# Dreame L10s Ultra Gen 2 vs Dreame L40s Ultra AE

As of Nov 4, 2026, the Dreame L10s Ultra Gen 2 costs $590 and the Dreame L40s Ultra AE costs $570, so the Dreame L40s Ultra AE is $20 cheaper. The Dreame L10s Ultra Gen 2 scores higher in our ranking (7.8 vs 7.4 out of 10). Pick the Dreame L10s Ultra Gen 2 for budget buyers who want a full auto dock. Pick the Dreame L40s Ultra AE for large mixed floor homes on a mid budget.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/dreame-l10s-ultra-gen-2-vs-dreame-l40s-ultra-ae/

## Side by side

| | Dreame L10s Ultra Gen 2 | Dreame L40s Ultra AE |
|---|---|---|
| Price | $590 | $570 |
| 3 year cost | $680 | $570 |
| Our score | 7.8/10 | 7.4/10 |
| Rank in Floors | #14 | #18 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 3 years (Dreame US store) |
| Suction | 10,000 Pa claimed with four to five levels (Dreame, Stuff); no lab suction measurement found | 19,000 Pa claimed (Dreame) |
| Navigation | Top mounted LiDAR (Stuff); Tom's Guide found its AI routing unpredictable and incomplete in coverage | LDS LiDAR (Dreame); Vacuum Wars measured 0.87 m2 per minute against a 0.70 average |
| Obstacle avoidance | 3DAdapt and Smart Pathfinder claimed (Dreame); Tom's Guide saw it often bump walls and larger objects | RGB AI camera plus 3D structured light, 120+ obstacle types (Dreame); Vacuum Wars saw it avoid 19 of 24 objects |
| Mopping | Twin spinning pads with MopExtend edge reach, 32 wetness levels and 10.5 mm mop lift (Dreame, Tom's Guide); Stuff needed extra passes for tomato sauce | Dual spinning mops, 10.5 mm lift, MopExtend (Dreame); Vacuum Wars measured only 0.35 g of water left behind and a 269 combined mop score against a 188 average |
| Self empty | Yes, 3.2 L dust bag, 75 days claimed (Vacuum Wars spec page); Tom's Guide and Stuff say about two months in use | Yes, 3.2 L dust bag, up to 100 days (Dreame) |
| Dock features | Auto empty, mop washing, auto detergent dispensing, clean and dirty water tanks (Tom's Guide, Stuff) | 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) |
| Runtime | Up to 240 min in Quiet mode (Dreame lab data) | Up to 180 min and 1,808 sq ft (Dreame); Vacuum Wars estimated about 2,462 sq ft per charge |
| Dustbin | 300 ml robot bin (Dreame) | 395 ml on the product page, but Dreame's comparison table lists 300 ml or more |
| Height | 3.83 in (97.2 mm) (Dreame); Stuff notes the LiDAR knob blocks low furniture | 97 mm (Dreame dimensions) |
| Pet hair | Tom's Guide scored pet hair pickup 70% on hardwood and 80% on carpet | Liftable rubber brush plus TriCut Brush 3.0 (Dreame); Vacuum Wars measured 81% pet hair pickup and 0% hair wrap with the TriCut brush |
| App | Dreame app with no go zones and CleanGenius auto settings; works with Alexa, Google Home and Siri (Tom's Guide) | Dreamehome app with Alexa, Google Home, Siri and Apple Watch (Dreame); Matter support (Just A Dad Approved) |
| Threshold | 2 cm claimed (Dreame); Tom's Guide saw it struggle with a 1.4 cm threshold before crossing | 20 mm (Dreame) |
| Noise | Not measured; Tom's Guide found it fairly quiet but noisy on harder debris | n/a |
| Best for | budget buyers who want a full auto dock | large mixed floor homes on a mid budget |
| Skip if | your floors are cluttered or you need precise edge cleaning | corner cleaning and heavy pet hair matter most |

## What reviewers found

### Dreame L10s Ultra Gen 2

- Tom's Guide: Scored 85% overall pickup: Cheerios 80% on hardwood and 90% on carpet, kitty litter 95% on both, pet hair 70% on hardwood and 80% on carpet. Bumped into walls and large objects and CleanGenius mistook wood grain for stains. [Source](https://www.tomsguide.com/home/smart-home/i-tested-the-dreame-l10s-ultra-gen-2-robot-vacuum-and-mop-and-its-one-of-the-best-values-yet)
- Stuff (South Africa) (8.5/10): Reliable LiDAR navigation and low maintenance, never needed a mid clean recharge in a small flat. Tomato sauce stains needed extra passes and the top knob blocked low furniture. Subscores Design 8, Performance 9, Features 9, Value 8. [Source](https://stuff.co.za/2025/08/22/dreame-l10s-ultra-gen-2-robot-vacuum-review/)

### Dreame L40s Ultra AE

- Vacuum Wars (3.52 Vacuum Wars stars): 85% carpet sand removal, 81% pet hair pickup, 0% hair wrap, 19 of 24 obstacles avoided and about 2,462 sq ft per charge against a 1,015 average. Named Best Value of the Year. [Source](https://vacuumwars.com/dreame-l40s-series-review/)
- Just A Dad Approved (7.9/10): After 90+ days of home testing, liked the AI camera, included TriCut brush and low upkeep, but said corners get less attention without an extending side brush and recommended buying only on deep sale. Its bottom line text names a different model, so treat the score with care. [Source](https://justadadapproved.com/product/dreame-l40s-ultra-ae-robot/)

## Questions buyers ask

### Which is better, the Dreame L10s Ultra Gen 2 or the Dreame L40s Ultra AE?

The Dreame L10s Ultra Gen 2 scores higher in our ranking (7.8 vs 7.4 out of 10). Pick the Dreame L10s Ultra Gen 2 for budget buyers who want a full auto dock. Pick the Dreame L40s Ultra AE for large mixed floor homes on a mid budget.

### Which is cheaper?

The Dreame L40s Ultra AE at $570, versus $590 for the Dreame L10s Ultra Gen 2, checked Nov 4, 2026. Over 3 years with running costs: $680 vs $570.

### What is the difference between the L10s Ultra Gen 2 and the L40s Ultra AE?

Suction: 10,000 Pa claimed with four to five levels (Dreame, Stuff); no lab suction measurement… on the L10s Ultra Gen 2, 19,000 Pa claimed (Dreame) on the L40s Ultra AE. Navigation: Top mounted LiDAR (Stuff); Tom's Guide found its AI routing unpredictable and incomplete… on the L10s Ultra Gen 2, LDS LiDAR (Dreame); Vacuum Wars measured 0.87 m2 per minute against a 0.70 average on the L40s Ultra AE. Obstacle avoidance: 3DAdapt and Smart Pathfinder claimed (Dreame); Tom's Guide saw it often bump walls and… on the L10s Ultra Gen 2, RGB AI camera plus 3D structured light, 120+ obstacle types (Dreame); Vacuum Wars saw it… on the L40s Ultra AE.

Full reviews: [Dreame L10s Ultra Gen 2](https://robotsforthat.com/robot/dreame-l10s-ultra-gen-2/index.md), [Dreame L40s Ultra AE](https://robotsforthat.com/robot/dreame-l40s-ultra-ae/index.md)