The world’s best robot vacuums – such as the Roomba Combo j9 Plus – don’t just suck up dirt from your carpets, they’re also smart mops that scrub your hard floors whenever you tell them to. Unfortunately, if you want a 2-in-1 robot cleaner from a reliable brand like iRobot you can expect to pay a fairly high price (the aforementioned j9 vacuum can set you back up to $1,399.99 / £1,249, for example). Or at least, until now.That’s
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