Some phones feature the ability to take a still picture or video, using a camera. The pictures and/or video can then be sent wirelessly, or sometimes associated with phone book entries and used for Picture ID on incoming calls.
The phones listed with the "Camera" feature on this site have a built-in camera. Some other phones do not include a camera, but are designed to work with camera accessories.
Phones that can also record video are listed with the "Video Capture" feature on this site.