Roborock S8 Pro Ultra - Advanced Robot Vacuum and Mop for Smart Homes
Published: June 29, 2025 | Updated: February 10, 2026
- Product Details
- Effortless Daily Cleaning
- Deep Dive into Cleaning Tech
- RockDock Ultra: Cleaning Made Simple
- Smart Mapping and Voice Control
- Setup in Less Than Ten Minutes
- Maintenance Tips
- Real-World Results
- Who It Works Best For
- Key Specs in Plain Language
- How It Compares to Other Premium Robot Vacuums
- Troubleshooting Guide
- Smart Home Setup
- Warranty and Long-Term Value
- Cost Over Five Years
- Full Setup Guide
- Advanced Features Explained
- Performance vs. Competitors
- Who Should Buy This
- Final Thoughts
Product Details
🏭 Manufacturer: Roborock
🔌 Plug Format: US
📄 Specification Met: CE, FCC, RoHS
🔖 Part Number: S8PRO-ULTRA
🏋️♂️ Weight: 10.2 lbs
📏 Dimensions: 13.8 x 13.8 x 3.8 in
🏳️ Country of Origin: China
🆔 Model Number: S8PRO-ULTRA
📐 Size: One Size
🎨 Style: Pro Ultra
🧲 Mounting Type: Freestanding
🔧 Usage: Vacuuming and Mopping Floors
🧩 Included Components: Robot Vacuum, Mop, Dock, Water Tank, Dust Bag, Power Cord
🔋 Batteries Included: Yes
The Roborock S8 Pro Ultra robot vacuum cleans your floors without much help from you. It vacuums and mops at the same time. It has 6,000 Pa of suction. That's strong enough to pull grit from carpet seams. The sonic mop vibrates 3,000 times a minute. It scrubs hard floors as it moves. The robot maps your home on its own. It uses LiDAR to do this. The map builds up fast. It's very accurate. Smart sensors help it avoid toys and cables. Even in low light, it finds its way. When it's done, it goes back to the dock. The dock empties the dustbin, washes the mop pad, dries it, and refills the water. You don't have to touch any of it.

Effortless Daily Cleaning
The 6,000 Pa HyperForce motor is very powerful. It lifts sand from thick carpet. It's gentle on hardwood too. Two rubber rollers sweep up pet hair. They don't tangle. The sonic mop scrubs 3,000 times per minute. It removes dried marks with ease. The battery lasts about three hours in Quiet mode. That's enough for most homes. When the robot reaches carpet, it lifts the mop pad on its own. The VibraRise 2.0 system handles that. Rugs stay dry. You don't need to remove the pad before cleaning carpeted areas.
Quick-View Advantages
- RockDock Ultra handles emptying, washing, drying, and refilling on its own.
- Reactive 3D sensors spot objects as small as five centimeters.
- DuoRoller brushes spin in opposite directions to cut hair tangles.
- Works with Alexa, Google Assistant, and Siri Shortcuts for voice control.

Deep Dive into Cleaning Tech
Two thick rubber rollers grip the floor tightly. They shake loose crumbs that bristle brushes miss. The dual brush and mop combo covers a wide strip on tile. It scrubs stuck-on food without dragging dirty water. In Balanced mode, the noise sits around 69 dB. That's about as loud as a shower. You can still have a conversation while it runs.

RockDock Ultra: Cleaning Made Simple
The dock does most of the work for you. It heats air to about 60 degrees Celsius. That dries the mop pad fast. It stops mildew from forming. The dock holds a 2.5-liter dust bag. It stores weeks of debris. Two water tanks keep clean and dirty water apart. Dirty water never goes back on your floor. Even the dock base gets rinsed. You don't have to wipe any puddles. Most users change the dust bag every six weeks.
Smart Mapping and Voice Control
LiDAR builds a 3D map after the first run. You can label each room in the app. Set no-mop zones under rugs. Schedule the kitchen to clean at dawn. The robot also works with voice assistants. Just say "Alexa, vacuum under the table" and it starts. You can trigger spot cleans from anywhere. The Roborock app gives you full control from your phone. Roborock has also hinted at Matter support in a future update. That will open even more ways to connect it to your smart home.

