Saros Z70
4 independent reviewsRead the findings →Roborock's slim robot vacuum with a folding arm meant to pick up socks and slippers. It's an excellent hard-floor cleaner and mop. Its arm is the catch: it doesn't tidy up reliably, so don't pay extra for it.
Updated
Check the manufacturer’s site for current availability.
Where it sits in Roborock’s range
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What reviewers found
RTINGS tested it in its lab, while TechRadar, Trusted Reviews and Tech Advisor used it at home. Hard-floor cleaning and mopping drew praise, but carpet pickup and hair tangling were more hit and miss. All three home reviewers found the arm's automatic pickup unreliable. So judge it as two things: a strong hard-floor cleaner and mop, and an arm that doesn't work reliably.
RTINGS, lab test, Jun 2025 · TechRadar, hands-on, 2 weeks at home, May 2025 · Trusted Reviews, hands-on, Jul 2025 · Tech Advisor, hands-on, Aug 2025
Hard floors
Reviewers rate it highlyRTINGS found it collected nearly everything on hard floors, edges and corners included. Trusted Reviews cleared all its test flour, and TechRadar got almost everything off lino in one pass.
Carpet and rugs
Mixed resultsTechRadar cleared all but one oat flake on Max, and Trusted Reviews was pleased too. RTINGS found low-pile pickup weaker, and with the side brush retracting on carpet it left debris along edges and in corners.
Pet hair
Reviewers found problemsHair tangles. Trusted Reviews saw human hair wrap round the brush, and Tech Advisor's roller matted so badly with long hair and cat fur that it had to be cut free.
Mopping
Reviewers rate it highlyTrusted Reviews lifted coffee, red wine and dried mud, and most of a stubborn ketchup stain after four passes. TechRadar liked how the swinging pad reached under the edges of cabinets.
Navigation and obstacles
Mixed resultsMapping is quick and it avoids most things, including pet mess for RTINGS and Trusted Reviews. But the pick-up arm proved unreliable for every home tester, and Tech Advisor found coiled cables still caught it out.
Dock and upkeep
Reviewers rate it highlyTech Advisor called it a high-quality, full-service dock, and Trusted Reviews expects the dust bag to last around two months, with the mops washed and dried for you.
App and software
Reviewers rate it highlyTech Advisor found the app well designed and easy, with fine control over rooms and schedules, and Trusted Reviews called it clever and customisable.
Noise
Not enough evidenceOnly TechRadar judged noise, finding some dock functions a little noisy and hearing a constant rattle from its sample.
Reliability and support
Not enough evidenceThese tests say little about how it holds up long-term or what Roborock's support is like. There's a longer follow-up video linked, but its findings aren't included here.
Value
Reviewers found problemsYou pay a lot extra for an arm that doesn't work reliably. Tech Advisor couldn't recommend it until that's fixed, and Trusted Reviews points buyers to the armless Saros 10, which cleans as well for less.
Verdicts come from independent, hands-on, finished reviews. An area needs at least two of them before we say more than “Not enough evidence”. We don't score robots ourselves. How this works
The arm isn't ready to rely on
TechRadar didn't get one fully successful automatic tidy in two weeks. In dim light it labelled sandals and a sock as carrier bags, fumbled a strappy sandal, and once put socks down 14 inches from where it found them. Trusted Reviews saw it ignore a sock and a tissue, then catch its claw inside a shoe at the drop-off point. Tech Advisor watched it lift a sock and set it down in the same spot, and only had to rescue the robot when the arm was out.
Remote control works better
TechRadar found steering the arm yourself through the app easier than leaving it to pick things up on its own. Trusted Reviews still found it simpler to pick the item up by hand. At launch, the supported objects were socks, sandals, crumpled tissues and small towels under 300g. Updates may add to that list, but the results here are for the software actually tested.
Superb on hard floors and mopping
RTINGS called hard-floor pickup remarkable, with nearly everything collected, edges and corners included. Trusted Reviews cleared all its test flour from hard floor, and TechRadar got almost everything off lino in one pass. Mopping is just as strong: Trusted Reviews lifted coffee, red wine and dried mud, and most of a stubborn ketchup stain after four passes, while TechRadar liked how the swinging pad reached under the edges of cabinets. For kitchens and hallways, it's as good as robots get.
Carpet edges and long hair
Testers split on carpet. RTINGS found low-pile pickup weaker, and because the side brush retracts on carpet it left almost everything along edges and in corners. TechRadar and Trusted Reviews were much happier, with TechRadar clearing all but a single oat flake on the Max setting. Hair is a clearer problem. Trusted Reviews saw human hair tangle round the brush, and Tech Advisor's roller matted so badly with long hair and cat fur that it had to be cut free.
Good navigator, not clutter-proof
RTINGS found it slid under low furniture and avoided most obstacles, including pet waste, but it could miss USB cables and rug tassels and get stuck. Trusted Reviews saw it avoid cables, fake pet mess and shoes, while Tech Advisor found coiled cables still caught it out. TechRadar heard a constant rattle from its sample, though mapping was quick and accurate. Pick up cables before a run, whatever the arm promises.
Our take
Should you buy the Saros Z70?
