This camera is so light that you can comfortably carry it around all day. Environmental Sealings
For a camera that you carry everywhere with you, being weather proofed is a big advantage. You will have one less thing to worry about. Large APS-H (26.6 x 17.9 mm) sensor
Large sensor in Sigma Quattro H ensures a good low light image quality compared to smaller sensor, and it also provide shallow depth of field and a nice blurry background when needed.
Medium size Body
With relatively smaller body compared to DSLRs and better ergonomics compared to Compacts,Sigma Quattro His a good compromise between size and functionality.
Body Thickness 91mm
With a thickness of 91mm,Sigma Quattro H is not a pocketable camera for sure.