AI Ultra Self-Empty
An older, vacuum-only Shark that maps your home with a laser and empties itself into a bagless base. It picks up well on hard floors, but it bumps into small objects and struggles with hair pressed into carpet.
See the alternatives below, or switch market.
The short version
The AI Ultra Self-Empty is a straightforward vacuuming robot from Shark's US range. It maps your home with a spinning laser, can go over rooms twice in a criss-cross pattern, and tips its dirt into a bagless base, so there are no bags to buy. It doesn't mop at all. It's been sold under several model numbers, including RV2502AE, AV2501AE, AV2501S and the current AV2511AE, which differ mainly in colour and base size.
The trade-off is how it copes with clutter and hair. Despite the name, it has no camera to recognise objects, so socks, cables and pet bowls need picking up first. Testers also found long hair wraps its brush and fur rubbed into carpet is hard going. In Europe, the AI Ultra name is used for a different robot with a mop, which this page doesn't cover.
Our take: Buy it if you want a no-fuss, bag-free vacuum for a reasonably tidy home, mostly hard floors, and you don't care about mopping. Skip it if you have a heavily shedding pet on carpet, or floors covered in cables and toys. The Roborock Q8 Max+ is the better-reviewed self-emptying vacuum, and Shark's own Matrix Plus 2-in-1 adds a vibrating mop if you want one.
Where it sits in Shark’s range
What reviewers found
Three sources: RTINGS measured it in its lab, Vacuum Wars bought and tested the AV2501AE version, and Modern Castle ran it through measured tests in its office. Vacuum Wars and Modern Castle both rate its everyday pickup, especially on hard floors, and like the bagless base. All three agree it has no real obstacle recognition. They differ on pet hair, and on the app, which Modern Castle found intuitive and Vacuum Wars found buggy.
RTINGS, lab test · Vacuum Wars, lab test · Modern Castle, hands-on, Feb 2024
Strong everyday pickup, especially hard floors
Modern Castle measured 99.8% debris removal on hardwood and about 95% on both low- and high-pile carpet. Vacuum Wars found it above average in its embedded-sand carpet test and said surface pickup was good all round, including kitty litter on hard floors, even on lower power. For crumbs, dust and grit in a normal home, it does the main job well.
Hair is where opinions split
Vacuum Wars said it did perfectly with pet hair, though long hair still needs cutting off the brush now and then. Modern Castle rubbed hair into high-pile carpet and found more than half left after two passes. RTINGS rated it poor for pet hair overall, clearing it from bare floors and thick carpet but struggling on low-pile carpet, and saw long hair wrap the brush. With a shedding pet, expect regular brush cleaning and some missed fur.
It doesn't really dodge objects
The AI in the name is mostly marketing, according to Vacuum Wars: there's no camera-based object recognition, so it won't avoid things too low for its laser or too light to trigger its bumper. Modern Castle saw it fail to avoid three of its four test objects. Vacuum Wars also found it too persistent in tight spots and relied on no-go zones to stop it getting stuck. Tidy the floor first.
Good mapping and coverage
Vacuum Wars recorded close to complete coverage of both its small and large test rooms, and Modern Castle watched it clean a cluttered 1,000 sq ft office in 70–80 minutes, returning to base without getting stuck. That's slower than the average robot Modern Castle has tested, and Vacuum Wars found battery life below average, so larger homes may need a recharge mid-clean before it resumes.
Bagless base, fussy app
Vacuum Wars and Modern Castle both liked the bagless base. Vacuum Wars found it emptied the robot's bin reliably after regular runs, though not after two weeks of built-up cat hair, and RTINGS noted the base's HEPA filter but would rather it used bags for cleaner emptying. On the app, Modern Castle found it intuitive but was limited to one scheduled clean a day, while Vacuum Wars often had to restart it and missed a live view of the robot on the map.
Covers the vacuum-only AI Ultra Self-Empty sold in the US under RV2502AE, AV2501AE, AV2501S and AV2511AE; RTINGS says these differ mainly in colour and base capacity. Vacuum Wars tested the AV2501AE. The European AI Ultra 2-in-1 is a different robot.
Prices
Where to buy the AI Ultra Self-Empty in Australia
Not sold in Australia. Switch market above, or see the alternatives below.
Before you buy
The questions people ask about this one
Will it avoid cables and pet mess?
No. Vacuum Wars found it has no camera-based obstacle avoidance, only its laser and bumper, and Modern Castle saw it fail to avoid three of four test objects. Pick up cables, socks and anything a pet might leave before every run.
Does it fit under low furniture?
Only if you have a decent gap. Shark doesn't publish the robot's height, but RTINGS found it needs 10.5cm of clearance to get under furniture. Measure under your sofa and bed before you buy.
How does it handle rugs and door bars?
Shark doesn't give a climbing height. RTINGS measured the tallest threshold it could get over at 1.9cm, which covers most low door bars but not chunky ones. Modern Castle found carpet pickup strong on both low and high pile, apart from embedded pet hair.
How often do I have to empty anything?
Shark claims the bagless base holds up to 60 days of debris, per the specifications. Vacuum Wars found it emptied the robot reliably after regular runs, and Modern Castle rated maintenance excellent with no bags to buy. You'll still need to clean filters and cut long hair off the brush.
Is it noisy?
It's average. Modern Castle measured 64.4 to 67.3dB across suction modes and 79.8dB while the base empties, loud enough to interrupt a conversation nearby. RTINGS called it very quiet, which helps if a pet dislikes noise.
Compare with
Q8 Max+
A self-emptying vacuum that reviewers rate for pickup and mapping, with a basic mop added.
Edges and small obstacles still catch it out, and long hair tangles on its rollers.
RV20 Max Plus
A compact self-emptying robot with laser mapping that suits smaller homes.
It can get caught under low furniture and on loose objects.
PowerDetect NeverTouch Pro 2-in-1
Shark's step up, with mopping and a dock that refills water and looks after the pad.
Testers found its mopping and edge cleaning less convincing than the dock suggests.
Full specifications
Figures come from the manufacturer’s product page unless a source is named. A blank means nobody we trust has confirmed it.
Owner reviews
Own a AI Ultra Self-Empty?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner reviews are shown separately from expert tests and never mixed into the score.
Sources
Everything cited on this page. Expert scores are shown as the reviewer gave them.