Setup in Less Than Ten Minutes
Getting started is easy:
- Unbox and plug - Set up the robot and dock. Plug the base into the wall.
- Download the app - Get the Roborock app on your phone.
- Connect via Wi-Fi - Scan a QR code to pair. It's fast and simple.
- Map your home - The robot learns your layout room by room.
- Customize zones - Name areas, draw limits, set schedules.
- Connect water - Slide the tanks in. Fill from your tap. No tools needed.
Renters can use this too. No drilling or fixed setup required.
Maintenance Tips
The dock handles most of the cleaning work. But a few monthly checks help a lot.
Monthly tasks:
- Rinse the dock's drain tray with warm water
- Wipe the charging contacts with a dry cloth
Side brush care:
- Check for hair tangles each week
- Snip or pull them away by hand
Filter upkeep:
- Tap the HEPA filter clean every few weeks
- Replace it every six months
Mop pad:
- Lasts about three months with daily use
- Replacement packs come in sets of three
Real-World Results
Pet owners: The rubber rollers lift fur without snarls. You save a lot of scissor time each week.
Busy parents: The mop pad dries before bedtime. There's no damp cloth smell left behind.
Run time: Tests show a full 180-minute battery life. That holds even on thick rugs and hardwood.
Noise level: It rarely gets louder than normal conversation. Movie nights stay uninterrupted.
Who It Works Best For
Multi-level homes:
- Stores up to four separate floor maps
- Just carry it upstairs and pick the right map in the app
Pet households:
- Rubber rollers resist hair tangles
- Strong suction lifts embedded fur from carpets
Busy professionals:
- Schedule it to clean while you're at work
- Come home to fresh floors
Families with young kids:
- Reactive 3D sensors avoid scattered toys
- It rarely gets stuck or needs rescuing
Allergy sufferers:
- Washable HEPA filter traps fine dust and pollen
- Air quality improves noticeably
Apartment living:
- Quiet at 69 dB in Balanced mode
- Evening runs won't disturb neighbors
Key Specs in Plain Language
The robot has a 200 ml water tank and a 350 ml dustbin. Both are topped up or emptied on their own through the dock. The combined robot and dock weight is about 31 lbs. Once placed, you rarely need to move it. Recharging takes about four hours. The 5,200 mAh battery can be replaced down the road if needed.
How It Compares to Other Premium Robot Vacuums
vs. iRobot Roomba Combo j9+: The Roomba avoids pet waste with its camera system. It works well with Alexa. But Roborock's LiDAR mapping is more precise. The RockDock Ultra is also more thorough. It rinses its own base. The HyperForce motor beats the Roomba on thick carpets. Roborock wins on cleaning power and dock features.
vs. Dreame X40 Ultra: Both have premium docks. Both empty, wash, and dry on their own. The Dreame uses a heated wash cycle. That's a slight edge for mop cleaning. But Roborock's app is easier to use. Support is also faster. Choose Dreame if heated washing is a must. Choose Roborock for a more mature overall system.
vs. Samsung Jet Bot Ultra: Samsung has great object detection. It's good for homes with scattered toys. But Roborock's dual rubber rollers beat Samsung's single brush on pet hair. Mopping is also more consistent. Roborock wins for pet owners. Samsung wins for homes with small children.
Why the price is justified: The RockDock Ultra isn't just a dustbin emptier. It's a full laundry system for mop pads. Warm-air drying stops mildew. Separate water tanks stop dirty water from spreading. These features save time and hassle over three to five years.
Troubleshooting Guide
Robot loses suction:
- Empty the dustbin right away
- Check the HEPA filter for clogs
- Look for hair wrapped around the wheels
- Do a factory reset if problems continue
Mop leaves streaks:
- Check the water level in the dock
- Make sure the mop pad sits flush
- Use distilled water to avoid mineral buildup
- Run a second pass on tough spots
Robot gets stuck:
- Clear toys and cables from the floor
- Make sure the dock sits on hard flooring
- Re-run the initial map if the robot seems lost
- Add no-go zones for problem areas
- Update the firmware for better mapping
App won't connect:
- Check that your phone and robot use the same 2.4GHz network
- Restart the app and your router
- Check that your phone's location access is on
Dock makes noise:
- Whirring and clicking are normal during cleaning and drying
- If noise is very loud, check for debris in the drain
- Make sure the dock sits on a flat, level surface
Smart Home Setup
The S8 Pro Ultra works well with your other smart devices.
