Shark AI Ultra AV2501S vs Roborock Q7 M5+

For most homes, buy the Roborock Q7 M5+ - our review. It publishes 10,000Pa where Shark publishes nothing at all, and it is one of only two machines on this site whose anti-tangle design covers the side brush as well as the main brush - which is where long hair actually wraps. Buy the Shark AI Ultra AV2501S - our review - if you would rather never buy a dust bag: its base is bagless and true HEPA, filtering 99.97% down to 0.3 microns, so the dock costs nothing to keep running and is the better answer in a dust-sensitive household. The Shark's catch is its dock interval - 30 days against the Roborock's stated seven to nine weeks.

This pairing comes up because the two machines land within about thirty dollars of each other, both empty themselves, and both map with a laser - so the usual tie-breakers are gone and what is left is a genuinely clean trade between two different philosophies.

#	Product	Best for	Score	Price
01	Roborock Q7 M5+10,000Pa, a self-emptying dock, and the only anti-tangle system here that treats the side brush as part of the problem.	Best for pet hair	8.2out of 10	$249.98 - View on Amazon $359.9931% off #ad Price last verified October 31, 2026. How we are funded
02	Shark AI Ultra AV2501SShark's step-up machine, discounted hard and now well under the ceiling. LiDAR mapping, a bagless HEPA dock and a self-cleaning brushroll - and still no published suction figure.	Best Shark under $300	7.5out of 10	$279.99 - View on Amazon $549.9949% off #ad Price last verified October 31, 2026. How we are funded

Both machines scored on the published rubric from How We Pick: suction 25%, navigation 25%, pet hair 20%, running cost 20%, setup 10%. Editorial judgments about published specifications, not test results.

When two machines share a price, a dock and a navigation class, most comparison criteria cancel out. Four decisions survive, in this order.

1. What the dock costs you forever. One takes a sealed bag you replace; one takes none. Over three years that gap is larger than the price difference between the machines, and it is the clearest thing on this page.
2. Whether the manufacturer publishes a suction figure at all. One prints a number you can argue with. The other prints an adjective. On a site that ranks published specifications, that is not a small difference.
3. What happens to hair. Both claim an answer and they are not the same answer - one redesigns the brush, the other strips it clean mechanically, and only one of the two says anything about the side brush.
4. How long between dock emptyings. Published intervals differ by more than double here, and the shorter one belongs to the machine with the better filtration, which is an awkward combination for the buyer it is aimed at.

Worth clearing out of the way, because it is most of the machine. Both empty themselves into a base, which is the feature that decides whether a robot vacuum keeps working in month six. Both map with a 360-degree laser rather than bouncing, so both support scheduling, room selection and no-go zones drawn in an app - the argument for that is on is LiDAR worth it. Both take voice control through Alexa and Google Assistant. Both are round, so neither gets properly into a corner, and both sit in the same part of this site's price range.

Everything else here is a detail. The Roborock empties into a 2.7-liter sealed bag that Roborock states lasts seven to nine weeks; the Shark empties into a bagless bin with a true HEPA filter that Shark states holds 30 days. So the Roborock asks you to buy a consumable roughly six to seven times a year and never handle the dust; the Shark asks you to tip a bin out roughly twelve times a year and never buy anything.

Which is better depends entirely on why you wanted a dock. If the dock is about convenience, the Roborock wins on interval and the bag cost is the price of that convenience - the three-year arithmetic is on running costs. If the dock is about dust, the calculus inverts twice over: the Shark's base filters to a published 0.3 microns where Roborock publishes no micron figure at all, but a bagless bin has to be tipped out by hand, and that is exactly the moment a sealed bag exists to avoid.

Shark describes this machine's suction as powerful and stops there. No Pascals, no air watts, nothing. That is not evidence the machine is weak - Shark has been making vacuums for a long time and its brushroll engineering is genuinely good - but on a site that ranks published specifications it is a real cost, and it is why this machine scores lower than its hardware might suggest. A specification nobody will print is a specification you cannot argue with.

The Roborock prints 10,000Pa, which matches machines at three times the price. Treat that number with the standing caveat - there is no shared Pascal test standard between manufacturers, so it is comparable within Roborock's range and only loosely across brands - but a published figure you can hold a manufacturer to beats an adjective. The mechanics are in what Pa suction actually means, and the whole published field is on the highest published suction under $300.

Both machines claim an answer to hair wrap and the claims are not equivalent. Shark fits a self-cleaning brushroll - a comb strips hair off the roller as it turns, which is a real mechanism and a good one. Roborock fits a JawScrapers main brush plus a stated 0% hair-tangling side brush.

The difference that matters is the side brush. It is the thin, slow, unshrouded arm at the front corner, and it is the worst hair-wrap point on any robot vacuum - Shark's self-cleaning mechanism is on the main roller and nothing is claimed for the side brush. For a long-haired or shedding household that is the deciding detail, and it is why best for pet hair and best for long human hair both put the Roborock ahead.

• Neither sees objects on the floor. Both map walls with a laser; neither publishes structured-light obstacle avoidance, which under $300 belongs only to the Roborock Q10 S5+. A charging cable will eventually catch either of these out - the mechanisms are separated on obstacle avoidance, ranked.
• Neither will deep-clean medium or high-pile carpet. That limit is weight and battery rather than price, and it applies the same to a $900 machine. The honest threshold is on do robot vacuums work on carpet.
• Neither gets into a square corner. Both are round. Best for corners and edges explains what a side brush can and cannot do about that.
• Neither publishes a body height we can cite, so if the point of your purchase is getting under a low sofa, check best for low furniture instead - it ranks the machines that do publish the figure.

We have not handled either machine. Every figure above is the manufacturer's own, read off the two listings on the date in the sources: Roborock's 10,000Pa, its 2.7-liter bag and seven-to-nine-week interval, its JawScrapers and 0% hair-tangling side brush; Shark's true HEPA 99.97% at 0.3 microns, its 30-day bagless base, Matrix Clean navigation, self-cleaning brushroll and 120-minute runtime. We have not measured suction on either, cannot compare Shark's unpublished figure against anything, have not timed an emptying cycle, and have not tested how much dust a bagless bin releases when tipped out - nobody publishes that. Neither score is a test result; both are judgments about published specifications on the rubric set out on how we pick.