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
New carbon fiber body is light, compact and very comfortable; Same excellent image quality as the flagship D500; Quick 8.2 frames per second burst shooting with generous buffer; Very fast, accurate autofocus; Tilting touch-screen display; Very good battery life; Records ultra high-def 4K and 60fps Full HD too.
Only a single flash card slot; Doesn't support portrait / battery grip accessories; No rear infrared receiver any more; non-CPU AI lenses will be manual only; 4K video comes with a heavy crop; Movie AF is prone to hunting, Extended ISO sensitivities are a gimmick.
Comfortable ergonomics and solid build; Versatile EVF and tilt-swivel, touch-screen LCD; Good image quality; Great performance for its class; New C-RAW format saves on raw file size; 4K video is an M-series first.
Somewhat limited dynamic range; JPEGs a little soft at base ISO, and more so at higher ISOs; Warm white balance under incandescent light; Poor battery life; Raw buffer is still shallow (but C-RAW helps).