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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
Skip it 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 hard floors, thick rugs and high door thresholds
- You have pets and lots of hair worked into carpet
- You have low furniture and want a robot that slides underneath
Skip it if
- You want strong value and a simpler home doesn't need flagship power
- You often deal with sticky spills and want the mop to handle them alone
- You already own a Saros 10 or 10R and are happy with it
So, which one?
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 hard floors, thick rugs and high door thresholds.
We researched 13 expert reviews, analyzed 7,847 owner ratings and comments across 14 sources for the two, and cross-checked them into one verdict, so you don't have to.
Show me the receipts
The scoreboardProduct Review score 74 vs 76 · reliability 64 vs 85
| Roborock S8 MaxV Ultra | Roborock Saros 20 | |
|---|---|---|
| Product Review score | 74 | 76 |
| Experts | 81 | 84 |
| Owners | 73 | 62 |
| Reliability | 64 | 85 |
| Report problems | 15% | 6% |
| Evidence | 7 reviews · 456 comments | 6 reviews · 496 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 agree the Saros 20 is a top-tier cleaner, with standout suction, threshold climbing and a slim profile, and the expert score of 84 reflects that. Owners are cooler at 62: the most common praise is suction (32% of 496 comments) and mopping (18%), but 9% complain about navigation, 6% about value, and 5% about it getting stuck. Reliability looks solid, with failure mentions in only 6% of comments and no recalls, though long-term durability data is thin for a newer model. Amazon shows 4.2 stars from about 4,500 votes, and Roborock's own store shows 4.51 from 376.
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
- High price for an incremental upgrade
- Mopping struggles with sticky spills and can streak
- Can snag on thin cords, small objects or furniture
Questions people actually ask
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 85; problems mentioned by 15% vs 6% 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.