Best for: Robotics enthusiasts interested in trying the pickup arm. Skip it if: You want the best cleaning value rather than an experimental pickup arm.
Consider the Z70 only if the arm itself is a feature you want to experiment with. Its usefulness as an accessibility aid has not been established. If cleaning is the priority, compare the Saros 10R and Saros 10 on their floor results, dock features and current availability in your market.
The Saros Z70 was the first robot vacuum on sale with a mechanical arm. It's built on the Saros 10R, with the same slim turret-free body, two spinning mops and a chassis that lifts over raised doorway thresholds. The difference is an arm that folds out of a hatch to pick up socks, sandals, tissues and small towels and put them where you've told it to.
All four testers found the vacuuming and mopping excellent. RTINGS called hard-floor pickup remarkable, edges and corners included, and Trusted Reviews lifted coffee, red wine and dried mud with the mops. The arm is another matter. TechRadar didn't get one fully successful automatic tidy in two weeks, Trusted Reviews saw it ignore a sock and a tissue, and Tech Advisor watched it lift a sock and set it down in the same spot. TechRadar did find driving the arm from the app reliable. Hair is a clearer problem. Trusted Reviews saw hair wrap round the brush, and Tech Advisor's roller matted so badly with long hair and cat fur that it had to be cut free. Tech Advisor couldn't recommend it until the arm is fixed.
Where to buy
Where to buy the Saros Z70 in United Kingdom
No United Kingdom price checked in the last 21 days. We re-check daily.
We’re still looking for more United Kingdom retailers for this model.
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Before you buy
The questions people ask about this one
What can the arm actually pick up?
Small, light things. Roborock lists socks, sandals, crumpled tissues and towels under 300g, per the specifications, with more promised through updates. In practice TechRadar, Trusted Reviews and Tech Advisor all found automatic tidying unreliable. The arm is switched off by default, and you mark the drop-off spots yourself.
Will it avoid cables and pet mess?
Pet mess, mostly: RTINGS found it didn't touch pet-waste deposits, and Trusted Reviews saw it avoid fake mess. Cables are less certain. RTINGS saw it get stuck on USB cords and rug tassels, and Tech Advisor found coiled cables tripped it up. Clear the floor first.
Does it fit under low furniture?
Very likely. It's 7.98cm tall with nothing on top, per the specifications, and RTINGS found it cleared an 8.5cm gap. That's lower than most robots with a laser turret, so measure your sofa and bed before you settle for a taller model.
Can it cross rugs and raised thresholds between rooms?
Well. RTINGS measured it climbing a 3.8cm threshold, and Tech Advisor saw it cross a raised threshold that had stumped other robots. Trusted Reviews found the lifting body got it over a tall threshold and into deep-pile carpet without getting stuck. The dock can also take the mops off for carpet runs.
How big is the dock, and is it loud?
Tech Advisor measured the dock at about 37.5cm wide and 48cm tall, with a ramp sticking out in front. Those figures don't give the full depth, so check the installation diagram before fitting it into a recess. TechRadar noticed noise from some dock jobs, and you can turn down the spoken updates in the app.
How often do I have to empty or refill anything?
Rarely for dust: Trusted Reviews expects the 2-litre bag to last around two months, even though the robot's own bin is smaller than on other Saros models. The dock refills the robot and washes the mops at 80°C, per the specifications. You still top up the clean tank and empty the dirty one.
Alternatives
Other robot vacuums to compare.
Saros 10R
Why consider it: RTINGS found it cleans hard floors thoroughly, right into edges and corners, and it slips under low furniture.
The compromise: Pet hair in carpet split the testers, and USB leads and rug tassels still caught it out.
Saros 10
Why consider it: TechRadar found its pop-down turret and lifting chassis reliably got it under furniture and over floor transitions.
The compromise: Vacuum Wars found it weaker on dried stains than the 10R, and TechRadar called its avoidance inconsistent.
Saros 20
Why consider it: RTINGS and TechRadar found it very strong on hard floors, with a low body and a helpful dock.
The compromise: Testers disagreed on carpet and obstacle avoidance, and RTINGS found pet-waste avoidance unreliable.
Saros Z70 head to head
Head to head
Roborock Saros 10R vs Saros Z70
Our verdict: Buy the Saros 10R unless you specifically want the arm. Trusted Reviews says the Z70 is built on the 10R, and every tester found the arm too unreliable to be worth paying more for largely the same cleaning.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
Do you own the Saros Z70?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner accounts are shown separately from independent reviews.
Sources
Where this page’s findings come from
Editorial reviews
- RTINGS: Roborock Saros Z70 review ↗7.8 / 10Lab test
- TechRadar: Roborock Saros Z70 review ↗3.5 / 5Hands-on, 2 weeks at home
- Trusted Reviews: Roborock Saros Z70 review ↗3 / 5Hands-on
- Tech Advisor: Roborock Saros Z70 review ↗3 / 5Hands-on
Sources
- Roborock: Saros Z70 product page ↗Manufacturer
Videos
- Vacuum Wars: Roborock Saros Z70 Review - Are Robot Vacuum Arms a Fad or the Future? ↗
- 6 Months Later: Roborock Saros Z70 and 10R Review - 6 Months Later ↗
- Search YouTube for Roborock Saros Z70 ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.