Thank you for looking m(_ _)m I purchased this in April 2017 for running, but I ended up using a smartwatch more and didn't use it much. I used it for about 3 years, from 2017 to 2019, only for running and interval training. I wore a different watch for everyday use. After that, I basically kept it in its box and occasionally charged it with solar power, so it is still working without any problems. There are some minor scratches on the glass surface, but I believe it is in relatively clean condition. As it is a used item, I would appreciate it if you would purchase it with your understanding. Thank you.