Roborock Saros Z70 vs Roborock Qrevo CurvX
Quick take: The Roborock Saros Z70 costs $200 less; the Roborock Qrevo CurvX runs longer per charge (220 vs 180 min).
Which one to buy
Take away the arm and the Qrevo CurvX is the better robot, though it costs $200 more. The Saros Z70's OmniGrip arm grabbed and relocated an object only about half the time in testing and recognizes three object categories. Owners describe it freezing mid-task while sorting items and snagging a t-shirt, and some switched it off for good. What's left is a capable Roborock with category-leading avoidance, 22 of 24 obstacles, but carpet results below average: 67% deep-clean against a 75% average, and 83% pet-hair pickup on carpet against a 92% average.
The CurvX tested far better on carpet, removing 92% of debris from deep carpet, tied for third out of 200+ robots, with 0% hair tangling against a 28% average. Its avoidance scored 20 of 24, close to the Z70, and testers saw it steer around rug tassels and shut off the main brush near pets. Its retracting LiDAR lets it reach under couches that hadn't been cleaned in years, and its owners say its 12N pads lift dried stains. The weak points: measured airflow came in below average despite the 22000 Pa rating, the bin is small enough that pet homes run the dock several times a week, the hot-water flush is louder than the vacuum, and the retracting turret is a first-generation part.
The Z70 has a few advantages beyond the arm: a 22mm mop lift, a quieter 50 dB rating, and owners who say its core cleaning held up over six months. Its 180 ml bin is the smallest Roborock has shipped.
For pets, carpet or low furniture, the CurvX is the stronger machine and worth the extra $200. The Z70 makes sense only for a buyer who specifically wants to try the arm, or save $200, and keeps mostly hard floors.
Roborock Saros Z70
For an early adopter curious about a robot that moves clutter, with mostly hard floors where its weaker carpet results matter less.
Roborock Qrevo CurvX
For pet homes with carpet or low couches, it cleans carpet far better and avoids tangles completely, which is worth the extra $200.
| Spec | Roborock Saros Z70 | Roborock Qrevo CurvX |
|---|---|---|
| Price | ~$1,000 | ~$1,200 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 22000 Pa | 22000 Pa |
| Battery | 180 min | 220 min |
| Navigation | LiDAR + Camera | LiDAR + Camera |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | 50 dB | — |
| Dustbin | 180 ml | — |
| Water tank | 590 ml | — |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | Yes | Yes |
| Multi-floor mapping | Yes | Yes |
| App control | Yes | Yes |
| Dimensions | 13.78 x 13.9 x 3.14 in | — |
| Weight | — | — |
| Warranty | 1 year | 1 year |
Pros & cons
Roborock Saros Z70
- ✓OmniGrip mechanical arm genuinely picks up and relocates small objects like shoes and fabric before cleaning — a real industry first
- ✓Best-in-class obstacle avoidance in independent testing (22/24 score versus a 16.6 category average)
- ✓80°C hot water mop washing plus 22mm auto mop lift keeps mopping and carpet cleanly separated
- ✓Ultra-slim 3.14in body still slides under most furniture despite the added arm hardware
- ✓Roborock's most mature app, with SmartPlan 2.0 adaptive routines and a built-in voice assistant
- ✗The mechanical arm only successfully grabs and moves an object about half the time in testing, and recognizes just three object categories
- ✗Smallest dustbin Roborock has shipped at 180ml, meaning more frequent dock empties even with auto-emptying
- ✗Carpet deep-cleaning (67% vs. 75% average) and pet-hair pickup on carpet (83% vs. 92% average) both tested below category norms
- ✗Near $2,000 at full retail — reviewers note the cheaper Qrevo Edge or Saros 10R clean nearly as well for hundreds less
- ✗First-generation arm mechanism, so there's no multi-year reliability record yet
Roborock Qrevo CurvX
- ✓0% hair tangling in independent testing versus a 28% category average — genuinely tangle-free in practice
- ✓92% debris removal on deep carpet, tying for third place out of over 200 robot vacuums tested
- ✓20/24 obstacle-avoidance score, a real step up from earlier Roborock generations
- ✓Retractable LiDAR drops to a 100° rear view for cleaning under low furniture
- ✓One of the best-reviewed apps in the category, plus strong marks for Roborock customer service
- ✗Measured airflow runs below the category average despite the 22,000Pa headline suction figure
- ✗Dustbin is small enough that pet-heavy homes will be emptying the dock multiple times a week
- ✗Uses more mop water than average on the low setting (testers saw no streaking, but it's a heavier water user)
- ✗Manufacturer doesn't publish battery-free dimensions, weight, dustbin capacity, or noise level for this model
Roborock Saros Z70 vs Roborock Qrevo CurvX: common questions
Is the Roborock Saros Z70, $200 cheaper than the Qrevo CurvX, the better buy?▾
For most people, no. The arm succeeded about half the time in testing and owners report it freezing or snagging clothing. The CurvX costs $200 more but tested far better on carpet, so the Z70 mainly makes sense if the arm or the lower price is the draw.
Which handles carpet and pet hair better, the Saros Z70 or the Qrevo CurvX?▾
The CurvX, clearly. It removed 92% of debris from deep carpet with 0% hair tangling. The Z70 tested below average at 67% carpet deep-clean and 83% pet-hair pickup on carpet, against averages of 75% and 92%.
Does the Qrevo CurvX avoid obstacles as well as the Saros Z70?▾
Nearly. The Z70 led its category at 22 of 24 and the CurvX scored 20 of 24, a step up from earlier Roborocks. Testers also saw the CurvX avoid rug tassels and recognize pets, so the gap rarely matters in practice.