Dyson 360 Vis Nav vs Roborock S8: I Bought the Dyson
The Roborock is the smarter robot. The Dyson sucks twice as hard. For a house with carpet and shedding cats, suction is the only thing that matters.
Winner: the Dyson 360 Vis Nav for any house with carpet and a shedding cat. I bought the Dyson at $350 on sale, ran it twice a day for a month with my 3 cats, and the dust bin came out packed with hair and litter every time. The Roborock S8 is the smarter robot, the LiDAR map is cleaner, the app is better, and the mop is genuinely useful on hardwood. None of that pulls cat hair out of carpet. The Dyson does.
This is the comparison. Where each one wins, where each one loses, and the kind of house that picks the Roborock over the Dyson. The full Dyson 360 Vis Nav review covers the month-of-daily-use detail. The main cat hair guide covers the rest of the gear that earned a spot in my house.
The spec sheet
Side-by-side: what you're paying for
The Dyson 360 Vis Nav vs Roborock S8 thing comes down to two design choices. The Dyson is a vacuum first, a robot second. The Roborock is a robot first, a vacuum second. Once you see it that way the table reads itself.
| Feature | Dyson 360 Vis Nav | Roborock S8 |
|---|---|---|
| Typical street price | $350 | $750 |
| Sale price | $279 | $549 (S8 base) |
| Pro Ultra trim | n/a | $1,500 |
| Suction (relative) | ~2x the Roborock | Baseline |
| Motor | Hyperdymium, 110,000 rpm | Standard digital, ~6,000 Pa |
| Roller | Single full-width brush bar | Dual rubber rollers |
| Navigation | 360 camera + SLAM | LiDAR + structured-light obstacle |
| Mop | None | Sonic vibrating mop |
| HEPA filtration | Sealed, in-unit | Yes (in dock on Pro Ultra) |
| Dust bin | Big, in-unit | Small, auto-empty on Pro Ultra |
| Dock | Slim charging dock | Charge only (base) or wash-and-empty (Pro Ultra) |
| Best surface | Carpet | Hardwood |
The numbers tell the story. The Dyson sells for less than half the price and pulls roughly twice the suction. The Roborock sells for more and adds a mop, an auto-empty dock on the high trim, and a much smarter map. Different jobs.
Where the Dyson wins
What the Dyson 360 Vis Nav does better
Suction. This is the whole reason to buy it. The Hyperdymium motor spins at 110,000 rpm and if you stand behind the Dyson while it's running you can feel the wind, like a shopvac. The dust bin came out packed with cat hair and litter the first few times I ran it, in a house I thought I was keeping clean. Side-by-side suction tests put the 360 Vis Nav at roughly twice the airflow of the Roborock S8. On carpet that's the difference between picking up the embedded hair and brushing past it.
The roller. The Dyson has one full-width brush bar that runs edge to edge, the same kind of roller you'd find on a corded Dyson upright. The Roborock uses dual rubber rollers that are narrower and don't make contact across the full vacuum width. On carpet the full-width bar is what pulls the matted hair out, you get the actual vacuum lines behind it, which is a thing I haven't seen any other robot do. The Roborock's rubber rollers are great for hardwood and for not tangling, they just don't dig hair out of carpet.
Price. $350 typical, $279 on sale. The Roborock S8 base trim is $750 typical, the Pro Ultra is $1,500. You can buy four Dysons for the price of one Pro Ultra. The Dyson used to sell for $1,200 a year ago, that's where most of the bad reviews come from, but the street price collapsed and at $350 it's a steal. Sub $300 robot vacuums are basically toys, this dyson is a workhorse.
The dust bin. Big, in-unit, easy to dump. With 3 cats I empty it after most cleans and it's never overflowed during a cycle. The Roborock S8 base has a small bin you'll empty almost daily, and the Pro Ultra solves it with a $1,500 auto-empty dock. The Dyson skips the dock and gives you the bin volume in the robot itself.
Where the Roborock wins
What the Roborock S8 does better
The mop. The S8 has a sonic vibrating mop pad that scrubs hardwood while it vacuums. It's not magic, it won't get a dried-on coffee spill, but it handles the daily film around food bowls, paw prints, and the litter dust that settles outside the box. On a hardwood-only house the mop is the feature you'll use every day. The Pro Ultra trim takes it further, hot water washing, self-cleaning, and a wash-and-empty dock that genuinely saves you work. The Dyson has no mop and never will.
