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Highlights [Long battery] The smart watch only needs 2 hours to charge and can be used for 7-10 days or 15 days standby time, which is much longer than most traditional watches. IP67 swimming waterproof fitness watch: IP67 waterproof, can be worn when washing hands, raining, and swimming. This smart watch can be a good gift choice, allowing people to live a healthier, more active, and more convenient life. [Protecting your health] The advanced heart rate sensor accurately and effectively monitors your heart rate, helping you better understand your health and adjust your lifestyle reasonably. Automatic sleep tracking can monitor your sleep state (deep sleep, light sleep, awakening) and provide comprehe Precision Fitness Watch] The smart watch supports a variety of exercise modes, and can record steps, distance, and calories. After connecting the smart watch with your mobile phone, you can view GPS running data on the App. It will display running statistics and record your exercise rout