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Roborock S8 MaxV Ultra vs Roborock Saros 20
Too close to call: the right one depends on your home.
The verdict in 10 seconds
The Roborock S8 MaxV Ultra suits you if
- You have shedding pets and a mix of hard floors and carpet
- You want a robot that empties, washes and dries itself with minimal effort
- Your home has lots of edges and corners you'd like cleaned well
May not suit you if
- You want top value or are working with a tighter budget
- You're uneasy about a camera and microphone roaming your home
- You have thick shag or tasseled rugs, or need it to lift tough dried-on stains
The Roborock Saros 20 suits you if
- Your home mixes hardwood, rugs and carpet, with tall door sills or awkward transitions
- You have low furniture or a cluttered, complicated floor plan
- You want a top-of-the-line robot with a dock that does most of the upkeep
May not suit you if
- You already own a recent Roborock flagship and are happy with it
- You mostly need help with sticky spills or pet accidents
- You want a robot you never have to rescue, or the price would stretch your budget
The short version
These are closely matched, so pick by what your home needs. The Roborock S8 MaxV Ultra suits you if you have shedding pets and a mix of hard floors and carpet. The Roborock Saros 20 suits you if your home mixes hardwood, rugs and carpet, with tall door sills or awkward transitions.
We researched 13 expert reviews, analyzed 7,873 owner ratings and comments across 14 sources for the two, and cross-checked them into one verdict, so you don't have to.
See the evidence
The scoreboardProduct Review score 74 vs 76 · reliability 64 vs 87
| Roborock S8 MaxV Ultra | Roborock Saros 20 | |
|---|---|---|
| Product Review score | 74 | 76 |
| Experts | 81 | 84 |
| Owners | 73 | 62 |
| Reliability | 64 | 87 |
| Report problems | 15% | 5% |
| Evidence | 7 reviews · 456 comments | 6 reviews · 501 comments |
| Typical price | $1,400–$1,900 | $1,299–$1,600 |
● marks the better number on each row.
Experts vs ownersExperts 81 vs 84 · Owners 73 vs 62
Roborock S8 MaxV Ultra
Roborock Saros 20
How we reached each verdictThe numbers behind each model's score
Roborock S8 MaxV Ultra
The evidence here is deep: 7 hands-on expert reviews and 456 owner comments, 411 of them first-hand. Experts score it 81 and owners 73, with 4 of 7 reviewers calling it their best or top-tier robot cleaner, and 38% of owners praising its suction versus 5% complaining. Mopping is more divisive among experts (5 of 7 note streaks, stubborn stains or only okay results), though owners lean positive at 27% praise versus 8% complaints. The main caution is durability and value: reliability scores 64, 15% of owner comments mention failures, 9% say it broke or died, and 7% cite poor customer support.
Roborock Saros 20
All 6 hands-on expert reviews rate the Saros 20 as a top-tier performer, with its suction, low profile and threshold climbing praised across the board. ZDNet found it the best of the robots it tested on medium-pile carpet. Owners are warmer about cleaning (31% praise suction, 18% praise mopping) than about getting around: 14% praise navigation, while 10% criticize it and 5% say it gets stuck. That gap helps explain an owner score of 62 against an expert score of 84. Every reviewer flags the price, and two call it only an incremental step over the Saros 10 and 10R. Reliability evidence is reassuring, with failures mentioned by just 5% of owners, but long-term durability data is still limited because the model is new.
Where each one falls shortThe most common complaints
Roborock S8 MaxV Ultra
- Very high price for what it offers
- Mopping can streak and won't remove stubborn stains
- Obstacle avoidance misses cables, socks and small debris; some units fail
Roborock Saros 20
- Very expensive, and only a modest upgrade over the Saros 10 and 10R
- Sticky, dried-on spills often need a second pass or manual cleanup
- Can snag cords, swallow small items or get stuck on furniture and ledges
Quick answers
Which is better, the Roborock S8 MaxV Ultra or the Roborock Saros 20?
Neither, clearly. They're closely matched, so choose by your floors, pets and budget.
Based on: Product Review score 74 vs 76.Which is more reliable?
The Roborock Saros 20. It's the least likely of the two to give you trouble.
Based on: Reliability 64 vs 87; problems mentioned by 15% vs 5% of owners.Which is easier to live with day to day?
The Roborock S8 MaxV Ultra. It's the one people are happiest with once it's home.
Based on: Owners score 73 vs 62, from ratings and comments.Which is cheaper?
The Roborock Saros 20 usually costs less.
Based on: Typical prices: Roborock S8 MaxV Ultra $1,400–$1,900; Roborock Saros 20 $1,299–$1,600.As an Amazon Associate we earn from qualifying purchases. It never changes a score.