This is a smartwatch I purchased about six months ago. It has basic functions like LINE notification display, heart rate monitoring, and body temperature measurement. You can also customize the watch face with your favorite wallpaper. I haven't used it much, so it's fully charged (100%). It can last for a week on a single charge. The white replacement band is unused. You can download the app from the QR code in the manual and start using it right away. It works with both iPhone and Android. It's in good condition with no noticeable damage. I recommend it to anyone who wants to try a smartwatch.