swim, drop it in water, or soak it in water, etc. * When you first receive the product, please charge it for 5 10 minutes at first if it can't be turned on because its power is already low. * Please contact us if the product has any quality issues, we will reissue for you