Claimed new improvements or new features include:
- New viewfinder optics with a higher magnification factor of which the displayed image is also brighter, with the addition of a new condenser lens and with an overlaid LCD information display, too
- New metering system with 307k colour pixels which has better metering accuracy and also helps the tracking of moving objects
- New high-speed mirror and shutter driving mechanism
- New PRIME V processor and high ISO performance which is better than that of the K-1 II in terms of noise/details as well as reproduced colours (but that the ISO performance of the K-1 II is really rather outdated by today's standard, nonetheless). New Fine Sharpness II setting option is also made available for in-camera JPEG sharpening.
- New SAFOX 13 AF module of which the layout is shown in the below diagram
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| Legend: Red squares = Crossed AF sensors (25 nos.), Red and Blue squares = Selectable AF points (41 nos.), Deep Blue "circled" sensors = -EV4 low light capable and F2.8 lens aperture compatible (9 nos.) |