iRobot Roomba Plus 505X Combo
iRobot says the Roomba Plus 505X Combo climbs thresholds up to 16 mm (maker's number, step type not given), stands 4.2 in tall, and holds 75 days of dirt in its dock.
Refills: about $13-$27 a year for 1 of its 3 parts at Amazon prices checked November 2, 2026. The rest are not published. Details.
Price as of November 2, 2026.
| Limit | Maker figure | Source |
|---|---|---|
| Threshold, up to | 16 mm (maker's number, step type not given) | homesupport.irobot.com |
| Height | 4.2 in | irobot.com |
| Dock holds dirt for | 75 days | irobot.com |
Not published by iRobot: a mop-lift height.
On our guides
- Pet hair, hardwood floors: passes 2 of 5 pet checks
Compare: Which Roomba to buy, Roomba alternatives that cost less, Roborock vs Roomba.
Maker figures, not our tests. Method.
Amazon listing
We link iRobot Roomba 505X Robot Vacuum & Mop Combo, 70x More Suction, Multifunction Dock, 75 Day Self-Emptying, Self-. Not linked:
- A different model: iRobot Roomba Plus 505 Combo Robot Vacuum & Mop with AutoWash Dock - Extending Spinning Mop Pads, Se
- Part or refill: 25 Pcs Replacement Parts for iRobot Roomba 505X/Plus 405/505/507 Combo | Vacuum Attachments Include
What the maker says the iRobot Roomba Plus 505X Combo does
Mopping
It mops with two spinning pads. iRobot gives no mop-lift height. (maker page)
Mop upkeep
The dock washes the mop. The maker does not say the dock dries it, so check the pad does not stay damp. (maker page)
Obstacle avoidance
The maker does not say how it avoids cords, socks or pet messes. Pick up the floor before it runs.
Dock
Empties itself into a bag: about 75 days per bag. (maker page)
App and Wi-Fi
- Without the app: iRobot says Roombas can Clean, Dock and Spot Clean without the app. (maker’s words)
- Without internet: iRobot says cleaning needs no app or Wi-Fi; it does not say schedules or maps run offline. (maker’s words)
Parts, warranty and repair
Warranty: 1 year (maker page). Where iRobot sells parts and how it handles repairs: iRobot parts, warranty and repair.
iRobot Roomba Plus 505X Combo refills: cost a year
Prices November 2, 2026.
| Part | Replace | Amazon pack | A year |
|---|---|---|---|
| Filter | every 3-6 months (maker) | $19.99 for 3 at Amazon | $13-$27 |
| Dock dirt disposal bag | up to 75 days per bag (maker) | not published no Amazon listing of the maker's own part names this model | not published |
| Mop pads | not published | not published the maker does not publish how often to replace it | not published |
Total for the refills we could price: $13-$27 a year.
More limits iRobot publishes
| Limit | Maker figure | Read from |
|---|---|---|
| Mop | two spinning pads | irobot.com |
| Self-emptying dock | yes | irobot.com |
| Warranty | 1 year | irobot.com |
| Washes its own mop | yes | irobot.com |
| Mapping | lidar | irobot.com |
Recall check (US and Canada): none found, November 2, 2026. iRobot has 1 other robot recall on file, for different models: iRobot Clean Base dock for the Roomba i7+.
Other iRobot models we track: Roomba 105 Combo, Roomba 105 Vac, Roomba 105X Combo, Roomba 115X Combo, Roomba 205 Combo, Roomba Combo 10 Max, Roomba Max 705 Combo, Roomba Max 715 Vac, Roomba Max 775 Combo, Roomba Max 875 Combo, Roomba Plus 405 Combo, Roomba Plus 415 Combo, Roomba Plus 415X Combo, Roomba Plus 515 Combo, Roomba Plus 575 Combo, Roomba Plus 678 Combo.
See also: Roomba 415X vs 505X: which one to buy.