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Brand guide · United Kingdom · 18 September 2026

Which iRobot Roomba should you buy?

Roomba is the name that made robot vacuums a category, and the range is now the hardest on this site to research. Both models below are sold on iRobot's UK store at prices we confirmed. Neither has the depth of independent testing the Chinese brands attract, and one of them we could find no credible review for at all.

Which iRobot to buy

Every iRobot we have verified, best first. Prices are iRobot’s own UK store, on the date shown.

    The range, decoded

    What the names mean in the UK line-up, and which suffixes change the machine.

    Roomba Max

    The current flagship line. Max models carry the AutoWash dock and the newest navigation.

    Roomba Plus

    The mid-range. Same dock family, fewer of the newest features.

    Combo

    Any Roomba that mops as well as vacuums. A Roomba without 'Combo' in the name does not mop.

    A warning about model numbers

    iRobot uses different SKUs per country — the Max 775's UK product code is X285242 and the US one is X285020. A review or price for one is not valid for the other, which is why we check the UK page specifically.

    Every other iRobot in the catalogue

    15 more models we track but have not yet verified to the same standard. Profiles link to the official product source.

    Questions people ask about iRobot

    Which Roomba should I buy in the UK?

    The Max 775 Combo is the more capable machine. The Plus 505 Combo is the one independent reviewers have actually tested. If published evidence matters most to you, that difference is the decision.

    Are Roombas still worth it?

    On price and specification the Max 775 competes with the Chinese flagships. What it lacks is their volume of independent testing — and a thin evidence base is exactly what this site is built to show rather than paper over.

    What does Combo mean on a Roomba?

    That it mops as well as vacuums. Both models here are Combos, and both use a roller mop rather than spinning pads.

    Why is the customer rating not shown as a score?

    Because 4.52 out of 5 from 317 buyers on iRobot's own store is a retailer rating, not an independent test. We keep the two apart, and we only show expert scores where an outlet published one.