This is a smart ring for condition management, made in Japan, capable of accurately acquiring and analyzing health data. Please check the SOXAI website for details. I purchased this in September 2025. I am selling it because I lost some weight and changed sizes, and I bought a SOXAI2. I used it daily until then, so it has many scratches. There are no charges other than the initial purchase, and the app is easy to understand. I only needed to charge it once a week. There are no accessories. Only the ring itself, the charger, and the cable are included. I will also include the SOXAI2 sizing kit. It is currently working normally, but please understand that this is a visual inspection by an amateur.