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
Great image quality for a tiny camera; Excellent high ISO for its class; Built-in EVF; Built-in hot-shoe; Improved ergonomics; Improved image quality for long exposures; Improved burst rate with hybrid shutter; 1080/60p video.
Slightly bigger than GM1 (but not by much); No built-in flash; Shallow buffers with RAW files; Dynamic range not quite as good as some competing models; Below average battery life.
Excellent image quality from both JPEGs and RAW files; Superb high ISO performance; Very fast hybrid AF; Robust weather sealing; Dual UHS-II card slots; 4K video.
Precise manual focus is tricky with fly-by-wire focusing; Battery life is only decent; Video quality still not on par with competing cameras.