Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
AllTravelTechClothesShoesJewelryHomeBeautyOutdoorsToys
This hour's deals
Roborock
Roborock S8 Max Ultra Robot Vacuum with Refill & Drainage System
−50%
Home · RoboticsSelect

Roborock S8 Max Ultra Robot Vacuum with Refill & Drainage System

Deal score 7.1 · Great deal
$849.99$1,699.99 RoboticsSelect's regular price

You save $850.00 at RoboticsSelect

Deal.ai's agents found this deal on November 9. The store may have changed its price since.

Why it's a great deal

  • Elsewhere right now: Roborock $849.99, Home Outlet Direct $849.99 (typical $849.99 across 2 stores)
  • RoboticsSelect lists its regular price at $1,699.99: 50% off by its own figures
  • Rated 4.8 out of 5 by 28 buyers
Visit RoboticsSelect

Every store we checked

  • Zulily.comNew

    In stock

    $650.99Observed at 4:02 PM
    Visit Zulily.com
  • RoboticsSelectNew

    In stock

    $849.99Observed at 4:02 PM
    Visit RoboticsSelect
  • Renewable OutdoorsNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Renewable Outdoors
  • RoborockNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Roborock
  • Home Outlet DirectNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Home Outlet Direct
  • The Robot DirectNew

    In stock

    $849.99Observed at 4:02 PM
    Visit The Robot Direct
  • Urban SupplyNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Urban Supply
  • ShopNew

    In stockSold by Shop app

    $849.99Observed at 4:02 PM
    Visit Shop
  • WellbotsNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Wellbots
  • Touch of ModernNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Touch of Modern
  • PetAveNew

    In stock

    $849.99Observed at 4:02 PM
    Visit PetAve
  • SilariusNew

    In stock

    $849.99Observed at 4:02 PM
    Visit Silarius
  • eBayNew

    In stockSold by k-wave_store

    $1,999.91Verified
    Visit eBay
  • OmniNova Home SystemsNew

    Availability unknown

    $599.99Observed Nov 2, 2026, 8:32 PM
    Visit OmniNova Home Systems
  • eBayOpen box

    Availability unknownSold by conwag_72 (100% positive, 23 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $599.99+ $28.81 shippingVerified
    Visit eBay
  • East Car AudioNew

    Availability unknown

    $829.99Observed Nov 6, 2026, 12:17 PM
    Visit East Car Audio

Store links may earn us a commission.

Price history and every store's price →

Reading RoboticsSelect’s product page for the details…

Specs

Cordless
Yes
Assistant Support
Google Assistant, Amazon Alexa
Weight
41 lb

About the Roborock S8 Max Ultra Robot Vacuum with Refill & Drainage System

The Roborock S8 Max Ultra is a robot vacuum and mop with a dock that refills its water tank and drains dirty water, so you don't handle the mop tank yourself. It pairs a 10000 Pa suction rating with a dual rubber brush and a FlexiArm side brush that swings out to reach corners, and the dock also washes and dries the mop pad. It suits homes with mostly hard floors and some rugs, and owners rate its suction and hands-off mopping highly. Against the S8 Pro Ultra it trades manual tank swaps for a plumbing hookup and a bigger dock.

Best forHomes with mostly hard floors and some rugsOwners who want hands-off moppingLarge open-plan spacesPet owners dealing with hair
Pros
  • Dock refills and drains the mop water, so no manual tank swaps
  • Strong 10000 Pa suction and dual rubber brushes handle pet hair
  • FlexiArm side brush extends into corners and along edges
  • Mop pad is washed and hot-air dried in the dock
  • Works with Google Assistant and Amazon Alexa
Cons

More deals like this

  • All Roborock deals and products
  • All RoboticsSelect deals and prices
  • All Home Outlet Direct deals and prices
  • All Roborock deals and prices
  • Early Black Friday Vacuum Deals 2026

Price facts

  • This deal was $849.99 at RoboticsSelect on Nov 9.
  • Last seen at $599.99 at OmniNova Home Systems on Nov 2.
  • It's up $30.00 from $569.99 a week ago.
  • Checked at 16 stores.

Ask our agent about this deal

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

  • Dock is large and heavy; the whole setup weighs about 41 lb
  • Needs a water line or nearby tap for the refill and drain plumbing
  • Mop pad still needs periodic deep cleaning
  • High suction modes are loud
  • Premium price against the S8 Pro Ultra and other rivals
  • What reviewers say

    • 4.8 / 528 ratings

    Owners rate it 4.8 out of 5 across 28 ratings, with most praise going to the self-refilling dock and strong suction. Complaints center on the dock's size and the plumbing setup.

