So I recently bought a S23 Ultra off of amazon, when it got here the box was in perfect condition, looked just like the original box, I open the box and the phone also looks completely original, the cameras and everything, onylt hign that looks odd is the selfie camera which looks just slightly bigger than what i’ve seen. I did the “*#06$” thing to check imei and it checks out on the box and phone and everything. Even inside the camera app it says 200mp and gives me an 8k option, but the camera and phone itself are horrible and slow.
Download AnTuTu and perform the verification test. Its one of the couple programs that actually gives proper results, and you can use it as proof. Hope everything works out in the end !