Cameras with longer battery life can take more photos before exhausting their batteries.
Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable
Superb still and video image quality; Powerful, fast, and accurate AF system with loads of cross-type points, loads of configurability and great frame coverage; Rugged, weather-sealed body with great control layout and user-interface configurability.
Dynamic range is limited by noise in deep shadows; Somewhat heavy-handed noise suppression and sharpening at default settings. (Shooting RAW avoids both.); No AF illuminator.
Excellent image quality for its class; Very good optical performance from the bright f/2-2.8 4x lens; Quick autofocus, even in very low light; Fast burst modes; EVF fixes the flaws of optical viewfinder in X20; Tilting high-res LCD screen; Excellent feel in the hands; Very good battery life.
Top shutter speed is only 1/1000s when lens is wide open; No built-in ND filter; 28mm eq. may not be wide enough for some; Shallow buffer depths; Default NR processing a bit heavy-handed.