Dreame L40s Ultra Shipping

How the Dreame L40s Ultra compares

We track 98 robot vacuums. Here is where this one sits on the figures its maker publishes, computed from the sourced values in our database.

• Suction 19,000 Pa: higher than 45 and lower than 47, level with 1 of the other 93 robot vacuums that publish it (median 19,250 Pa).
• Height 97 mm (3.8 in): higher than 45 and lower than 46 of the other 91 robot vacuums that publish it (median 97.3 mm (3.8 in)).
• Runtime 220 min: higher than 28 and lower than 6, level with 3 of the other 37 robot vacuums that publish it (median 3 h).
• Weight 4.1 kg (9 lb): higher than 20 and lower than 41, level with 5 of the other 66 robot vacuums that publish it (median 4.5 kg (10 lb)).
• Mop lift height 10.5 mm (0.4 in): higher than 22 and lower than 23, level with 12 of the other 57 robot vacuums that publish it (median 10.5 mm (0.4 in)).
• Threshold climb 22 mm (0.9 in): higher than 24 and lower than 37, level with 3 of the other 64 robot vacuums that publish it (median 24.9 mm (1 in)).

Its lowest published US-dollar price, US$569.99, is above 17 and below 62 of the 80 robot vacuums with a published US-dollar price (median US$800).

Dreame publishes 28 of the 35 figures we track for the Dreame L40s Ultra (80%). The median across the 98 robot vacuums in our database is 72%, so it discloses more than 80 of them. Not published by the maker: noise.

Background reading: Robot vacuum and mop buying guide 2026.