Made with craftsmanship, it is and durable, easy to operate, can better facilitate your life, and bring you a better experience. Practical and great functions, such as fitness , alarm clock design, waterproof, etc., which is practical to teens needs. Features -Material: Plastic, silicone, electronic components. -Size: About 24.00X4.00X1.50cm/9.43X1.57X0.59in. -Note: 50M Waterproof. -Power Supply: watch comes with a USB interface, USB plug and charge instantly. - No need to link your . You don’t or download an , just bring a watch to track smartly. - Vibration alarm clock design. Whether in the classroom or in the dormitory, the vibration design will not disturb others, which is very suitable for students. - The reasonable design makes it more efficient and professional, and can help you perform accurate . - Mainly used for health monitoring, mainly including exercise step record, and other information. - The appearance is simple, stylish and versatile, and can be applied to most occasions. Package list: 1 1 x manual