Live nowPrime Day 2026October 6 to 7, 2026Starts in--d--h--m--sSee the deals
Robot Vacuums · Head to head

iRobot Roomba Max 705 vs Roborock Saros 20 Sonic

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official iRobot and Roborock sites.
2026 verdict
Choosing between these two robot vacuums starts with a simple question: does the floor need washing?
Roborock Saros 20 Sonic
Winner
Roborock Saros 20 Sonic

Last recorded priceOct 1, 2026$1499.99

Currently unavailable on Amazon USA
The Roborock Saros 20 Sonic mops, and its dock empties, washes and dries the mop and doses detergent, while the iRobot Roomba Max 705 is a vacuum-only machine with a self-emptying AutoEmpty dock. Beyond that the Roborock Saros 20 Sonic leads on suction at 36,000 Pa against 13,000 Pa, on runtime at 190 minutes against 120, on height at 79.8 mm against 104 mm, and it is the better reviewed. The iRobot Roomba Max 705 is the more affordable option and carries a larger 275 ml onboard bin. Pick the Roborock Saros 20 Sonic to vacuum and mop in one robot, and the iRobot Roomba Max 705 for carpet-only homes on a budget.
vs
Deals by email

Robot Vacuum prices change while you decide

We follow prices across the catalog and email you the best deals we find.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Your subscription has been successful.
FeatureiRobot Roomba Max 705Roborock Saros 20 SonicWinner
Rating3.84.2Roborock Saros 20 Sonic
Battery Life120 minutes190 minutesRoborock Saros 20 Sonic
Suction Power13000Pa36000PaRoborock Saros 20 Sonic
Mopping FunctionalityNOYESRoborock Saros 20 Sonic
Auto Mop WashingNOYESRoborock Saros 20 Sonic
Auto Mop DryingNOYESRoborock Saros 20 Sonic
Onboard Dustbin Capacity275ml228mliRobot Roomba Max 705
Warranty1 year1 yearTie
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFi, BluetoothTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie

What the differences mean

Mopping

The Roborock Saros 20 Sonic mops, and the dock washes and dries the pads and lifts them for carpet. The iRobot Roomba Max 705 does not mop at all, so hard floors stay a manual job. In a carpet-only home that missing pad is a simpler machine rather than a feature you will miss.

Suction and runtime

The Roborock Saros 20 Sonic is rated at 36,000 Pa and 190 minutes, against 13,000 Pa and 120 minutes on the iRobot Roomba Max 705, and it also charges in about 2.5 hours instead of 4.5. On a large floor the runtime is fewer trips home.

Height under furniture

The Roborock Saros 20 Sonic is 79.8 mm tall, so it slides under more sofas and beds than the iRobot Roomba Max 705 at 104 mm. Both use LiDAR, obstacle detection, multi-room maps and no-go zones, so the difference is the body, not the brain.

Connectivity

Both support 5 GHz Wi-Fi and work with Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter. Both list Bluetooth. Smart-home reach is a tie, and so is the radio set.

Onboard bin

The iRobot Roomba Max 705 carries a 275 ml onboard bin, ahead of the 228 ml on the Roborock Saros 20 Sonic, and both self-empty into their docks. The iRobot AutoEmpty dock is the smaller, lower station of the two, made for vacuuming only.

Which one to buy if

Winner
Prime exclusive deal

Last recorded priceOct 1, 2026$1499.99

Currently unavailable on Amazon USA
  • + Rating: 4.2
  • + Battery Life: 190 minutes
  • + Suction Power: 36000Pa
  • - Onboard Dustbin Capacity: 228ml vs 275ml

What owners say

The iRobot Roomba Max 705 is the only side of this pair with owner reviews, and many owners arrived from an older Roomba. They praise LiDAR mapping that holds across rooms, an AutoEmpty dock that clears the bin for weeks, and Carpet Boost that picks up pet hair and dander on carpet, and they call this generation quieter than the Roombas it replaced. The recurring complaint is Wi-Fi setup: the app can fail when the router password contains special characters, and a few report the dock not fully clearing the bin or a false stuck error. Because the robot does not mop, those owners keep a separate mop for hard floors.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • iRobot Roomba Max 705
  • Roborock Saros 20 Sonic

Loading price history...

Frequently Asked Questions

Which is better overall: iRobot Roomba Max 705 or Roborock Saros 20 Sonic?

The Roborock Saros 20 Sonic, unless you truly do not want a mop. It adds mopping with dock washing and drying, 36,000 Pa against 13,000 Pa, 190 minutes against 120, and a 79.8 mm body. The iRobot Roomba Max 705 is the more affordable vacuum-only robot with a self-empty dock.

What is the biggest difference between the iRobot Roomba Max 705 and the Roborock Saros 20 Sonic?

The mop. The Roborock Saros 20 Sonic vacuums and mops, and the dock washes and dries the pads. The iRobot Roomba Max 705 does not mop. Suction and runtime follow: 36,000 Pa and 190 minutes against 13,000 Pa and 120 minutes.

Does the iRobot Roomba Max 705 mop, or only the Roborock Saros 20 Sonic?

Only the Roborock Saros 20 Sonic mops. The iRobot Roomba Max 705 is vacuum only, with a self-empty dock, LiDAR mapping and Carpet Boost. Both work with Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter.

Which robot vacuum fits under low furniture?

The Roborock Saros 20 Sonic, at 79.8 mm tall, against 104 mm for the iRobot Roomba Max 705. That gap is what decides whether a low sofa or bed frame is inside the map or a permanent skip.

Who should buy the Roborock Saros 20 Sonic?

Homes that want one robot to vacuum and mop, with 36,000 Pa, a 190 minute battery, a short body and a dock that washes and dries the mop, including buyers on Apple Home or Matter.

Who should buy the iRobot Roomba Max 705?

Carpet-heavy homes that only need vacuuming, want a self-empty dock and LiDAR maps, and prefer the more affordable robot without a mop to maintain.

Full comparison table

Compare all 163 Robot Vacuums side by side

You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 163 Robot Vacuums
  • 46 specs compared
  • 41 filters
Open the full comparison
More Robot Vacuums

Top Robot Vacuums to compare next

163 robot vacuums from 12 brands compared: Roborock, Dreame, Ecovacs, iRobot and more. Suction, navigation, mopping, self-emptying docks and prices.

All Robot Vacuums
iRobot

More iRobot products

A sharper look at other iRobot products worth comparing.

Explore iRobot
Roborock

More Roborock products

A sharper look at other Roborock products worth comparing.

Explore Roborock