I tested Roborock’s Qrevo S Pro against the QV 35A

Robot vacuums have come a long way since those little round machines that used to constantly bump into chairs.

Now, the best ones come with auto-dock features, advanced navigation with LiDAR sensors and better dust pickup than most general corded vacuums. Newer ones also come with their very own mops, which means they can vacuum and mop your floors all in one.

That’s exactly the idea behind Roborock’s vacuums, including the Roborock Qrevo S Pro, the newer model positioned as a more premium step up from the QV 35A. At a glance, the two look so similar that the difference is indiscernible to the eye, but what they pack inside is quite different and shows in terms of performance.

After testing both in the same office kitchen setup, the upgrades started to feel more obvious in the places that matter most: suction, speed, edge cleaning, obstacle detection and dock maintenance.

Check out our full comparison of the Roborock Qrevo S Pro and its previous-gen counterpart, the QV 35A, below.

Testing setup

I tested both models in our office kitchen area using dry crumbs and chip debris on hard flooring. Unfortunately, the office Wi-Fi would not connect to either robot vacuum, so I tested the cleaning performance using the physical start button instead. That meant I couldn’t fairly test app-only features like room mapping, no-go zones or custom carpet settings.

That said, the limitation made the cleaning test surprisingly revealing. Without any app help or mapped boundary, both robots had to rely on their built-in navigation, sensors and default cleaning patterns.

I have owned Roborock vacuums before and have had a chance to test out the app with them. The app itself is intuitive and easy to use, and it’s easy to set up no-go zones and cleaning schedules through it. For this comparison, though, I focused my firsthand testing on what I could fairly judge side by side: cleaning performance, obstacle detection, edge behavior, mopping and dock maintenance.

The QV 35A did a solid job, but needed more patience

The QV 35A can handle quite a few daily messes without much fuss. While it might not have the attention-grabbing suction of the newer model, it’s still a capable robot vacuum and even maps floors with ease. If you have a busy household, it’s a great pick for you. 

Suction: 8,000Pa | Navigation: LiDAR | Dock features: Auto dust emptying, auto tank refilling, mop self-washing | App features: Room mapping, no-go zones and cleaning schedules

The QV 35A handled basic cleanup well. Once it started moving, it easily navigated the area, mopped lightly and even picked up any visible debris. It also returned to the dock on command and began the self-cleaning process, which is one of the big conveniences of Roborock’s all-in-one dock system.

It wasn’t perfect, though. In a large office space, it had a little trouble navigating without any preset zones, and there were moments where crumbs were pushed around before they were picked up. Now, this isn’t unusual given I did not give it a designated cleaning area since there was no Wi-Fi for the app, but it did make the QV 35A feel more like a maintenance cleaner than a true vacuum that can keep my home clean.

Still, for everyday use — pet hair, light crumbs, dust and routine floor care — the QV 35A makes sense. It has the core features most people want: LiDAR navigation, Reactive Tech obstacle avoidance, dual spinning mops, auto dust emptying, tank refilling and mop self-washing.

The Qrevo S Pro felt faster and smarter in the same test

With a stronger suction and a better mopping and drying system, this vacuum builds on the QV 35A and makes it better. For cluttered homes with thick carpets with pet hair, this is the better option. 

Suction: 18,500Pa | Navigation: LiDAR | Dock features: Auto dust emptying, auto tank refilling, detachable dock base, hot-water mop washing and warm-air drying | Mop washing: 75°C hot water | Mop drying: 45°C warm air |App features: Room mapping, no-go zones and cleaning schedules

The Qrevo S Pro was the model that felt more upgraded during hands-on testing. It moved through the space more quickly and seemed to cover a larger area in less time. It also did a better job getting under tables and working around furniture legs instead of simply cleaning around them.

The biggest difference, though, was how it reacted to debris. When this robot vacuum detected dirt, it turned back and went to clean that area again, giving it a thorough clean even without me having to set anything on the app. I liked that the vacuum was not just moving in a pattern, but seemed to be actually moving toward where the dirt was.

Its edge cleaning and sensing also felt stronger. When I stood in front of it, the robot recognized the obstacle and adjusted its route tightly around the perimeter. For a household with dining chairs, pet bowls, shoes or everyday clutter, that kind of obstacle behavior matters.

The one con? It did seem like this vacuum had trouble docking. It took a good five turns before actually entering the dock. I checked to see if I had made a mistake setting the pad up, but everything seemed fine, so this was definitely more of a one-off situation.

