Resolution of the Display
Screen resolution is the number of individual pixels a screen can show horizontally and vertically.
Raspberry Pi OS doesnt list an official minimum resolution, but you should aim for 480x320 or higher.
The Raspberry Pi 4B and Pi 400 are capable of runningtwo 4K displays simultaneously.
Alternatively, you may want something more portable.
It all hinges on your preference and intended system.
The refresh rate also affects whether you experience screen tearing or frame drops when using the display.
Image Credit:Elecrow
Touchscreen Functionality
This is another helpful feature to look out for when picking a display.
Note that you’ll need to install an on-screen keyboard such as Onboard, however.
You should also be aware of the differences betweencapacitive and resistive touchscreenswhen choosing a touch display.
Here are three of the most popular and inexpensive smaller screens you’ve got the option to buy.
It is a modest, multitouch 800x480 display that you’re able to buy for around $78.
It is powered through the GPIO port and connects to the DSI port with a ribbon cable.
Also,setting up this Raspberry Pi touchscreenis easy, as long as you take the necessary precautions.
It connects to the Raspberry Pi via HDMI and USB.
It supports full HD maximum and five-point capacitive touch.
It also comes with a stand that works in both landscape and portrait modes.
Image Credit:Elecrow