Learn more Dollar for dollar ... of Dell's S2721QS. 4K (3,840 x 2,160) on a 27-inch screen works out to 163 pixels per inch. That's double the pixel density of a 27-inch 1080p monitor, and ...

covering news and hardware reviews. Dell has made its latest UltraSharp 4K monitors more attractive to PC gamers by doubling the previous generation’s 60Hz refresh rate. The 27-inch and 32-inch ...