Roborock Saros Z70: the £1,799 robot vacuum with an arm is on sale in the UK

A robot vacuum with a folding mechanical arm sounds like a trade-show stunt that should never have left Las Vegas. Yet the Roborock Saros Z70 — first shown at CES 2025 and billed as the world’s first robot vacuum with an integrated robotic arm by TechJuicy — is a real machine you can put in a British hallway today. The number that resolves at the checkout is the one worth staring at: £1,799. That is the figure on Roborock’s own UK store, and it matches the RRP Trusted Reviews quotes in its review. So let’s settle the price first, because that is what anyone searching for this machine actually wants pinned down — and then we can talk about the arm.

What £1,799 actually buys you

Take the arm out of the equation and the Z70 is, on paper, a flagship cleaner with the lot. Roborock quotes 22,000Pa of suction, a figure Trusted Reviews confirms in testing, alongside a dual-pad mopping system that washes its own cloths with 80°C hot water and air-dries them at 55°C. The Multifunctional Dock 4.0 self-empties into a bag Roborock rates for roughly 60 days of debris, refills the warm-water tank, doses its own detergent and fast-charges the robot in about two and a half hours. Navigation is handled by the StarSight 2.0 system rather than a spinning LiDAR turret, which is how Roborock gets the body down to 7.98cm — low enough to clear most British sofas. Trusted Reviews logged a 180-minute runtime at the lowest suction setting. None of that is the headline, but it matters: it means that if the arm never worked at all, you would still own a very capable robot vacuum.

There is a lot of loose talk online about the Z70 going for less — £1,599, and various deeper cuts later in its life. I would treat those with caution. The price that holds up against the manufacturer’s own listing is £1,799 direct from Roborock UK. It launched marginally under that, around £1,699, but the standing RRP is the higher figure, and that is the one to budget against rather than a launch teaser that may not come round again. For context, the European RRP came in at €1,799 per Notebookcheck’s roll-out report, so the UK is squarely in line with the continent rather than being quietly stung with a “British tax” on top. Roborock’s global product page tells the same story, and buying through the UK store is also how you keep the manufacturer’s own warranty and support in the loop rather than chasing a grey-import seller for spares.

The arm is the whole reason this costs what it costs

Strip the arm away and £1,799 is indefensible — you can buy an excellent flagship robot vacuum that mops, self-empties and navigates beautifully for hundreds less. So the entire case for the Z70 rests on that hinged limb folding out of its lid. The hardware itself is serious: a five-axis foldable arm Roborock calls OmniGrip, with its own camera, LED light and precision sensors, rated to lift objects up to 300g. Roborock says it recognises 108 pre-programmed items — socks, crumpled tissues, sandals, small towels — and can be taught up to 50 more, picking them up and relocating them rather than ramming, beaching itself, or smearing them across your floor. As a piece of engineering on a £1,799 appliance, it is genuinely novel and I won’t pretend otherwise.

Here is the part the launch copy skates over. Trusted Reviews, the one outlet on this list to actually live with the machine, calls the arm “very hit-and-miss” — unreliable object detection, execution that fails as often as it works — and signs off with “a clever idea but not quite there yet”. That is the most consequential sentence written about this product, and it is not in any press release. Being first to market with a moving mechanical part — the single component on any appliance most likely to wear, jam or fail — is exactly the kind of pioneering you let other people’s wallets fund. It also reframes the running cost: a self-emptying dock and washable mop pads are proven, serviceable parts; a five-axis grabbing arm is not, and nobody yet knows what a replacement or a repair on one will cost in two years’ time.

At £1,799 you are not buying a cleaner floor. You are buying the privilege of being Roborock’s beta tester for household robotics — and that is a very different purchase.

The real £300 question: Z70 versus the armless Saros 10

Trusted Reviews frames the decision more usefully than any spec sheet: the Z70 costs about £300 more than Roborock’s own arm-less Saros 10, and for cleaning alone it does not clean meaningfully better. That reframes the whole purchase. You are not weighing the Z70 against a cheap budget bot; you are deciding whether one folding arm of uncertain reliability is worth a £300 premium over a near-identical flagship that shares the same suction, the same hot-wash mopping and the same self-maintaining dock.

Put plainly: the £300 buys you the arm and the arm alone. If you trust a first-generation moving part to earn that, the Z70 is the only machine that offers it. If you don’t, the Saros 10 is the rational buy and you will never notice the difference on the floor.

Who should buy it, and who should wait

I’ll take a clear line. If you are an early adopter with money to spare, you genuinely want the most advanced piece of home robotics on a UK shelf, and you treat the arm as the point rather than a worry, the Z70 is a legitimately exciting buy — there is nothing else quite like it. Buy it from Roborock direct so you are dealing with the manufacturer on warranty, because a first-generation moving part is precisely where you want the shortest possible support chain rather than a third-party retailer passing you back and forth.

If, on the other hand, you mainly want spotless floors with the least fuss, this is not your machine and £1,799 is not your price. The armless Saros 10 — or a rival flagship — will clean just as well, cost hundreds less, and carry no novel mechanism that a reviewer has already watched misfire. The arm is a reason to want the Z70; on this evidence it is not yet a reason to need it.

The bit I’d want answered before I’d spend £1,799

What would move me from interested to spending is time. I want to see how that OmniGrip arm holds up after a year of real British clutter — kids’ toys, charging cables, the odd sock it’s supposed to recognise — and how Roborock handles repairs when the first failures come in, given a reviewer is already calling its hit rate unreliable on day one. The £1,799 isn’t the problem; plenty of premium kit earns that, and the cleaning hardware here is flagship-grade and proven. The problem is that the one thing justifying the premium is brand new, unproven, and already wobbling in testing. Right now the Saros Z70 is the most interesting robot vacuum you can buy in Britain, and also the one I’d most want someone else to live with first. If you can afford to be that someone, enjoy it — you’ll own a genuine first. If you can’t, the price will only get friendlier from here, and the arm only more proven.