Google Home:
- Create a "leaving home" routine that starts the robot
- Say "OK Google, vacuum the living room" for a spot clean
- Set a daily 2 PM schedule while you're at work
- Use it with smart blinds or an air purifier in the same routine
Amazon Alexa:
- Say "Alexa, tell Roborock to start cleaning" from any Echo device
- Build a "bedtime" routine that docks the robot and secures the home
- Control it from your car using the Alexa app
- Say "Alexa, vacuum the bedroom" to clean a specific room
- Link it with smart locks for automatic cleaning after the door locks
Matter support is coming in a future update. That will allow Apple HomeKit control. It will also allow local processing and less cloud reliance.
Warranty and Long-Term Value
The 2-year limited warranty covers manufacturing defects. Wear items like pads, bags, and filters are not included. Roborock support usually replies within 24 hours. Replacement parts are affordable. Most users get five to seven years from the robot with basic upkeep. The resale value stays strong too. A three-year-old S8 Pro Ultra often sells for 60 to 70 percent of its original price.
Cost Over Five Years
Initial cost: $750-850
- Robot and dock: about $799
- Extra mop pads: $30-50
Year 1 costs:
- Mop pads (4 sets at $30): $120
- HEPA filters (2 at $25): $50
- Dust bags (8 at $5): $40
- Distilled water: $20
- Power use: $4.30
- Total first year: about $834
Years 2 to 5 annual costs:
- Mop pads: $120-150
- Filters: $50
- Dust bags: $40-50
- Distilled water: $20
- Power: $4.30
- About $234 per year
5-year total: roughly $1,738 Monthly cost: about $29
Compare that to a professional cleaning service at $150-300 per month. Over five years, that's $9,000 to $18,000. The robot pays for itself quickly.
If you value your time at $20 per hour and the robot saves you four hours per month, that's $960 per year. Over five years, that's $4,800 in time savings. The robot costs $1,738 over five years. Your net gain is over $3,000.
Full Setup Guide
Before you start:
- Pick a spot for the dock on hard flooring
- Leave 1.5 feet of space around the dock
- Make sure your router is within 30 feet
- Clear toys, cables, and socks from the floor
Physical setup:
- Remove all packaging from the robot and dock
- Insert both water tanks and check the seals
- Add the dust bag to the dock
- Attach the mop pad to the robot
- Plug in the dock and place the robot on it to charge
App and Wi-Fi:
- Download the Roborock app
- Create an account
- Tap "Add Device" and select "S8 Pro Ultra"
- Scan the QR code on the robot's base
- Choose your 2.4GHz Wi-Fi and enter the password
- Wait 30-60 seconds for the connection to complete
First mapping run:
- Open all doors you want cleaned
- Close doors to areas you want excluded
- Tap "Start" in the app
- Wait while the robot scans the full floor
- Name each room once the map is done
First real clean:
- Set no-mop zones if needed
- Choose your water level and suction setting
- Schedule daily cleans in the app
- Tap "Clean" to begin your first session
Advanced Features Explained
6,000 Pa suction: This is very powerful. It lifts sand and grit that regular vacuums miss. It's built for thick carpets where hair gets pressed in deep. In practice, it cleans faster and the battery lasts longer.
Sonic mop at 3,000 strokes per minute: The mop pad vibrates 50 times per second. It works like a human hand scrubbing. It removes dried juice, sauce, and sticky spills without chemical cleaners.
Reactive 3D sensors: The robot scans the floor 25 times per second. It detects toys, socks, and cables. It works in low light. It sometimes misses dark objects on dark floors. It does not detect pet waste like some camera systems do.
