Roborock S8 Max Ultra with Refill & Drainage System

Price facts

• Lowest price today: CA$699.99 at Amazon (checked Nov 10, 2026).

Our take on the Roborock S8 Max Ultra with Refill & Drainage System

The Roborock S8 Max Ultra is a flagship robot vacuum and mop with an 8-in-1 RockDock Ultra that refills the water tank, drains dirty water, washes the mop in hot water up to 140°F, and dries it with heated air. It has 8,000Pa suction, corner-to-edge cleaning, and an auto detergent dispenser that lasts over three months. The dock's plumbing and bulk set it apart from rivals that still need manual tank refills, and owners rate it highly for hands-free upkeep.

Roborock S8 Max Ultra with Refill & Drainage System prices at every store

Roborock S8 Max Ultra with Refill & Drainage System price history

Lowest price we've seen: CA$699.99 on Nov 10 at Amazon. Tracked across 1 store since Nov 10.

Questions and answers

Does it need a water line?

The Refill & Drainage System connects to your home's water supply and drain for hands-free refilling and emptying. Without that plumbing, you would need the standard dock version instead.

How does it compare with the S8 Pro Ultra?

The Max Ultra adds the refill and drainage plumbing and an auto detergent dispenser to the dock. The S8 Pro Ultra washes and dries the mop but still needs manual water tank refills.

What comes in the box?

You get the robot vacuum, the RockDock Ultra dock, one mop cloth and mount, one dust bag, and the power cable. Detergent and spare bags are sold separately.

How often do I replace the mop cloth and dust bag?

Roborock recommends replacing the mop cloth every few months and the dust bag when full, roughly every one to two months. The 580ml detergent tank lasts over three months.

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.

Is the S8 Max Ultra worth it?

It is a premium buy, but the self-refilling, self-draining dock removes most daily water chores. That convenience is what you pay for over cheaper robots with manual tanks.

Where is the Roborock S8 Max Ultra with Refill & Drainage System cheapest?

At Amazon, for CA$699.99, as of our latest check.

What do buyers say about the Roborock S8 Max Ultra with Refill & Drainage System?

Rated 4.8 out of 5 from 28 ratings.

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