Dreame X40 Ultra vs Roborock Qrevo QV 35A comparison

Updated August 2026

Data from Amazon and official Dreame and Roborock sites.

2026 verdict

Dreame X40 Ultra edges out Roborock Qrevo QV 35A in 2026, led by price, warranty, and battery life. The comparison tilts its way because of price, warranty, and battery life, with suction power and water tank capacity keeping it in front. Roborock Qrevo QV 35A still makes sense if rating and onboard dustbin capacity are your priority, but most buyers should still lean toward Dreame X40 Ultra. That is why Dreame X40 Ultra wins the verdict here.

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Feature	Dreame X40 Ultra	Roborock Qrevo QV 35A	Winner
Price	$599.99	$649.99	Dreame X40 Ultra
Rating	3.9	4.1	Roborock Qrevo QV 35A
Warranty	3 years	1 year	Dreame X40 Ultra
Battery Life	210 minutes	180 minutes	Dreame X40 Ultra
Suction Power	12000Pa	8000Pa	Dreame X40 Ultra
Water Tank Capacity	4.5L	4L	Dreame X40 Ultra
Onboard Dustbin Capacity	300ml	330ml	Roborock Qrevo QV 35A
Dock Dustbin Capacity	3.2L	2.7L	Dreame X40 Ultra
Auto Recharge	YES	YES	Tie
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi	Tie
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa, Home Assistant	Tie
Navigation Type	Laser (LiDAR)	Laser (LiDAR)	Tie

Winner

Dreame

Dreame X40 Ultra

$599.99

Buy on Amazon USA

+ Price: $599.99
+ Warranty: 3 years
+ Battery Life: 210 minutes
- Rating: 3.9 vs 4.1
- Onboard Dustbin Capacity: 300ml vs 330ml

Roborock

Roborock Qrevo QV 35A

$649.99

Buy on Amazon USA

+ Rating: 4.1
+ Onboard Dustbin Capacity: 330ml
- Price: $649.99 vs $599.99
- Warranty: 1 year vs 3 years

Frequently Asked Questions

Which is better overall: Dreame X40 Ultra or Roborock Qrevo QV 35A?

Dreame X40 Ultra has the stronger overall profile in this comparison, especially for price, warranty, and battery life.

What is the biggest difference between Dreame X40 Ultra and Roborock Qrevo QV 35A?

Price is one of the clearest differences: Dreame X40 Ultra lists $599.99, while Roborock Qrevo QV 35A lists $649.99.

Which one looks better on price?

Dreame X40 Ultra is listed at $599.99, while Roborock Qrevo QV 35A is listed at $649.99. Dreame X40 Ultra (better spec).

Who should buy Dreame X40 Ultra?

Choose Dreame X40 Ultra if your priority is price and warranty and that matters more than rating.

Who should buy Roborock Qrevo QV 35A?

Choose Roborock Qrevo QV 35A if your priority is rating and onboard dustbin capacity and that matters more than price.

Full comparison table

Compare all 142 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.