Samsung’s Galaxy S21 Ultra display offers a few tricks, including a 120Hz refresh rate. If desired, here’s how to adjust refresh rate and screen resolution.

You can easily change your screen resolution in Windows 10 at any time via the Display Settings menu.

Here's a guide on how to change a Samsung Galaxy S10's screen resolution and choose from its three different tiers of visual quality.

How do you change your Mac’s screen resolution? It depends on whether you have an external monitor connected, but our guide makes it super clear and easy to do.