The highest display resolution of the 55PUS7809 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 in fact the best display resolution amongst all televisions that were launched around the same time as the 55PUS7809.
A Full HD HD type is the worst display resolution amongst comparable types of TV.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
We compared all the other 4K Ultra HD TVs to this television and we think because of it's better review score, the 50PUS6809 (£689.09), and the 50PUK6809 (£691.29) both from Philips or the LG 55UB820 is also worth considering.