Cleaning · Comparison
Roomba Max 875 Combo vs. Roborock Saros 20
Our verdict
The Roborock Saros 20 is the safer pick today because it has far more owner history and much stronger threshold climbing claims. The Roomba Max 875 Combo is $400 cheaper with a roller mop and hot-water dock, and suits carpet-heavy homes, but it launched Sept. 2, 2026 and owner reports are still thin.
Which should you buy, iRobot Roomba Max 875 Combo + AutoWash Dock or Roborock Saros 20?
Short answer: Saros 20 for thresholds, low furniture and a longer owner track record; Roomba Max 875 for a roller mop at $400 less in carpet-heavy homes.
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iRobot
iRobot Roomba Max 875 Combo + AutoWash Dock
$1,199.99 at irobot.com, seen Oct 29, 2026 Check price at iRobot
Full guide
Roborock
Roborock Saros 20
$1,599.99 at us.roborock.com, seen Oct 29, 2026 Check price at Roborock
Full guidePick the iRobot Roomba Max 875 Combo + AutoWash Dock if
- You want a roller mop with a hot-water dock
- Your home is mostly carpet with some hard floor
- You'd rather spend $1,199.99 than $1,599.99
Pick the Roborock Saros 20 if
- You have thresholds or door tracks over 1.4 inches
- You need to clean under low furniture
- You want a robot with months of owner reports behind it
How do their specs compare?
| Spec | iRobot Roomba Max 875 Combo + AutoWash Dock | Roborock Saros 20 |
|---|---|---|
| Price (brand store, Oct. 29, 2026) | $1,199.99 (with AutoWash Dock) | $1,599.99 |
| Suction (company claim) | 35,000 Pa, 20 L/s airflow | 36,000 Pa |
| Mop | PowerSpin Max roller, 18 N, 140°F water (claim) | Spinning pads |
| Dock | 176°F roller wash, 131°F drying, bag up to 90 days (claim) | Auto-empty, mop wash, warm-air drying |
| Thresholds (company claim) | 1.38 in | Double up to 3.46 in |
| Height | 3.93 in | 3.14 in (3.13 in low mode, claim) |
| Battery | 5,000 mAh | 6,400 mAh |
| Owner data | One detailed buyer review, few Reddit posts | Many owner threads during 2026 |
| FCC record we matched | Not yet matched (EU model RCO-Y2) | 2AN2O-RRE0CPS01, granted Dec. 16, 2025 |
The Roborock Saros 20 is the safer buy today; the Roomba Max 875 Combo is the cheaper roller-mop option with less owner history. The price gap is $400.
What's the difference between the Roomba Max 875 and the Saros 20?
The mop and the climbing. The Roomba uses a PowerSpin Max roller with 18 N of pressure and a dock that washes at 176°F (company claims). The Saros 20 uses spinning pads but claims it can climb double thresholds up to 3.46 inches, against 1.38 inches for the Roomba.
Which is better for Florida tile?
On spec, the Roomba's roller mop and hot-water dock suit tile, and its 131°F drying helps in humid months. The one detailed reviewer saw streaks at maximum water, though. The Saros 20 is the better fit for homes with sliders, tall door tracks and rugs.
What do owners say about each?
The Roomba reviewer, who bought it, reports thorough, quiet vacuuming and a clean mop finish, but says ThermaMist is warm mist, not steam, and it tracked a coffee spill before cleaning it up. Saros 20 owners praise fine-dust pickup and fast mapping, and complain about rug tags and a September 2026 firmware update that caused errors.
No affiliate links: price links on this page go to brand stores, and we earn nothing from them.
This comparison is based on spec sheets, FCC filings and owner reports; see our methodology. We did not test either robot. Both are legal to buy and use in the US; see the FCC rule explainer and US availability check.
Cost over time: try the buy vs. subscribe calculator.
Related: Roomba Max 875 guide · Saros 20 vs. Ecovacs X12 · Cleaning robots hub
Frequently asked questions
Is the Roomba Max 875 better than the Roborock Saros 20?
Not on the evidence so far. The Saros 20 has more owner history and much higher threshold climbing claims. The Roomba is cheaper and has a roller mop.
Which has stronger suction, Roomba Max 875 or Saros 20?
They're close on paper: 35,000 Pa claimed by iRobot vs. 36,000 Pa by Roborock. Each brand measures its own claim.
Which is better for pet hair?
Both have good early owner reports. The Roomba reviewer saw no hair wrap; Saros 20 owners praise fine-dust pickup but report rug tags being pulled in.
Sources
- iRobot US store: iRobot Roomba Max 875 Combo + AutoWash Dock price (seen 2026-10-29)
- Roborock US store: Roborock Saros 20 price (seen 2026-10-29)
- iRobot press release, Sept. 2, 2026 (seen 2026-10-29)
- iRobot EU declaration of conformity (model RCO-Y2) (seen 2026-10-29)
- FCC ID 2AN2O-RRE0CPS01 (fccid.io mirror of FCC record) (seen 2026-10-29)
- Roborock Saros 20 FCC user manual (model RRE0CPS) (seen 2026-10-29)
- Just A Dad: Roomba Max 875 Combo first look (reviewer bought it) (seen 2026-10-29)
- r/RobotVacuums: Roomba 875 (new owner post) (seen 2026-10-29)
- r/Roborock: Saros 20 initial impressions (seen 2026-10-29)
- r/Roborock: Saros 20 obstacle avoidance complaints (seen 2026-10-29)
- r/Roborock: V02.57.88 update causing cliff sensor error (seen 2026-10-29)
- r/Roborock: Saros 20 Sonic, after a week (seen 2026-10-29)
- r/Roborock: Saros 20 mop mount axle snapped (seen 2026-10-29)
- FCC FAQ on robots and inverters (seen 2026-10-29)