Navigation. The Roborock's LiDAR builds a clean map of the house in one cleaning pass. You can name rooms, draw no-go zones, send it to a single room from the app, and it gets there without bumping the furniture. The Dyson uses a 360 camera and SLAM, which is fine in my small single level house but gets clumsier in open-plan or multi-floor layouts. If you have stairs to multiple cleaning zones the Roborock's saved-map handling is a real advantage.
The app. Roborock's app is the best in the category. Schedules, zones, suction levels, mop water levels, mapping, all of it works without a fight. The Dyson app is fine, it does the basics, but it feels like Dyson would rather you not use it. If you actually want to configure the robot from your phone, the Roborock is the one built for that.
Multi-floor handling. The Roborock saves up to 4 maps so you can carry it upstairs and it knows where it is. The Dyson saves one map and gets confused if you move it. For a two-story house the Roborock is the obvious call.
More cat hair gear reviews coming
I'm working through the rest of the gear in my 3 cat house. The full Dyson 360 Vis Nav review is up, the Roomba J7 comparison is next, then the air purifier and the lint roller showdown. Drop your email if you want the next one when it goes live.
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Pick the right one for your house
Which one is right for your house
Mostly carpet, shedding cats: Dyson 360 Vis Nav. This is my house. Carpet in most rooms, 3 cats, daily fur and litter scatter. The Dyson's suction is what makes the difference, the full-width roller pulls the embedded hair out and the bin shows it every time. Twice a day, every day, for a month. The Roborock would leave that hair in the carpet because it can't lift it. Don't overthink this one.
Mostly hardwood, one cat or no shedding: Roborock S8. If your house is mostly hardwood and the daily problem is litter dust and paw prints, not embedded fur, the Roborock is the better tool. The mop is the feature you'll use every day, the suction gap doesn't matter as much when there's no carpet pile to dig into, and the LiDAR map makes the daily run frictionless.
Mixed surfaces, want one robot to do everything: it's a coin flip. The Dyson does the carpet better and skips the mop entirely. The Roborock does the hardwood better and does carpet okay. If carpet is more than half the house, go Dyson. If hardwood is more than half, go Roborock. There is no robot that does both perfectly at this price.
Budget under $500: Dyson, no contest. $279 to $350 vs $549 to $750. The Dyson is the workhorse at the price, the Roborock S8 base trim is the floor of where you'd spend money on a Roborock.
Budget over $1,000 and you want hands-off mopping: Roborock S8 Pro Ultra. The auto-wash, hot-water, self-empty dock is the most polished thing on the market and it's a different category of product than the Dyson. Just be honest, you're paying $1,500 for a hardwood-cleaning appliance, not for cat-hair-on-carpet performance.
The pros and cons of each
Pros and cons
Dyson 360 Vis Nav: pros
- Roughly twice the suction of the Roborock S8
- Single full-width brush bar pulls hair out of carpet
- $350 typical, $279 on sale
- Big in-unit dust bin, no auto-empty dock needed
- Sealed HEPA filtration in the unit
- Heavy and stable, doesn't get stuck on rugs or thresholds
Dyson 360 Vis Nav: cons
- Loud, sounds like a real corded vacuum running
- No mop, never will have one
- Camera-based navigation is clumsier than LiDAR
- Single saved map, multi-floor handling is rough
- App is functional but not great
Roborock S8: pros
- Sonic vibrating mop, real hardwood feature
- LiDAR mapping, named rooms, no-go zones
- Best app in the category
- Saves up to 4 maps for multi-floor houses
- Pro Ultra trim adds wash-and-empty dock
- Quieter than the Dyson
Roborock S8: cons
- Roughly half the suction of the Dyson
- Dual rubber rollers don't pull hair out of carpet
- $750 base, $1,500 for Pro Ultra
- Small in-unit bin, auto-empty only on Pro Ultra
- Mop sits unused on a carpeted house
Frequently asked
FAQ
Is the Roborock S8 better than the Dyson 360 Vis Nav for cat hair?
No. The Dyson 360 Vis Nav has roughly twice the suction of the Roborock S8 and a single full-width brush bar that pulls hair out of carpet. The Roborock's dual rubber rollers don't get embedded cat hair off carpet the way the Dyson does. For shedding cats on carpet, the Dyson wins. The Roborock is the better robot for hardwood floors where the mop earns its premium.
