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
Fast f/2 lens at wide angle; Decent image quality for its class; Excellent waterproof and rugged specs; Solid feature set, including the cool Microscopic Macro function for super closeups; Aperture priority mode; Peppy performance and good battery life; Accepts conversion lenses.
Tendency to underexpose shots in Auto mode; Aggressive noise reduction smudges fine detail; Poor video quality with lots of artifacts; No built-in Wi-Fi.
AF speed vastly improved; Increased continuous frames per second (JPEGs at 12.5fps vs 10fps in G15); Solid build and ergonomic, comfortable feel; Excellent f/1.8-2.8 5x optical zoom lens; Advanced photographic features, including PASM dial and RAW capture; Dedicated ISO button; Customizable buttons; Excellent macro mode; 1080p/60fps Full HD video.
LCD screen not articulated; Larger design makes it not very pocketable; Optical viewfinder not very accurate; RAW burst shooting still slow; Wi-Fi is clunky to set-up & no remote shooting capabilities; No built-in GPS.