The highest display resolution of the 43UF675 is 4K Ultra HD. That's over four times the display resolution of a Full HD TV, which is the most frequently found display resolution. 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 across all TVs that have been on the market for a comparable time to the 43UF675.
The worst display resolution amongst similar types of television is HD Ready.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
Alternative 4K Ultra HD TVs currently available which you might also want to consider include the Samsung UE40JU6740, or the Panasonic TX-49CXX759 which is cheaper.