Thats why, while both printers have the same physical sizes, the MG5170 is a bit lighter.
What makes them different is their supported maximum optical resolutions.
While the MG5170 offers a 1200dpi scanner, the sibling comes with a 2400dpi scanner.

These speeds are slightly faster than those of the MG5270.
The two printers can scan and copy pages too.
The scan speeds are about the same.

The copy speeds are different, though, with the MG5170 being a bit superior.
This means users can print up to 300 pages without stopping if necessary.
This addition, though it improves the print quality, increases the printing costs.
