Purchased on Mercari and used for approximately 10 hours. No sensor skipping or other malfunctions were observed even on a glass pad. As shown in the images, the USB cable is missing. Other than that, I haven't used anything since I bought it, so I don't think anything else is missing. (I'm unsure because I didn't buy it new, so the official accessories are unclear) I used grip tape, so there are no visible stains or scratches on the body. It's labeled as 4K, but it supports up to 8K. Thank you.