Under $300 you can get a robot that keeps crumbs and dust under control. What you usually give up is smart mapping, strong obstacle avoidance, or a self-empty dock. Decide which of those you can live without first.
If your place is small and mostly one room, a basic random or gyro-navigated robot can be plenty. If you have several rooms, put your money toward mapping over extra suction numbers.
- Mapping or no mapping at this price, and what that means for coverage
- Bin size, since budget bots rarely self-empty
- Real-world runtime vs your square footage
- Boundary strips or virtual walls included in the box
- Whether filters and side brushes are cheap and easy to find
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Also see: Home · How to Choose a Robot Vacuum · Best Robot Vacuums of 2026 · Affiliate Disclosure