Xbox One’s screen size can be adjusted through the console’s settings. To do this, you’ll need to know the following: -The Xbox One’s system resolution is 854 x 480. This is the resolution that your console uses when displaying images and videos. -The Xbox One supports a maximum screen size of 4K (3840 x 2160). This means that if you have a 4K monitor, you can use it to play games at its full resolution. However, some games may not be able to run at this resolution due to frame rate limitations. -To adjust the Xbox One’s screen size, go to Settings and select “Screen Size.” Then, set the desired screen size as your desired output resolution.