LCD and Viewfinder
Canon 300D has a Fixed Type 1.8" LCD screen with a resolution of 118k dots. At only 1.8", the screen is on the smaller side and 118kdot resolution is lower than most of the recent models in this class.
300D has a built-in Optical (pentamirror) viewfinder. The viewfinder has a coverage of 95% and a magnification ratio of 0.5x. 95% coverage means that what you see in your viewfinder while shooting will slightly be different from the actual image.
Max Shutter speed
Canon 300D can shoot continuously at max speed of 3 fps
and has max shutter speed of 1/4000 sec
300D has a built-in flash, and it also has a flash shoe to mount your external flashes too.
Canon 300D features a Phase Detection autofocusing system. The AF system has 7 points to choose from.
Unfortunately Canon 300D doesn't have Video recording ability.
Connectivity and Storage
Canon 300D has a USB 1.0 (1.5 Mbit/sec) port to connect your camera to other devices.
Canon 300D Features Compared to Main Competitors
You can download Canon 300D's User Manual here