The 49UF8507 has a maximum display resolution of 4K Ultra HD. That's over four times the display resolution of the most frequently found HD type of Full HD. 4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
This television's display resolution (4K Ultra HD) is in fact the best display resolution amongst all mid-size TVs that are a comparable age to the 49UF8507.
The worst display resolution across similar types of television is HD Ready.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.