There are two different technologies when it comes to printers and they are suitable for different printing needs.
Many printers come with a built-in scanner, sometimes referred to as multifunction printers. That’s convenient to have if you scan documents frequently, and it’s both cheaper and takes up less space than having a separate scanner. But if you scan very rarely, your mobile phone might be sufficient.
Printers are a little infamous for being difficult and having connection issues. You can easily avoid this by checking what kind of connections the printer is compatible with. For example, a USB connection is useful if you need to print from USB sticks or external hard drives. Wi-Fi connectivity is now common and offers a convenient wireless solution. If you want that little bit extra, you can check out Wi-Fi Direct, which allows you to connect the printer directly to wireless devices such as your phone for fast printing.