Which is better for carpets and pet hair?

The Navigator Lift-Away. Its corded suction and full-size brushroll are built for deep carpet cleaning, and it is marketed for pet homes. The robot handles pet hair on floors but buyers report hair wrapping its brushroll.

Is the robot worth the extra money?

Only if hands-off cleaning matters to you. The AV2501S costs $259.99 to $279.99 since October 28, 2026, against $118.00 for the Navigator. You pay for scheduling, mapping, and a base that empties itself for about 30 days.

Which one cleans stairs?

The Navigator. The Lift-Away canister detaches so you can carry it up stairs and into cars. The robot cannot climb stairs and needs a flat run to map.

Do both have HEPA filtration?

Yes. The Navigator has an onboard HEPA filter, and the AV2501S uses a HEPA self-empty base. Both trap fine dust and allergens; the difference is corded versus robotic cleaning.

Which needs less maintenance?

The AV2501S between emptyings. Its base holds about 30 days of debris, though you still clear hair from the brushroll. The Navigator's 0.9 qt cup is emptied by hand, but it has no battery or app to manage.

Can I run the robot while I am out?

Yes. The AV2501S supports app scheduling plus Alexa and Google Assistant, so it can clean while you are away. The Navigator only runs while you push it.

Shark Navigator Lift Away Upright Vacuum vs Shark AV2501S AI Ultra Robot Vacuum

Buy the Navigator Lift-Away if you want strong corded suction for carpets and pet hair at the lowest price. Buy the AV2501S if you want a robot that cleans on a schedule and empties itself for a month. The Navigator is $118.00, and the AV2501S has ranged from $259.99 to $279.99 since October 28, 2026, so the robot costs roughly $142 to $162 more.

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