Shark AI Ultra AV2501S Review

The Shark AI Ultra AV2501S gives you 360-degree LiDAR home mapping, a bagless HEPA self-emptying base with no consumable to buy, and a self-cleaning brushroll - a combination that is genuinely rare under $300. Shark lists it far above that, and it has been discounted hard. Two things stop it being an easy recommendation: Shark publishes no suction figure at all, and its dock holds 30 days where Shark's own cheaper Matrix Plus publishes 60.

#	Product	Best for	Score	Price
01	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	$239.99 - View on Amazon $429.0044% off #ad Price last verified September 27, 2026. How we are funded

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

Suction: not published. Shark states no Pascal rating for this machine, exactly as it states none for the Matrix Plus. Two brands on this site refuse to publish a suction figure - Shark and iRobot - and on a specification-led ranking that costs both of them real points. It is scored as unverified rather than weak, which is the same treatment every unpublished figure gets under our rubric.

Navigation: 360-degree LiDAR with Matrix Clean. The mapping is the real thing - a laser scan building a home map, with the usual benefits of rows rather than bouncing, and working in the dark. Matrix Clean is Shark's name for a multi-pass grid over a targeted area, which is a genuine idea: rather than one pass in one direction, the machine crosses the same patch more than once at different angles.

The dock: bagless HEPA, 30-day capacity. Bagless is the interesting part and it is a real economic advantage - there is no bag to buy, ever. Against that, 30 days is a short interval by the standards of this price bracket, where bagged docks routinely claim 60 to 90.

A self-cleaning brushroll. A comb strips hair off the roller mechanically as it turns. This is one of the three real answers to hair wrap - the others being anti-tangle geometry and having no brush at all - and we compare them on best for pet hair. It is the reason this machine scores 8.0 for pet hair despite Shark publishing nothing about suction.

Runtime: up to 120 minutes. That is short for the bracket. Machines costing a third as much publish 150 and the Lefant M3 publishes 220.

Here is the oddity this site has been pointing at for a while, and the discount has made it stranger rather than simpler.

Shark's cheaper Matrix Plus publishes a 60-day dock capacity. This machine, which Shark positioned above it and listed considerably higher, publishes 30 days. Both figures come from Shark's own listings. A dock with half the capacity is not a premium feature, and Shark offers no explanation for it - different base footprint, different bin geometry, something - so we cannot give you one either.

That was already the clearest demonstration on this site that price is not a reliable proxy for specification. Now that the step-up machine has been discounted below the one it was positioned above, it demonstrates something further: the price is not a stable signal either. Our cheap vs expensive page makes that argument in full.

At its list price this machine was poor value and we said so. At its current price it is a legitimate contender, because the things it does well - LiDAR mapping, a dock with no consumable, a self-cleaning brushroll - are things that normally cost more. Buying a discounted flagship is often the best value in any category, and this is a reasonable example of it.

What the discount does not change is the missing suction figure or the 30-day dock. A discount improves the price, not the specification, and both of those would still be true if the machine were free. It also does not change the volatility: a machine that has moved this far can move back, so treat the price on this page as the live one.

• Against the Roborock Q7 M5+ (review): the Roborock publishes 10,000Pa and an anti-tangle design on both brushes, and it mops. The Shark answers with a bagless dock and a self-cleaning brushroll. If you want numbers, buy the Roborock; if you never want to buy a dock bag, the Shark has a real argument.
• Against the Tikom L8000 Plus (review): the Tikom publishes 6,000Pa with carpet boost and a 90-day bagged dock, for less. The Shark's advantages are the self-cleaning brushroll and the bagless economics.
• Against Shark's own Matrix Plus: the Matrix Plus publishes double the dock capacity. We cannot give you its live price, because its listing does not return catalog data through the retailer's feed - which is a problem in itself if you are trying to compare the two.

Someone who wants laser mapping and a self-emptying dock, does not want a consumable to reorder for the rest of the machine's life, and has a shedding pet the self-cleaning brushroll can earn its keep against. That is a coherent buyer and this is a good machine for them at the current price.

It is not the machine for someone who shops on specifications, because the headline one is missing. And it is not the machine for a large home, where a 120-minute runtime and a 30-day dock will both bite sooner than you would like - that case is covered on best for large homes.

We have not handled this machine. Everything above is read from published specifications and the manufacturer's own documentation, cited below. These are the specific claims we could not check:

• The suction. Shark publishes no Pascal figure for this machine, so it cannot be ranked against anything, and we have not measured it.
• The HEPA claim for the dock. Shark states HEPA filtration but publishes no micron figure for this model, unlike iRobot's 0.7-micron claim on its own dock.
• The 30-day dock capacity, and how much shorter it runs in a home with pets.
• Why the dock holds half what Shark's own cheaper Matrix Plus holds. Shark does not explain it and we will not invent a reason.
• How much of the brushroll's hair the self-cleaning comb actually removes over months of use.
• What Matrix Clean measurably recovers compared with a single pass. Shark describes the behavior but publishes no figure for it.
• The height of the machine, which Shark does not publish.
• Noise. No decibel figure is published, by Shark or by anyone else in this price range.
• How long the current discount lasts. This machine has been listed far higher.

That list is not a disclaimer bolted on at the end. It is the actual scope of this review, and anywhere a competitor's confident phrasing implies they checked these things without saying how, it is worth asking the same question of them.