Where the Qrevo S Pro really pulls ahead

The clearest upgrade is suction power. The Qrevo S Pro offers 18,500Pa, while the QV 35A offers 8,000Pa. This upgrade is important, as it shows that the newer model is better suited for houses with pets, lots of hair clumps or homes with thicker rugs. While I couldn’t fully test this in the office, I did notice the Qrevo S Pro had slightly stronger suction during the test, based on how much dirt it removed.

The dock is the other major upgrade. The QV 35A already gives you a lot of convenience with auto dust emptying, auto tank refilling and mop self-washing. But the Qrevo S Pro improves the maintenance experience with 75°C hot-water mop washing and 45°C warm-air drying. I actually checked to see if the mop was dry on the S Pro, and it was, even though I had this robot vacuum run for longer. 

Why does this matter? Well, if you’re in a home with heavy kitchen spills, greasy floors or even pet residue, this mop cleanup feature can be a game-changer. Hotter mop washing is designed to help break down grime more effectively, while warm-air drying helps the mop pads dry faster and reduces the chance of musty odors.

Final verdict: Which one is worth buying?

Now, they’re both very capable robot vacuums, and right now at their sale prices, the price difference is only about $50. They also look very similar, so it all comes down to what kind of cleanup you’re looking for.

The QV 35A is the better pick if you want a capable robot vacuum and mop with an all-in-one dock at a more accessible price. It can handle routine crumbs, dust and light mopping, which makes it a great pick for homeowners.

The Qrevo S Pro is the better pick if you want the stronger, more future-proof model. The suction upgrade is significant; the navigation is more accurate and the hot-water wash/warm-air dry dock makes it feel more like a premium cleaning system than a basic robot vacuum.

Because of Prime Day deals, the Qrevo S Pro’s price inches quite close to the QV 35A ( the S Pro is priced at $449.99, and the 35A is at $399.99 during Prime Day), making this a great time to upgrade to this robot vacuum. That said, whichever you choose, your floors won’t be disappointed.

Your Amazon Prime Day FAQs, answered

What is Amazon Prime Day and when is it?

Prime Day is Amazon’s biggest sale of the year, offering deep discounts on bestsellers and everyday essentials. This year’s event runs from Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

How long is Prime Day?

This year, shoppers can take advantage of four days of Prime Day deals: Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

What’s new about Prime Day in 2026?

In addition to pushing up the sale to June, Amazon is including several new programs and promotions, including:

• Today’s Big Deals program: New daily discounts up to 50% off or more
• New deals dropping as often as every five minutes during the sale
• Prime members gain access to exclusive travel deals
• Prime members who spend $15 or more on a qualifying online grocery order have a chance to win free groceries for a year
• Prime members who set up a deal alert with Alexa have a chance to win a $1,000 Amazon gift card
• Through June 26, Prime members can get a large pepperoni or cheese pizza from Little Caesars for $5
• Through June 26, Prime members who purchase a new car through Amazon Autos get a $1,500 Amazon gift card

Do you have to be an Amazon Prime member to shop?

Prime Day and all its amazing discounts are exclusively available to Prime members. However interested shoppers can grab a 30-day free trial to try Prime, and its many benefits with no strings attached, and gain access to exclusive deals and the convenience of fast, free shipping.

What are the best deals?

From reporting on Amazon sales for years, we can tell you for certain that Prime Day is the ideal time to stock up on beauty and skincare staples, score big-ticket tech for less, bestselling vacuums, and comb through the massive catalog of Amazon best-sellers. Plus, since this year’s sale runs before the Fourth of July Americana-themed deals and summer hosting essentials.

Is it worth it?

We certainly think so! Prime Day is a great chance to score deals on thousands of best-sellers, top tech and appliances and every day essentials. Our team diligently sorts through all the offers to find you only the very best items to grab on sale.

When is the next Prime Day?

Already wondering when Amazon’s next Prime Day is? We expect Amazon’s October Prime Big Deal Days sale event to return in fall 2026. Follow Post Wanted’s around-the-clock coverage, and you’ll be the first to know about headline-worthy sales. Click here to find all of the best deals.

For over 200 years, the New York Post has been America’s go-to source for bold news, engaging stories, in-depth reporting, and now, insightful shopping guidance. We’re not just thorough reporters – we sift through mountains of information, test and compare products, and consult experts on any topics we aren’t already schooled specialists in to deliver useful, realistic product recommendations based on our extensive and hands-on analysis. Here at The Post, we’re known for being brutally honest – we clearly label partnership content, and whether we receive anything from affiliate links, so you always know where we stand. We routinely update content to reflect current research and expert advice, provide context (and wit) and ensure our links work. Please note that deals can expire, and all prices are subject to change.