We ran each for two months across hard floors, rugs and pet mess, judging cleaning power, navigation, mopping and how hands-off each really is rather than trusting spec sheets.
A good robot vacuum buys back an hour of your week, and the right one depends on whether you want mopping too, how much you will spend, and whether you would rather have a cordless stick for touch-ups. After running each for two months on real floors and pet mess, here are the picks worth your money.

Strong suction, real mopping and a dock that washes and dries its own mop.

Dependable navigation, a pet-waste promise and a self-emptying base for far less money.

When you want hands-on power for stairs and quick messes, not a robot.
This is the biggest decision. Hybrid robots like the Roborock vacuum and mop, with a dock that maintains the mop for you — ideal for hard floors. Vacuum-only robots like the Roomba cost far less and make sense if you have mostly carpet or do not want mopping. Decide this first and the rest follows.
Good robots map your home and dodge obstacles; the best also avoid pet waste specifically. If you have pets, prioritize proven navigation and obstacle avoidance — the Roomba j9+ even backs it with a guarantee. A robot that gets stuck or spreads a mess is worse than no robot.
Robots handle daily maintenance automatically; cordless sticks like the Dyson clean on demand, everywhere, including stairs and furniture a robot cannot reach. Many homes are best served by a robot for the floors and a cordless for the spots — they solve different halves of the job.
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