iRobot Roomba Max 875 Combo + AutoWash Dock vs Roborock Saros 20

Technical comparison · Robot vacuums and mops

In brief

iRobot Roomba Max 875 Combo + AutoWash Dock is ahead on days between bag changes; beyond that the two models differ in navigation system and obstacle avoidance: design differences, not a ranking. On the category's technical index, Roborock Saros 20 ranks #2 of 30, iRobot Roomba Max 875 Combo + AutoWash Dock #19.

Parameter
Roborock Saros 20 Saros 20 Roborock F4 · Semi-professional
Identity
Launch year 2026 2026
Use tier F4 — Semi-professional F4 — Semi-professional
Price
Price ~1000–2200 € ~1000–2200 €
Price updated on 09/2026 09/2026
Universal specs
Dimensions (W×D×H) 35.6 × 36 × 9.98 cm —
Weight 5.5 kg —
Voltage — 220 V
Category specs
Cleaning functions Vacuums, Mops Vacuums, Mops
Availability in Europe On sale On sale
Suction power 35000 Pa 36000 Pa
Navigation system Rotating LiDAR Solid-state LiDAR
Release year 2026 2026
Onboard camera Yes Yes
Obstacle avoidance Camera with AI recognition 3D time-of-flight sensor, Camera with AI recognition
Onboard microphone — Yes
Where object recognition runs — On the device
Robot height — 79.8 mm
Declared data server region Multiple regions European Union
Maximum threshold height — 45 mm
Battery capacity — 6400 mAh
Live video from the app — Yes
Charging time — 150 min
Camera privacy controls — Remote video off until enabled, Confirmation on the robot, Password in the app
Microphone can be disabled — Yes
Mopping system Roller with continuous rinsing Rotating discs
Guaranteed years of updates — 2 anni
Extending mop for edges Yes Yes
Dock functions Automatic emptying, Mop washing, Hot water washing, Mop drying, Warm air drying, Detergent dispenser Automatic emptying, Mop washing, Hot water washing, Mop drying, Warm air drying, Detergent dispenser
Wi-Fi bands — 2.4 GHz, 5 GHz
App — Roborock
Mop washing water temperature 80 °C 100 °C
Days between bag changes 90 giorni 65 giorni
Dock height 475 mm —
Main brush type Bristles —
Anti-tangle declared Yes Yes
Filter type — Washable
Carpet handling Detects the carpet, Lifts the mop Boosts suction, Lifts the mop, Avoids the carpet
Matter — Built in
Built-in voice assistant — Commands recognised on board
Cliff sensors — Yes
Saved maps (floors) 3 —

The differences that matter

  • Days between bag changes: iRobot Roomba Max 875 Combo + AutoWash Dock 90 giorni vs Roborock Saros 20 65 giorni
  • Navigation system: iRobot Roomba Max 875 Combo + AutoWash Dock Rotating LiDAR · Roborock Saros 20 Solid-state LiDAR
  • Obstacle avoidance: iRobot Roomba Max 875 Combo + AutoWash Dock Camera with AI recognition · Roborock Saros 20 3D time-of-flight sensor, Camera with AI recognition
  • Declared data server region: iRobot Roomba Max 875 Combo + AutoWash Dock Multiple regions · Roborock Saros 20 European Union
  • Mopping system: iRobot Roomba Max 875 Combo + AutoWash Dock Roller with continuous rinsing · Roborock Saros 20 Rotating discs

In short

iRobot Roomba Max 875 Combo + AutoWash Dock

Measurable advantages: days between bag changes.

See the iRobot Roomba Max 875 Combo + AutoWash Dock sheet →

Roborock Saros 20

Design differences: navigation system: solid-state LiDAR; declared data server region: european Union; mopping system: rotating discs.

See the Roborock Saros 20 sheet →

This comparison points to the two product pages, where you'll find the complete data and the official links.