If you want mapping plus self-emptying at a moderate price with no bags to buy, get the Shark AI Ultra AV2511AE with the bagless self-empty base; if your home has pet accidents, charging cords and shoes scattered about and you will pay a premium for a robot that recognizes and avoids them, get the iRobot Roomba j7+ with the Clean Base. The Shark maps with 360° LiDAR, cleans in a Matrix Clean grid and empties into a bagless base that holds up to 60 days of debris. The Roomba maps with a camera-based PrecisionVision system, promises to avoid pet waste or replace the robot, and empties into enclosed Clean Base bags that hold 60 days. On 09/13/2026 the Shark AV2511AE in Black/Silver was In Stock on Amazon US at $299.99, shipped and sold by Amazon.com with delivery as soon as Wednesday, Sep 16; the Roomba j7+ (7550) was listed at $789.95 with only 10 left in stock, shipped and sold by third-party seller Deal Suppliers LLC with delivery Sep 14–15.
Choose by your situation
| Situation | Model to consider | Main tradeoff |
|---|---|---|
| You want scheduled whole-home cleaning with mapping and self-emptying at the lower price, and you prefer never buying dust bags | Shark AI Ultra AV2511AE | Shorter listed runtime (up to 90 minutes per the Amazon listing, with recharge and resume); the variant-block price is hidden until cart on some views, though the This-item block showed $299.99 In Stock. |
| Pets or kids leave waste, cords, socks and shoes on the floor, and you want the robot to recognize and steer around them | Roomba j7+ (7550) | About 2.6 times the observed Shark price; ships and sold by a third-party seller rather than Amazon; enclosed bags are a running cost. |
LiDAR grid against camera avoidance, side by side
| Criterion | Shark AI Ultra AV2511AE | Roomba j7+ (7550) |
|---|---|---|
| Navigation and mapping | 360° LiDAR with Precision Home Mapping; adapts to everyday changes and works in all light conditions including at night, per SharkNinja; Matrix Clean precision grid takes multiple passes over messes | Camera-based PrecisionVision Navigation that identifies and avoids pet waste, charging cords, socks and shoes; Imprint Smart Mapping learns the floorplan, stores multiple maps and cleans scheduled rooms on demand |
| Self-emptying | Bagless XL base holds up to 60 days of dirt and debris; no disposal bags to buy | Clean Base Automatic Dirt Disposal with enclosed bags holding 60 days of dirt and debris; bags trap dust out of sight but must be repurchased |
| Runtime and resume | Up to 90 minutes per the Amazon listing, with recharge and resume; SharkNinja describes a 120-minute runtime with recharge and resume on its product page | 120-minute Battery Life in the Amazon spec table, with Smart Recharge and Resume that charges only as long as needed before finishing the job |
| Cleaning system | High suction with a self-cleaning brushroll that digs into carpets, engages hard floors and resists hair wrap | 3-Stage Cleaning System with 10x power-lifting suction (maker compares against the 600 series), edge-sweeping brush and dual multi-surface rubber brushes |
| App and voice | SharkClean app for scheduling, starting and targeting rooms or spots; voice control via Amazon Alexa or Google Assistant | iRobot Home app for room scheduling, keep-out thinking, spot cleaning and clean-while-away; works with Alexa, Siri and Google voice assistants |
| Listing reception | 4.0 out of 5 stars across 23,804 ratings on the observed Amazon listing | 3.8 out of 5 stars across 8,582 ratings on the observed Amazon listing |
Shark AI Ultra AV2511AE: the bagless value pick
The Shark AI Ultra in Black/Silver suits buyers who want the two expensive features — home mapping and self-emptying — without the premium price or bag subscriptions. LiDAR mapping works regardless of room lighting, the Matrix Clean grid covers rooms in multiple passes, and room or spot targeting runs from the SharkClean app or a voice command. Its limits are endurance and friction: the Amazon listing puts runtime at up to 90 minutes before a recharge-and-resume cycle, against the Roomba's 120-minute spec, and the variant block hides the price behind an add-to-cart step on some views. SharkNinja backs it with a one-year limited warranty.
Roomba j7+ (7550): the obstacle-avoidance pick
The Roomba j7+ (7550) with Clean Base suits homes where the floor is never tidy when the robot runs. PrecisionVision uses the onboard camera to recognize pet waste, cords, socks and shoes, and iRobot's Pet Owner Official Promise says the robot will avoid pet waste or be replaced, with additional terms. Imprint Smart Mapping stores multiple maps, schedules rooms and suggests extra cleaning during shedding or allergy seasons. Its limits are money and seller: $789.95 observed against the Shark's $299.99, replacement bags on an ongoing basis, and a buy box shipped and sold by third-party Deal Suppliers LLC rather than Amazon or iRobot, so confirm the seller and returns before ordering.
Where to check the exact variants
Compare the Shark AI Ultra AV2511AE in Black/Silver with the bagless self-empty base (observed In Stock at $299.99 on 09/13/2026, shipped and sold by Amazon.com) against the Roomba j7+ (7550) with Clean Base Automatic Dirt Disposal (observed at $789.95 with only 10 left in stock on 09/13/2026, shipped and sold by Deal Suppliers LLC). If avoidance matters more than money, pay for the Roomba; otherwise the Shark maps and empties itself for far less.