Rubber rollers vs. bristle brushes: Rubber rollers tangle less. They grip hard floors and carpet edges better. They last longer. They're easier to clean. The trade-off is that they work less well on very thick commercial carpet.
VibraRise 2.0 pad lifting: When the robot finds carpet, the mop lifts on its own. It prevents water damage to rugs. It drops back down on hard floors. You don't need to set anything up.
RockDock Ultra functions:
- Empties the dustbin into the dock's 2.5L bag
- Washes the mop pad with clean water
- Drains dirty water away
- Dries the pad with warm air at 60 degrees
- Rinses the dock base underneath
- Refills the robot's water tank
- Stores weeks of debris in the dust bag
- Sends alerts when maintenance is needed
The warm-air drying step is key. It stops the musty smell that other self-emptying docks get.
Performance vs. Competitors
Suction power:
- Roborock S8 Pro Ultra: 6,000 Pa
- iRobot Roomba Combo j9+: 5,150 Pa
- Dreame X40 Ultra: 7,000 Pa
- Samsung Jet Bot Ultra: 5,800 Pa
At 6,000 Pa, the S8 cleans 10-15 percent faster than 5,000 Pa rivals.
Mop test on dried sauce:
- S8 Pro Ultra: one pass removes 95 percent or more
- Dreame X40 Ultra: similar results with heated wash
- Roborock S8 non-Ultra: about 85 percent removal
- Traditional Swiffer WetJet: needs three to four passes
Battery runtime:
- S8 Pro Ultra: 180 min in Quiet, 120 min in Max
- Roomba j9+: 120 min typical
- Dreame X40 Ultra: 150-180 min
Who Should Buy This
Best for:
- Multi-pet homes that want hands-free cleaning
- Hardwood and tile homes with some carpet
- Busy people in 2,000 to 4,000 sq ft homes
- Anyone who values their time
- Allergy sufferers who need daily mopping
- Smart home fans who want Matter support
Consider other options if:
- Your budget is under $400
- Your whole home is deep-pile carpet
- Your floor is covered in small objects all the time
- You prefer local-only control with no cloud
- You already have a professional cleaner
Final Thoughts
The Roborock S8 Pro Ultra is a top-tier floor cleaning robot. It vacuums and mops at the same time. The dock handles almost all the upkeep. You barely have to think about it. The 6,000 Pa motor is strong on all floor types. The sonic mop removes dried-on messes. The LiDAR map is precise and fast.
At about $800, it's a real investment. But it saves you time every single day. Over five years, the time savings alone are worth more than the cost. The dock sets this model apart from cheaper options. It doesn't just empty the dustbin. It washes, dries, and refills everything. That means your floors stay clean and your robot stays ready.
If your home has pets, hard floors, or busy people coming and going, this robot fits your life well. It runs quietly in the background. It keeps your floors fresh. You'll notice the difference within the first week.
Frequently Asked Questions
Does the Roborock S8 Pro Ultra require a subscription?
No, there's no mandatory subscription. All core features work without any fee. The app controls it locally over Wi-Fi. Roborock offers optional cloud features and AI object detection add-ons, but they're not required for basic operation.
How often do you need to refill the water tank?
The water tank holds 200 ml. Most homes refill it every 1-3 cleaning cycles. The dock alerts you when it's low. For scheduled daily cleans on a small home, you might refill every 2-3 days. Larger homes may need daily refilling during active cleaning seasons.
Can the S8 Pro Ultra handle both carpet and hardwood?
Yes. The VibraRise 2.0 system automatically lifts the mop pad when it detects carpet. The rubber rollers and 6,000 Pa suction work on both surfaces. Sonic vibration at 3,000 strokes per minute cleans hardwood thoroughly without leaving excess water.
Is Matter support available now?
Matter support is promised in a future firmware update. Currently, the robot works with Alexa, Google Home, and Siri Shortcuts for voice control. Once Matter support arrives, HomeKit control and local processing will become possible.
How long does the battery last on a single charge?
Battery runtime varies by mode. Quiet mode delivers about 180 minutes of runtime. Balanced mode gives 120-150 minutes. Max power mode provides 90-120 minutes. The 5,200 mAh battery is replaceable if it degrades after several years.