In the Roborock Qrevo S Pro vs Dreame L40 Ultra Gen 2 matchup, the Roborock is the pick for mopping and the Dreame is the pick for raw suction per dollar. The Dreame lists 25,000 Pa against the Roborock’s 18,500 Pa and costs about $50 less, at $499.98 versus $549.99 (Amazon listings, Oct 16, 2026).
Testers split on them. The Qrevo S Pro beat the average in stain tests by about 40 points, according to Vacuum Wars, a YouTube channel that buys and lab-tests robot vacuums, though its rubber brush struggled with hair. Jamie Andrews, a YouTuber who reviews robot vacuums, noted the L40 Gen 2 jumped to 25,000 Pa from 11,000 Pa on Gen 1 but dropped some Gen 1 features.
Both ranked in the top 10 of Amazon Best Sellers in Robotic Vacuums that day, at #4 and #7.
Roborock Qrevo S Pro vs Dreame L40 Ultra Gen 2: Side-by-Side Specs
Prices checked on Amazon Oct 16, 2026. I may earn a commission from links, at no cost to you.
| Roborock Qrevo S Pro | Dreame L40 Ultra Gen 2 | |
|---|---|---|
| Price (Oct 16, 2026) | $549.99 | $499.98 |
| Amazon rating | 4.1 (6,669 ratings) | 4.4 (729 ratings) |
| Bought in past month (Amazon badge) | 10K+ | 4K+ |
| Listed suction | 18,500 Pa | 25,000 Pa |
| Dock | Auto-empty 2.7 L bag (7–9 weeks), 167°F mop wash, 113°F drying, auto refill | All-in-one self-cleaning dock |
| Mopping | Dual spinning mops, 10 mm lift | Extendable mop, 0.41 in (10.5 mm) lift |
| Navigation | LiDAR + structured-light obstacle avoidance | Smart Pathfinder and 3DAdapt obstacle avoidance |
| Runtime (listed) | Not listed on Amazon | Up to 231 min (Quiet Mode), 5,200 mAh |
| Buy | Check price | Check price |
Roborock Qrevo S Pro Highlights
- 18,500 Pa suction
- Dock auto-empties into a sealed 2.7 L bag (listed 7–9 weeks)
- Mops washed with 167°F water and dried with 113°F air
- Zero-tangle side brush and all-rubber main brush
- 10 mm mop lift and carpet modes
- 3.8 in tall to reach under furniture; 55 dB listed; 2.4 GHz Wi-Fi only
Dreame L40 Ultra Gen 2 Highlights
- 25,000 Pa suction with 5 suction levels
- Extends its brush and mop into corners and under furniture
- 4 carpet modes: avoid, suction boost, intensive, 0.41 in mop lift
- Up to 231 minutes and 1,679 ft² in Quiet Mode (5,200 mAh battery)
- Works with Alexa, Siri and Google Home; 2.4 GHz Wi-Fi only
Which One Should You Buy?
On paper the Dreame L40 Ultra Gen 2 lists more suction (25,000 vs 18,500 Pa), an extending mop and brush, and up to 231 minutes in Quiet Mode, at about $50 less. The Roborock Qrevo S Pro lists a 167°F hot-water mop wash, a 3.8 in height and a 55 dB noise level.
Testers split on them. The YouTube channel Vacuum Wars found the Qrevo S Pro a strong mopper with a weaker vacuum on hair. Reviewers of the L40 Gen 2 criticized its mopping and the features Dreame removed from Gen 1. If mopping matters most, lean Qrevo S Pro. If you want raw suction and corner reach for the price, lean L40 Gen 2, and consider the optional TriCut brush the YouTube channel Jamie Andrews recommends for hair.
My Planned Test
Planned test: if I get both robots, I plan to run each one on the same floor plan and test mess, then compare pickup, mopping, hair wrap and how often each one gets stuck. I will add my results and my Home Smart video here when they are done. Until then, nothing on this page is a hands-on claim from me.
What YouTube Reviewers Found About Each Robot
These findings are paraphrased from the video transcripts and credited to each creator. They are the creators’ own test results and opinions, not mine.
- Vacuum Wars bought a Qrevo S Pro and called the mop its best feature: it beat the average in their stain tests by about 40 points, and the 10 mm mop lift lets it clean mixed floors in one run.
- In the same Vacuum Wars test, the single rubber brush struggled with hair. It removed only 43% of flattened 2.5-inch hair from carpet, and 62% of the hair wrapped around the brush in their 7-inch tangle test.
- Jamie Andrews noted the L40 Ultra Gen 2 jumps to a 25,000 Pa rating from 11,000 Pa on Gen 1, adds Matter support and launched at a much lower price than Gen 1.
- He also said Dreame removed features from Gen 1: the RGB camera (Gen 2 uses a structured-light sensor), the built-in voice assistant, the side-brush lift and the included detergent tank, which is sold separately.
- Just A Dad Approved lived with the L40 Gen 2 for 3 months (63 cleaning cycles). He liked the easy setup and hot-water mop washing but rated the mopping poorly, said it got stuck on U-shaped chair legs, and gave it a “skip it”. He noted its parts match the MOVA P10 Pro, so replacement parts are cheap.
Frequently Asked Questions
Which has more suction?
The Dreame L40 Ultra Gen 2 lists 25,000 Pa and the Qrevo S Pro lists 18,500 Pa. Testers note that Pa ratings alone don’t decide cleaning results.
Which is cheaper?
On October 16, 2026, the L40 Ultra Gen 2 listed at $499.98 and the Qrevo S Pro at $549.99. Prices change often.
Does the L40 Ultra Gen 2 have a camera?
According to Jamie Andrews, Gen 2 dropped the RGB camera from Gen 1 and uses a structured-light sensor for obstacle avoidance.
Which is better for mopping?
Vacuum Wars rated the Qrevo S Pro’s mopping highly, and Just A Dad Approved rated the L40 Gen 2’s mopping poorly after 3 months.
Sources
- Amazon product listings for the robot vacuums linked above, checked October 16, 2026
- Amazon Best Sellers in Robotic Vacuums (snapshot October 16, 2026)
- Vacuum Wars: “Roborock Qrevo S Pro: It Sells Like a Winner. Does It Clean Like One?”
- Jamie Andrews: “The New Dreame L40 Ultra Gen 2 is NOT What I Expected.”
Related: Roborock Qrevo S Pro Review | eufy E25 vs Qrevo S Pro | Best Robot Vacuum and Mop Combo Under $500
Notes and disclosure
Note: Prices, ratings and specs come from the Amazon listings and Amazon Best Sellers in Robotic Vacuums on October 16, 2026. Prices change often, so check the current listing. Test results quoted below come from the YouTube reviewers credited in each section. My own hands-on results will be added after my planned test.
Affiliate Disclosure: If you purchase an item through the links on this page, I may receive a commission, at no additional cost to you. Thank you for supporting the channel.