Does the Roborock S8 handle long cat hair?
On hardwood, yes. The dual rubber rollers cut down on tangle compared to bristle brushes and you'll only have to pick hair out of the rollers every couple of weeks. On carpet, long cat hair stays embedded because the Roborock's suction isn't strong enough to lift it. The Dyson 360 Vis Nav with its full-width brush bar is the answer for long cat hair on carpet.
Dyson 360 Vis Nav vs Roborock S8, which has better suction?
The Dyson, by a wide margin. The Hyperdymium motor spins at 110,000 rpm and side-by-side suction tests put it at roughly 2x the airflow of the Roborock S8. If you stand behind the Dyson while it's running you can feel the wind, which is not something you'd say about a Roborock.
Is the Roborock S8 mop worth the extra money?
On hardwood, yes. The sonic vibrating mop is genuinely useful for litter dust, paw smudges, and the daily film that builds up around food bowls. Pro Ultra trims add hot water washing and self-cleaning, which is the version that actually saves you work. On a carpeted house the mop sits in the dock and doesn't earn its keep.
Can the Dyson 360 Vis Nav navigate as well as the Roborock S8?
No. The Roborock S8 uses LiDAR and builds a clean map of the house in one cleaning pass. You can name rooms, set no-go zones, and run a single room from the app. The Dyson uses a 360 camera and SLAM, which is good enough for a small single level house but clumsier on multi-floor or open-plan layouts. For navigation smarts the Roborock is the better robot.
Roborock S8 vs Dyson 360 Vis Nav for hardwood floors, which wins?
The Roborock S8. On a hardwood-only house the suction gap matters less, the dual rubber rollers don't scatter litter the way bristle brushes can, and the mop is the feature you'll use every day. The Dyson works fine on hardwood, it just doesn't bring anything the Roborock doesn't already do better. For a hardwood-only house the Roborock is the call.
Which is louder, Roborock S8 or Dyson 360 Vis Nav?
The Dyson, by a lot. When the 360 Vis Nav is running it sounds like someone is using a real corded vacuum in the other room. The Roborock S8 hums along at a hotel-housekeeping volume you can talk over. If quiet matters and the house is hardwood, the Roborock wins. If you want a robot that actually vacuums, the Dyson noise is the price of the suction.
Does the Roborock S8 require a subscription?
No. The Roborock app, the maps, the no-go zones, and all the cleaning features are free. You'll spend money on consumables, mop pads, side brushes, and the auto-empty bag if your trim has a dock, but there's no monthly fee. The Dyson 360 Vis Nav is also subscription-free, you just buy filters and the brush bar when they wear.
Roborock S8 Pro Ultra vs Dyson 360 Vis Nav, what's worth the upgrade?
The S8 Pro Ultra runs $1,500 and adds an auto-empty, self-washing, hot-water mop dock. It's a different category of product than the $350 Dyson. If you want a hands-off mop-and-vac for hardwood, the Pro Ultra is the most polished thing on the market. For raw suction on cat hair the Dyson still wins, and you can buy four Dysons for the price of one Pro Ultra. Pick the one that matches your house, not the spec sheet.
If you want the head-to-head with the other big robot vac in this market, the Dyson 360 Vis Nav vs Roomba J7 comparison covers that fight. For the room-by-room cat hair playbook, the remove cat hair guide goes surface by surface.
How I tested
The bar this comparison had to clear
Bought the Dyson at $350 on sale
No review unit, no Dyson freebie. Paid $350 on an Amazon sale, ran it twice a day for a month with my 3 cats and the daily litter scatter from a Litter Robot 4.
Researched the Roborock trims first
Read the S8, S8+, and S8 Pro Ultra spec sheets, watched the side-by-side suction tests, talked to S8 owners with cats. Picked the Dyson on purpose for the carpet in my house.
Made the call for a real house
Carpet in most rooms, 3 cats including 2 outdoor rescues, daily fur and litter. The Dyson is the right robot for that house. The Roborock would be the right robot for a different house.
This comparison is part of the main cat hair guide. The full Dyson 360 Vis Nav review covers the month-of-daily-use detail in my 3 cat house.