The highest display resolution of the 42PUS7809 is 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.
A 4K Ultra HD HD type is actually the best display resolution across all TVs of a comparable spec and age to the 42PUS7809.
Across similar types of TV the worst display resolution is Not supported.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
We think you might also be interested in some of the other 4K Ultra HD televisions currently available including because of it's better review score, the 49PUS7809 (£749.00), or the 40PUS6809 (£471.59) both from Philips or the LG 42UB820 (£399.00).