The item has been with me for over two years. Technically, it works the same as the first day I bought it, its battery lasts from one day to a day and a half. The watch is very powerful, you can save voice notes and pictures on it and play them without a phone, it plays everything, even YouTube. It calculates burning calories, steps, sleep, stress, and body fat percentage. It accurately calculates your sports activity, including walking, weightlifting, swimming, and Swedish exercises. Its box is available. Unfortunately, the cable is not with me, it is lost.