iRobot Roomba Plus 678 Robot Vacuum & Mop Combo
Today
Typical price$900
Amazon: the cheapest today among the stores checked
Buy on AmazoniRobot Roomba Plus 678 Robot Vacuum & Mop Combo or iRobot Roomba Plus 678X Robot Vacuum & Mop Combo?
Cost the same today, across the stores checked.
iRobot Roomba Plus 678 Robot Vacuum & Mop Combo is the cheaperiRobot Roomba Plus 678X Robot Vacuum & Mop Combo is the cheaper
The comparison in detail
iRobot Roomba Plus 678X Robot Vacuum & Mop Combo
Today
Typical price$900
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 06/11/2026
Roomba Plus 678 Robot Vacuum & Mop Combo
- Amazon Lowest price$900Buy on Amazon
Roomba Plus 678X Robot Vacuum & Mop Combo
- Amazon Lowest price$900Buy on Amazon
Spec sheet side by side
| Item | Roomba Plus 678 Robot Vacuum & Mop Combo | Roomba Plus 678X Robot Vacuum & Mop Combo |
|---|---|---|
| Specs | ||
| Type | Robot | Robot |
| General | ||
| Model changes | Roomba Plus 678 Robot Vacuum & Mop Combo | Roomba Plus 678X Robot Vacuum & Mop Combo |
Other comparisons
Roomba Plus 678 Robot Vacuum & Mop Combo orDreame L50 Ultra Robot Vacuum$900Compare- Roomba Plus 678X Robot Vacuum & Mop Combo orDreame L50 Ultra Robot Vacuum$900Compare
Roomba Plus 678 Robot Vacuum & Mop Combo orDreame L60 Ultra PE Robot Vacuum and Mop$900Compare- Roomba Plus 678X Robot Vacuum & Mop Combo orDreame L60 Ultra PE Robot Vacuum and Mop$900Compare
Roomba Plus 678 Robot Vacuum & Mop Combo orEcovacs DEEBOT X12 OMNICYCLONE Robot Vacuum and Mop$899Compare
Roomba Plus 678 Robot Vacuum & Mop Combo orRoborock Qrevo S5V Robot Vacuum and Mop$900Compare
See more 1 comparison
How we choose
Source: Catalog of partner stores, checked on 06/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the vacuum cleaner; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure real suction on carpet or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.