Raspberry Pi Buying a display?
For almost all Raspberry Pi do you need a screen. For some projects you can create / use a web application. If you only need an image once, you can work with SSH. With this you can use your Laptop, for example, to Raspberry Pi to control. In most cases, however, it is nicer to use a display or monitor. When you have connected a Pi to a display, you can use it as a standalone unit. So you actually have an extra computer.
What should you pay attention to when buying a display?
Displays for Raspberry Pi come in all shapes and sizes. So it is important to think about what you want to use it all for. Does it have to be processed in a housing? Then the size is very important. Will your project be interactive? Then a touch display can be useful. Don't want a touchscreen? Then you can connect a keyboard and mouse to the Pi. Do you just need to display information on the screen? Then you may not need a touchscreen. It is then useful to see how you are going to attach the screen. Are you hanging it up? Or do you place it in a housing.