It's Sony again, the X700
This is the budget player so it has some esoteric features removed, mostly stuff a smart TV has anyway.
4K disk buyers beware! There is a lot of 'Ultra HD' in the shops that isn't 4K at all, it uses HD masters and upscales them to 4K which is what a 4K TV does anyway.
The player has been updated to Dolby Vision but weirdly via a settings switch. Since most providers don't say if they are using Vision this is a chocolate teapot.
YouTube has 4K demos such as
Wildlife in 4K