Both of these Roborocks clean well and maintain themselves at the dock, but the S8 MaxV Ultra adds an RGB camera with AI obstacle recognition, 10,000 Pa of suction, hot water mop washing, and an extendable side brush and mop for edges. The S8 Pro Ultra covers the same core ground (LiDAR mapping, auto-emptying, vibrating mop pad, dual rubber brushes) for noticeably less money. Go with the MaxV if cluttered floors and pet hair are daily realities; the Pro Ultra makes more sense in tidier, hard-floor-heavy homes.
Same family, same dock philosophy, very different sensor packages. The S8 Pro Ultra and S8 MaxV Ultra both map with LiDAR, empty their own dustbins, wash their own mop pads, and use the same dual rubber brush setup underneath. Where they split is in what the robot can see and how hard it can pull. The MaxV adds a camera, AI obstacle recognition, and a big jump in suction, plus a dock that washes with hot water and adds detergent. The Pro Ultra skips all of that and costs a lot less. Here's what that trade actually looks like day to day.
Roborock S8 MaxV Ultra
out of 10Roborock S8 Pro Ultra
The S8 MaxV Ultra takes the overall rating 8.0 to 7.4, and almost all of that comes from navigation, where it rates 7.8 against the Pro Ultra's 6.3. That's the camera and AI recognition layered on top of the structured light both robots use. Cleaning is closer, 7.3 versus 7.0, and features are essentially even at 9.6 versus 9.7. Value lands at 5.5 for both, which tells you the extra money buys real hardware rather than a bargain.
Start with what the robot can see. The MaxV Ultra pairs an RGB camera and AI with 3D structured light, and adds a light for dark rooms, so it identifies and steers around cables, shoes, and pet messes rather than just detecting a shape. The Pro Ultra relies on 3D structured light alone. Suction is the other big gap: 10,000 Pa versus 6,000 Pa, backed on the MaxV by smart dirt detection that ramps power when it finds a heavily soiled patch. Mopping goes a different direction than the spec sheet suggests. Both use a vibrating pad, but the MaxV vibrates at 4,000 per minute versus 3,000 and lifts 20 mm off the floor for carpet instead of 5 mm. Its dock also washes pads with 140 °F water and dispenses detergent.
The MaxV Ultra's 10,000 Pa nearly doubles the Pro Ultra's 6,000 Pa, and its extendable side brush swings out to pull debris from corners and along baseboards. The Pro Ultra counters with a larger onboard dustbin, so it goes longer between dock emptying cycles, and both use the same dual rubber brush setup that resists hair tangles.
Both robots mop with a vibrating pad, which scrubs better than a passive dragged pad but sits below dual spinning mops in overall scrubbing strength. The MaxV vibrates at 4,000 times per minute against the Pro Ultra's 3,000, adds a small rotating edge mop for baseboards, and lifts 20 mm for carpet versus 5 mm, though the Pro Ultra carries a larger onboard water tank for longer mopping stretches.
Pet homes lean toward the MaxV Ultra: 10,000 Pa lifts embedded hair from rugs more effectively than 6,000 Pa, and smart dirt detection boosts power automatically over the spot where your dog naps. Both share tangle-resistant dual rubber brushes, so neither turns into a hair-wrapping mess.
This is the clearest split between them. The MaxV Ultra combines an RGB camera, AI recognition, and 3D structured light plus a built-in light for dim rooms, so it identifies specific objects; the Pro Ultra uses 3D structured light on its own, which detects obstacles but understands less about what they are. Both map with LiDAR and handle multi-level homes.
Both docks empty the dustbin, wash the mop pad, and refill water automatically. The MaxV Ultra goes further by washing pads at 140 °F, air drying at the same temperature, and dispensing detergent during the wash, which leaves the pad cleaner than a water-only rinse.
Nothing separates these two on runtime or coverage. Both handle multi-level maps and recharge-and-resume, so a large home gets finished either way.
Both work with Amazon Alexa, Google Assistant, and Apple, and both offer no-go zones, multi-level maps, and smart obstacle avoidance. The MaxV Ultra adds built-in voice control (commands without a separate smart speaker) and smart dirt detection for automatic power adjustment.
| Feature | Roborock S8 MaxV Ultra | Roborock S8 Pro Ultra |
|---|---|---|
| Suction Power | 10,000 Pa | 6,000 Pa |
| Mop Type | Vibrating mop pad + rotating edge mop | Vibrating mop pad |
| Auto Detergent Dispensing | Yes | No |
| Camera | Yes | No |
| Smart Dirt Detection | Yes | No |
| Extendable Mop | Yes | No |
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The S8 Pro Ultra still does the hard part well: it maps your home, empties itself, and washes its own mop pad. Pay up for the MaxV Ultra when clutter, carpet, and pets make navigation and suction the deciding factors. Otherwise the savings are hard to argue with.
