# Dreame L40s Ultra vs Dreame L40s Ultra CE

As of Oct 31, 2026, the Dreame L40s Ultra costs $570 and the Dreame L40s Ultra CE costs $470, so the Dreame L40s Ultra CE is $100 cheaper. The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Dreame L40s Ultra CE is not scored yet. Pick the Dreame L40s Ultra for pet owners with carpet on a budget. Pick the Dreame L40s Ultra CE for first time buyers who want a full dock cheaply.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/dreame-l40s-ultra-vs-dreame-l40s-ultra-ce/

## Side by side

| | Dreame L40s Ultra | Dreame L40s Ultra CE |
|---|---|---|
| Price | $570 | $470 |
| 3 year cost | $570 | $510 |
| Our score | 8.6/10 | Not scored yet |
| Rank in Floors | #9 | #53 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 3 years (Dreame US store) |
| Suction | 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above average | 13,000 Pa on the Dreame product page and comparison blog |
| Navigation | LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute | LDS LiDAR with Smart Pathfinder (Dreame); Vacuum Wars measured 0.73 m2 per minute |
| Obstacle avoidance | 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7 of 24 objects | Single laser 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of 24 objects |
| Mopping | Dual spinning mops, 10.5 mm lift, extend and auto removal (Dreame); Vacuum Wars measured 0.95 g water left and a 259 combined mop score | 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 |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, 3.2 L dust bag, up to 100 days (Dreame) |
| Dock features | Auto empty, 167 F (75 C) hot water mop wash, hot air drying, self cleaning washboard, auto detergent and water refill, 4.5 L clean and 4.0 L dirty tanks; water hookup kit sold separately (Dreame) | 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) |
| Runtime | Up to 220 min in quiet mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,935 sq ft per charge | Up to 260 min in quiet vacuum mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,922 sq ft per charge |
| Dustbin | 310 ml robot bin plus 3.2 L dock bag (Dreame) | 300 ml or more plus 3.2 L dock bag (Dreame) |
| Height | 3.82 in (Dreame) | 104 mm (about 4.1 in) (Dreame) |
| Pet hair | HyperStream Detangling DuoBrush (Dreame); Vacuum Wars measured 91% pet hair pickup, 92% carpet sand removal and 0% hair wrap | TriCut Brush 3.0 (Dreame); Vacuum Wars measured 68% pet hair pickup, 89% carpet sand removal and 0% hair wrap |
| App | Dreamehome app with third party voice assistants only (Dreame); Vacuum Chef notes no built in voice assistant or live video | Dreamehome app with Alexa, Siri and Google Home through third party devices, no built in voice (Dreame) |
| Threshold | 1.57 in double layer and 0.87 in single steps (Dreame) | 20 mm (Dreame product page); Dreame's comparison blog lists 22 mm in one section and 20 mm in another |
| Noise | Vacuum Chef measured 78 dB at max suction | n/a |
| Best for | pet owners with carpet on a budget | first time buyers who want a full dock cheaply |
| Skip if | your floor often has cables, socks or toys | you have pets, clutter or want hot water mop washing |

## What reviewers found

### Dreame L40s Ultra

- Vacuum Wars (3.51 Vacuum Wars stars): 92% carpet sand removal, 91% pet hair pickup and 0% hair wrap with the DuoBrush, about 1,935 sq ft per charge, but only 7 of 24 obstacles avoided. [Source](https://vacuumwars.com/dreame-l40s-series-review/)
- Vacuum Chef (95/100): Scored 95/100 in its real world cleaning tests, measured 490 FPM carpet airflow and 78 dB at max suction. Obstacle avoidance varied by floor and object. [Source](https://vacuumchef.com/dreame-l40s-ultra-review-powerful-suction-smart-mopping-real-world-performance-tested/?amp=1)

### 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](https://vacuumwars.com/dreame-l40s-series-review/)
- 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](https://www.thesmarthomehookup.com/?p=10269)

## Questions buyers ask

### Which is better, the Dreame L40s Ultra or the Dreame L40s Ultra CE?

The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Dreame L40s Ultra CE is not scored yet. Pick the Dreame L40s Ultra for pet owners with carpet on a budget. Pick the Dreame L40s Ultra CE for first time buyers who want a full dock cheaply.

### Which is cheaper?

The Dreame L40s Ultra CE at $470, versus $570 for the Dreame L40s Ultra, checked Oct 31, 2026. Over 3 years with running costs: $570 vs $510.

### What is the difference between the L40s Ultra and the L40s Ultra CE?

Suction: 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above… on the L40s Ultra, 13,000 Pa on the Dreame product page and comparison blog on the L40s Ultra CE. Navigation: LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute on the L40s Ultra, LDS LiDAR with Smart Pathfinder (Dreame); Vacuum Wars measured 0.73 m2 per minute on the L40s Ultra CE. Obstacle avoidance: 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7… on the L40s Ultra, Single laser 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of… on the L40s Ultra CE.

Full reviews: [Dreame L40s Ultra](https://robotsforthat.com/robot/dreame-l40s-ultra/index.md), [Dreame L40s Ultra CE](https://robotsforthat.com/robot/dreame-l40s-ultra-ce/index.md)