Dreame L40 Ultra Gen 2 vs eufy Omni S2 (2026): Which to Buy?

Updated September 2026

Data from Amazon and official Dreame and Eufy sites.

2026 verdict

In this 2026 eufy Omni S2 vs Dreame L40 Ultra Gen 2 comparison, eufy Omni S2 comes out ahead thanks to rating, battery life, and connectivity.

Winner

eufy Omni S2

$1599.99

Buy on Amazon USA

Its strongest advantages show up in rating, battery life, and connectivity, with suction power helping widen the gap. Dreame L40 Ultra Gen 2 is still relevant if you care most about price, warranty, and water tank capacity, but eufy Omni S2 is the stronger recommendation overall. That is enough to make eufy Omni S2 the better pick for most buyers.

Dreame

Dreame L40 Ultra Gen 2

29% OFF

$499.99

$699.99

Buy on Amazon USA

Winner

Eufy

eufy Omni S2

$1599.99

Buy on Amazon USA

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Feature	Dreame L40 Ultra Gen 2	eufy Omni S2	Winner
Price	$499.99	$1599.99	Dreame L40 Ultra Gen 2
Rating	4.3	4.4	eufy Omni S2
Warranty	3 years	2 years	Dreame L40 Ultra Gen 2
Battery Life	231 minutes	260 minutes	eufy Omni S2
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi, Bluetooth	eufy Omni S2
Suction Power	25000Pa	30000Pa	eufy Omni S2
Water Tank Capacity	4.5L	3L	Dreame L40 Ultra Gen 2
Dock Dustbin Capacity	3.2L	2.5L	Dreame L40 Ultra Gen 2
Auto Recharge	YES	YES	Tie
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Tie
Navigation Type	Laser (LiDAR)	Laser (LiDAR)	Tie
Obstacle Detection	YES	YES	Tie

Dreame

Dreame L40 Ultra Gen 2

29% OFF

$499.99

$699.99

Buy on Amazon USA

+ Price: $499.99
+ Warranty: 3 years
+ Water Tank Capacity: 4.5L
- Rating: 4.3 vs 4.4
- Battery Life: 231 minutes vs 260 minutes

Winner

Eufy

eufy Omni S2

$1599.99

Buy on Amazon USA

+ Rating: 4.4
+ Battery Life: 260 minutes
+ Connectivity: 2.4 GHz WiFi, Bluetooth
- Price: $1599.99 vs $499.99
- Warranty: 2 years vs 3 years

Frequently Asked Questions

Which is better overall: Dreame L40 Ultra Gen 2 or eufy Omni S2?

eufy Omni S2 has the stronger overall profile in this comparison, especially for rating, battery life, and connectivity.

What is the biggest difference between Dreame L40 Ultra Gen 2 and eufy Omni S2?

Price is one of the clearest differences: Dreame L40 Ultra Gen 2 lists $499.99, while eufy Omni S2 lists $1599.99.

Which one looks better on price?

Dreame L40 Ultra Gen 2 is listed at $499.99, while eufy Omni S2 is listed at $1599.99. Dreame L40 Ultra Gen 2 (better spec).

Who should buy Dreame L40 Ultra Gen 2?

Choose Dreame L40 Ultra Gen 2 if your priority is price and warranty and that matters more than rating.

Who should buy eufy Omni S2?

Choose eufy Omni S2 if your priority is rating and battery life and that matters more than price.

Full comparison table

Compare all 148 Robot Vacuums side by side

You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.