Features: Accurately track all day activity, including steps, distance, hourly activity, active minutes and calories burned. Automatically tracks your sleep duration and consistency with comprehensive analysis of sleep quality data. Convenient to receive call, calendar, SMS and SNS and other app notifications on your wrist(watch), you will never miss the messages that matter. No charging cable and dock needed. it is asy to charge with any usb block and computer. Monitor your heart rate, blood pressure, and blood oxygen throughout the day via your for smart watch. IP67 waterproof activity tracker allows you to wear it in the rain or when washing hands. (Don'for t wear while swimming). Would be a wonderful gift for yourself, parents, or sports loving friends. Specifications: Type:C5 Fitness Tracker for Smart Watch Colors: Black or Red or Pink or Green or Blue or White or Purple Weight:24g Size: Adjustable. (Pls See the Pictures) Material:PcandTPU Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Package includes: I Piece C5 Fitness Tracker 1 Piece User Manual