Shop by price · Updated for 2026

Best Robot Vacuums Under $400

All the robot vacuums in our catalog priced under $400, ranked best first, with live prices, real owner ratings and full specs so you can compare before you buy.

Last updated

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23
Products
6
Brands
$139.99
Prices from
50%
Top discount

Eufy 11S MAX is the top pick among robot vacuums under $400, rated 4.3 stars across 59,152 customer reviews.

23 products

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FAQ

Frequently asked questions

What are the best robot vacuums under $400?

Eufy 11S MAX, iRobot Roomba 105 and iRobot Roomba 105 Combo lead our ranking of robot vacuums under $400, ordered by customer rating weighted by how many reviews back it. The full list compares 23 products in this price range.

How many robot vacuums cost less than $400?

This page tracks 23 robot vacuums under $400 from 6 brands, with prices starting at $139.99.

Are these prices up to date?

Prices come from each product's Amazon listing and are re-checked continuously, so every card shows the latest price we have. A product whose price rises above $400 drops off this list on the next update.

Looking for more than $400?

See all the robot vacuums in the catalog, compared side by side on specs, price and rating.

Browse all Robot Vacuums
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