Dreame L40s Ultra CE vs SwitchBot K11+
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the Dreame L40s Ultra CE costs $400 and the SwitchBot K11+ costs $400. Pick the Dreame L40s Ultra CE for first time buyers who want a full dock cheaply. Pick the SwitchBot K11+ for small apartments with tight gaps under furniture. The Dreame L40s Ultra CE wins 4 of 8 points we can measure (1 tied).
Who wins, point by point
The Dreame L40s Ultra CE wins 4 of 8 points we can measure (1 tied). Built from today's prices, the specs and independent tests for these two robots.
| L40s Ultra CE | K11+ | Winner | |
|---|---|---|---|
| Price today | $400 | $400 | Tie |
| 3 year cost | $440 | $595 | L40s Ultra CE |
| Warranty | 3 years | 1 year | L40s Ultra CE |
| Suction | 13,000 Pa | 6,000 Pa | L40s Ultra CE |
| Runtime per charge | 260 min | 5 h | K11+ |
| Onboard bin | 300 mL | 4 L | K11+ |
| Climbs thresholds up to | 0.8 in | 0.7 in | L40s Ultra CE |
| Robot height (fits under furniture) | 4.1 in | 3.9 in | K11+ |
- You care most about 3 year cost ($440 vs $595)
- You care most about warranty (3 years vs 1 year)
- You care most about suction (13,000 Pa vs 6,000 Pa)
- Best for first time buyers who want a full dock cheaply
- You care most about runtime per charge (5 h vs 260 min)
- You care most about onboard bin (4 L vs 300 mL)
- You care most about robot height (fits under furniture) (3.9 in vs 4.1 in)
- Best for small apartments with tight gaps under furniture
- Suction
- 13,000 Pa on the Dreame
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 260 min in quiet
Lowest cost L40s with auto empty and mop washing
Full Dreame L40s Ultra CE review, pros and cons →- Suction
- 6,000 Pa
- Navigation
- LiDAR
- Mopping
- No
Tiny self emptying robot for small, furniture packed homes
Full SwitchBot K11+ review, pros and cons →Side by side
| Dreame L40s Ultra CE | SwitchBot K11+ | |
|---|---|---|
| Price | $400 | $400 |
| 3 year cost | $440 | $595 |
| Our score | Not scored yet | Not scored yet |
| Rank in Floors | #55 | #54 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 1 year |
| Suction | 13,000 Pa on the Dreame product page and comparison blog | 6,000 Pa with Quiet, Standard, Strong and Max modes (SwitchBot) |
| Navigation | LDS LiDAR with Smart Pathfinder (Dreame); Vacuum Wars measured 0.73 m2 per minute | LDS LiDAR with SLAM mapping (SwitchBot); TechRadar found it fast and accurate, Tom's Guide needed about four mapping attempts |
| Obstacle avoidance | Single laser 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of 24 objects | Infrared and PSD sensors, no camera; TechRadar and Expert Reviews saw it run over cables and socks |
| Mopping | Dual spinning mops with RoboSwing, 10.5 mm lift, no extension or auto removal (Dreame); Vacuum Wars measured 2.20 g water left, the most of the L40s range | No, no water tank; a disposable wet wipe attachment only, which reviewers found weak (TechRadar) |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, 4 L antibacterial bag, up to 90 days (SwitchBot) |
| Dock features | Auto empty, cool water mop wash, warm air drying, auto water refill, 4.5 L clean and 4 L used tanks; auto detergent dosing is a $39.99 add on (Dreame) | Auto empty and charging only; dock 24 x 18 x 25 cm (TechRadar) |
| Runtime | Up to 260 min in quiet vacuum mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,922 sq ft per charge | Not published; 3,200 mAh battery with under 5 h charging (SwitchBot); Tom's Guide cites over two hours in quiet mode |
| Dustbin | 300 ml or more plus 3.2 L dock bag (Dreame) | Robot bin size not published; 4 L dock bag (SwitchBot) |
| Height | 104 mm (about 4.1 in) (Dreame) | 98.5 mm, 248 mm wide (SwitchBot) |
| Pet hair | TriCut Brush 3.0 (Dreame); Vacuum Wars measured 68% pet hair pickup, 89% carpet sand removal and 0% hair wrap | Expert Reviews collected 3.1 g of pet hair per surface, at the low end of its tests; Tom's Guide pet hair 70% hardwood, 65% carpet |
| App | Dreamehome app with Alexa, Siri and Google Home through third party devices, no built in voice (Dreame) | SwitchBot app plus Matter for Apple Home, Alexa and Google Home; TechRadar noted quirks such as an 8 character room name limit |
| Threshold | 20 mm (Dreame product page); Dreame's comparison blog lists 22 mm in one section and 20 mm in another | Climbs up to 1.7 cm (SwitchBot) |
| Best for | first time buyers who want a full dock cheaply | small apartments with tight gaps under furniture |
| Skip if | you have pets, clutter or want hot water mop washing | you need real mopping or have a large home |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Dreame L40s Ultra CE
- Vacuum Wars (3.10 Vacuum Wars stars): 89% carpet sand removal, 68% pet hair pickup, 0% hair wrap, 8 of 24 obstacles avoided, about 1,922 sq ft per charge and 2.20 g of water left behind, the most of the three L40s models. Not in its Top 20. Source
- The Smart Home Hookup: Ranked it with the Mova P50 Ultra at the top for vacuuming among robots from the last three years and tied for first in mopping with the Narwal Flow. Noted the detergent dispenser is sold separately; listed $469.99 MSRP. Source
SwitchBot K11+
- TechRadar: Charming, capable vacuum for cramped homes with fast, accurate navigation and a large dock bag; the wipe mop is not worth using, auto empty is noisy and it hit a shoe and sucked up a cable. TechRadar gave a Performance 3.5/5 subscore but no overall rating. Source
- Tom's Guide: Picked up all kitty litter but struggled with Cheerios; mapping needed about four attempts and the reviewer preferred the cheaper K10+ Pro unless battery life or noise matter most. Source
Questions buyers ask
Which is better, the Dreame L40s Ultra CE or the SwitchBot K11+?
Pick the Dreame L40s Ultra CE for first time buyers who want a full dock cheaply. Pick the SwitchBot K11+ for small apartments with tight gaps under furniture.
What is the difference between the L40s Ultra CE and the K11+?
Suction: 13,000 Pa on the Dreame product page and comparison blog on the L40s Ultra CE, 6,000 Pa with Quiet, Standard, Strong and Max modes (SwitchBot) on the K11+. Navigation: LDS LiDAR with Smart Pathfinder (Dreame); Vacuum Wars measured 0.73 m2 per minute on the L40s Ultra CE, LDS LiDAR with SLAM mapping (SwitchBot); TechRadar found it fast and accurate, Tom's… on the K11+. Obstacle avoidance: Single laser 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of… on the L40s Ultra CE, Infrared and PSD sensors, no camera; TechRadar and Expert Reviews saw it run over cables… on the K11+.
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