Dreame X40 Ultra Robotic Vacuum
Today
Typical price$550
Amazon: the cheapest today among the stores checked
Buy on AmazonDreame X40 Ultra Robotic Vacuum or Shark PowerDetect Self-Empty Robot Vacuum?
Cost the same today, across the stores checked.
Dreame X40 Ultra Robotic Vacuum is the cheaperShark PowerDetect Self-Empty Robot Vacuum is the cheaper
The comparison in detail
Shark PowerDetect Self-Empty Robot Vacuum
Today
Typical price$550
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
X40 Ultra Robotic Vacuum
- Amazon Lowest price$550Buy on Amazon
PowerDetect Self-Empty Robot Vacuum
- Amazon Lowest price$550Buy on Amazon
Spec sheet side by side
| Item | X40 Ultra Robotic Vacuum | PowerDetect Self-Empty Robot Vacuum |
|---|---|---|
| Specs | ||
| Type | Robot | Robot |
| General | ||
| Model changes | X40 Ultra Robotic Vacuum | PowerDetect Self-Empty Robot Vacuum |
Other comparisons
X40 Ultra Robotic Vacuum orEcovacs DEEBOT T80 OMNI Robot Vacuum and Mop$550Compare
X40 Ultra Robotic Vacuum orEcovacs DEEBOT T90 MAX Plus Robot Vacuum$549Compare- PowerDetect Self-Empty Robot Vacuum orEcovacs DEEBOT T80 OMNI Robot Vacuum and Mop$550Compare
X40 Ultra Robotic Vacuum orEcovacs DEEBOT T90 PRO OMNI Robot Vacuum and Mop$549Compare
PowerDetect Self-Empty Robot Vacuum orNarwal Freo Z10 Turbo Robot Vacuum and Mop Combo$550Compare- X40 Ultra Robotic Vacuum orNarwal Freo Z10 Turbo Robot Vacuum and Mop Combo$550Compare
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.