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
20x zoom ranges from very wide to ultra telephoto; Wide range of exposure settings, including Manual, plus many auto modes; Full HD video at 1080p; Video autofocus and zoom while shooting, HDMI interface; Very good image quality; Built-in GPS.
Tight control placement; Low battery life; Soft corners at wide angle; Small front fingergrip; No live histogram. No raw mode.
Improved 20.1-megapixel resolution; Impressive image quality, especially for its price; Fast and decisive autofocus (in most conditions); Very good battery life; Good video quality (Full HD 1080p, though it doesn't support 60p frame rate).
Plastic lens mount; Slower burst mode speeds and shallower buffer than A57; LCD no longer fully articulating; Mediocre kit lens; Electronic instead of an optical viewfinder may be a turnoff for some.