What’s the difference between Roomba 780 and 770? We will compare them below:

In fact, they are the same machine except for the following things:

Room To Room Navigation:
The Roomba 780 features the room to room navigation while the Roomba 770 doesn’t.
780 has the “Virtual Wall Lighthouses” that can keep Roomba to clean one room completely before directing it to vacuum the next one. If you have multiple rooms to clean, this feature suits your needs better. You can switch between Virtual Wall and Lighthouse mode.
The Roomba 770 comes with only “Virtual Walls” function that will just keep the little vac out of specified areas, it is not able to help navigating.

Control Panel:
iRobot Roomba 770 features buttons while the Roomba 780 uses touchpad controls.

Roomba 770 Buttons:

Roomba 780 Touchpad:

Extra Set of Brushes:
The Roomba 780 comes with one extra flexible brush, bristle brush, and side brush, whereas 770 doesn’t.

Color:
There is a little difference between their colors.
Roomba 770 vs 780

Price: Roomba 770 is $100 cheaper than the 780.
On irobot.com, iRobot Roomba 780 is priced at $599.99 while Roomba 770 is priced at $499.99 when we write this post.

Do you know any other difference between Roomba 770 and 780? If yes, please share below. Thanks.