    What people mention
    • Dock plumbingMixedOwners like the refill and drain system but say the water line setup takes planning.
    • SuctionPraisedReviewers report strong pickup of dust and pet hair on hard floors and low-pile rugs.
    • Corner cleaningPraisedThe extending side brush is called out for reaching edges and corners better than fixed brushes.
    • NoiseCriticisedHigh suction modes are described as loud enough to interrupt conversation.
    • Dock sizeCriticisedThe dock is bulky and heavy, so owners say it needs a dedicated spot.
    • Mop dryingPraisedHot-air drying of the mop pad is credited with reducing damp smells.

    Questions and answers

    Is the S8 Max Ultra worth it over the S8 Pro Ultra?
    The Max Ultra adds the refill and drain dock, so you stop swapping the clean and dirty water tanks. If you don't want plumbing near the dock, the Pro Ultra covers the same cleaning with manual tank swaps.
    Does it need a water line?
    The refill and drainage system connects to a water supply and drain, so plan for a tap or line near where the dock sits. Without that hookup the dock's water automation doesn't work.
    How does it handle pet hair?
    The dual rubber brushes and 10000 Pa suction are built for hair pickup, and owners report good results on hard floors. Hair can still wrap around the side brush and needs occasional clearing.
    What's in the box?
    You get the robot, the refill and drain dock, a mop pad, and the plumbing parts for the water hookup. Check the listing for spare pads and brushes.
    Does it work with Alexa and Google Assistant?
    Yes, it supports both Amazon Alexa and Google Assistant for voice commands. You can also set schedules and no-go zones in the Roborock app.

    More from Roborock

    • R
      Roborock Qrevo CurvX Robot Vacuum with Multifunctional Dock 3.0 Thermo+
      Roborock Qrevo CurvX Robot Vacuum with Multifunctional Dock 3.0 Thermo+
    • R
      Roborock Q10 S5+ Robot Vacuum and Mop with Auto-Empty Dock
      Roborock Q10 S5+ Robot Vacuum and Mop with Auto-Empty Dock
    • R
      Roborock Qrevo Edge 2 Robot Vacuum
      Roborock Qrevo Edge 2 Robot Vacuum
    • R
      Roborock QV 35A Robot Vacuum with Multifunctional Dock
      Roborock QV 35A Robot Vacuum with Multifunctional Dock
    • R
      Roborock H60 Hub Ultra Cordless Vacuum Cleaner
      Roborock H60 Hub Ultra Cordless Vacuum Cleaner
    • R
      Roborock Q10 X5+ Robot Vacuum and Mop with Auto-Empty Dock
      Roborock Q10 X5+ Robot Vacuum and Mop with Auto-Empty Dock
    • R
      Roborock Qrevo Curv 5A1 Robot Vacuum and Mop
      Roborock Qrevo Curv 5A1 Robot Vacuum and Mop
    • R
      Roborock Q7 M5+ Robot Vacuum and Mop
      Roborock Q7 M5+ Robot Vacuum and Mop

    More robot vacuums

    • G
      Goovi Robot Vacuum and Mop Combo with Schedule Wi-Fi/App/Remote
      Goovi Robot Vacuum and Mop Combo with Schedule Wi-Fi/App/Remote
    • D
      Dreame X50 Ultra Robot Vacuum and Mop
      Dreame X50 Ultra Robot Vacuum and Mop
    • I
      iRobot Roomba Combo j5+ Self-Emptying Robot Vacuum and Mop
      iRobot Roomba Combo j5+ Self-Emptying Robot Vacuum and Mop
    • I
      iRobot Roomba 208 DustCompactor Combo Robot Vacuum & Mop
      iRobot Roomba 208 DustCompactor Combo Robot Vacuum & Mop
    • I
      iRobot Roomba 105 Vac Robot Vacuum
      iRobot Roomba 105 Vac Robot Vacuum
    • I
      iRobot Roomba 1020 Combo Robot Vacuum & Mop
      iRobot Roomba 1020 Combo Robot Vacuum & Mop
    • G
      GOOVI Robot Vacuum and Mop with Self-Empty Station
      GOOVI Robot Vacuum and Mop with Self-Empty Station
    • I
      iRobot Roomba 105 Robot Vacuum
      iRobot Roomba 105 Robot Vacuum