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Here's a video comparison on Engadget. I think he spends a little too much time on how the Roombas deal with cables.


Agreed. While the video shows both the older and newer models running, it doesn't really show the differences. Does the new one clean better? How does the lighthouse mode on the walls work? How much bigger is the new dirt bin next to the old one?

I'm pondering giving my Discovery away as a gift as an excuse to upgrade, but not really sure it's necessary yet. I'll probably hold off till the 5xx series shows up in the refurb channels.