This product was purchased new at the Apple Store in September 2020. There are no particular performance issues. Charger included. I am selling it because I am upgrading. If you are worried about the battery running out, it is also recommended to prepare a charging cable at your company and use it as a backup for charging. There is a scratch on the upper left. Please refer to the last three photos. I bought a case and used it partway through. If you put on a case, you won't have to worry about the scratch. Cases can be purchased online for a few hundred yen. For your reference, the fourth and fifth photos from the end show the battery after charging to 100% before bed and completing a 5km run the next morning. The battery still had 80% remaining even after wearing it on my wrist while sleeping. Thank you for looking.