This robot vacuum delivers impressive mopping, but there are some quirks to know about before you buy

The SwitchBot S20 shines in the mopping department, thanks to a self-cleaning roller mop. Vacuuming is decent, too, and it boasts some of the best object detection I've ever seen. However, there are some quirks. It's rather noisy, and can be erratic in its navigation. It also isn't good at switching back to vacuuming following a mopping session. However, if mopping is your priority and you don't mind keeping the two functions separate, it's still a solid buy.

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  Strong obstacle avoidance

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  Effective roller mop

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  Roller cleans itself as it mops

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  Comprehensive clean station

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  Decent vacuuming

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  Can't vacuum with damp mop

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  Generally noisy

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  Some erratic navigation

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  Can't have dock in no-mop zone

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  Bot and dock both large

SwitchBot S20: two-minute review

The SwitchBot S20 is a hybrid robot vacuum with a particularly impressive mopping setup. While most robot vacuums feature flat mop pads that ...