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1. Application monitoring: Smart Brachet automatically records the career clues and physical aptitude data through the application, leaving traces for each exercise, helping you scientifically improve the efficiency of the exercise. 2. Sleep monitoring: automatically monitors 4 sleep stages, sleep duration statistics, deep sleep relationship, light sleep continuity and other indicators; The application admits 4 topics to change, highlighting personal aesthetics. 3. Light wear: the design of the body without 22g screen​ fits the wrist, which uses it is almost not notable. Not only is it comfortable, but it also improves the accuracy of data monitoring. 4. Super long battery duration: efficient low power design, with a waiting time of up to 40 days, without the need for frequent load, really achieving long -term continuous health management. 5. Water printing 10m: Support for the level of waterproofing of 10 m, easy to deal with swimming, diving, surfing and other water sports, daily rain, rain shower, the bath is also very easy. Specification: Element​ Type: Smart bracelet Material: silicone + aluminum alloy Key: key battery capacity: 150mah, drums (silicone battery + aluminum battery) Waterproof level: 10m waterproof Use: 20-30 days Load method: magnetic absorption CPU model: for real real ones. To use: See the instruction manual Packaging list: 1 x smart bracelet 1 x band strap 1 x load cable 1 x User manual Notice: