iRobot / Robot vacuums
iRobot Roomba Plus 678 Combo
A 30,000 Pa roller-mop Roomba with SprayForce AI stain pretreatment, a 45 mm edge-extending roller and a hot-water AutoWash dock.
- Suction and airflow
- 30,000 Pa; 18 L/s with SealForce
- Stain pretreatment
- SprayForce AI: 40,000 Pa high-pressure spray
- Roller mop
- PowerSpin roller with heated water, 15 N; extends up to 45 mm
- Dock and size
- 176°F wash, 131°F drying; up to 90 days; 9.95 cm tall
Launch MSRPUSD 899United States · Sep 2, 2026
Sources checked Nov 7, 2026 · Announced Sep 2, 2026 · Announced with the Max 875 Combo on 2 September 2026 and available at irobot.com the same day. Launch source
Best for
A sub-USD 1,000 Roomba with a hot-water washing dock and stain pretreatment spray. Check whether concentrate auto-dosing matters to you.
Look elsewhere if
Buyers who want heated mist, the fastest roller or automatic concentrate dosing.
What the Roomba Plus 678 Combo is
The Plus 678 Combo shares the SealForce carpet airflow and AutoWash dock concept of the Max 875 Combo at a lower price. Instead of the 875's heated mist, it uses SprayForce AI, a high-pressure spray that pretreats stains before the roller reaches them.
Read the specifications correctly
iRobot lists 30,000 Pa suction, 18 L/s airflow and 15 N roller pressure. Its 40% mopping-efficiency claim compares the 678 with and without SprayForce, not with other brands. The release does not give a roller speed for this model; do not assume the 875's 300 rpm.
Beyond the headline number
Specifications, with context
Values below are manufacturer claims for the stated reference market. WCB has not independently bench-tested this model. Check the official specifications and conditions
| Specification | Official claim | What it means for you |
|---|---|---|
| Suction | 30,000 Pa | Manufacturer figure. Source |
| Airflow | 18 L/s with SealForce | Manufacturer figure. Source |
| Pretreatment | SprayForce AI, 40,000 Pa spray | Up to 40% better mopping efficiency vs without it, per iRobot. Source |
| Roller mop | PowerSpin with heated water, 15 N | Roller speed not stated. Source |
| Edge reach | PerfectEdge: up to 45 mm | Roller extension toward walls. Source |
| Mop lift | 10 mm automatic lift on carpet | Manufacturer figure. Source |
| Dock | 176°F wash, 131°F drying; up to 90 days | Concentrate auto-dosing not listed. Source |
| Size and climbing | 9.95 cm tall; 3.5 cm thresholds | Manufacturer figures. Source |
Who should shortlist it
Shortlist the Plus 678 Combo for carpet-heavy homes that want a washing dock below USD 1,000 in the US. If stubborn kitchen stains are the priority, compare it with the 875's heated mist.
Versions and market differences
The launch release gives a USD 899 MSRP and availability at irobot.com from 2 September 2026, with North American retail later in September. International availability was not stated in the release.
The package behind the price
Price, market & availability
Launch prices are historical. Store snapshots are dated reference points, not live offers; taxes, discounts, stock and included accessories vary.
United States
USD 899
Launch MSRP · Sep 2, 2026
With AutoWash dock; North American retail from later in September 2026.
Check official price sourceBuild your shortlist
Compare models. Understand the tradeoffs.
Manufacturer specifications for the stated reference markets. Rows compare features and workflows, not results from a shared WCB test. Different runtime modes and storage locations are not interchangeable.
| Decision point | iRobot Roomba Plus 678 ComboUnited States | iRobot Roomba Max 875 ComboUnited States | Shark Navigator 2-in-1 Robot Vacuum and MopUnited States |
|---|---|---|---|
| Suction | 30,000 Pa | 35,000 Pa | 4X vs Dreame D10 Plus Gen2 (claim) |
| Mop | Heated-water roller, 15 N | 300 rpm roller, 18 N | Mop for hard floors |
| Dock washes mop | Yes, 176°F | Yes, 176°F | No |
| US price | USD 899 MSRP | USD 1,199 MSRP | USD 499–599 |
WCB interpretation: The 678 keeps iRobot's washing dock and carpet airflow at a lower price than the 875, well above Shark's entry robot in mop care.
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iRobot Roomba Max 875 Combo
iRobot's 2026 flagship: 35,000 Pa suction, a 300 rpm roller mop that extends 45 mm to edges, heated mist and a dock that washes at 176°F.
View modelMaintenance and ownership
The dock washes the roller with 176°F water, dries it with 131°F air and empties debris for up to 90 days. Automatic concentrate dosing is not listed for the 678, so plan to add cleaning solution manually if needed.
The hair-cutting main brush and anti-tangle edge brush reduce wrapping but should still be checked, and the spray nozzle should be kept clear.
Questions about iRobot Roomba Plus 678 Combo
When did it launch?
iRobot announced it alongside the Max 875 Combo on 2 September 2026, available at irobot.com immediately.
What does it cost?
The launch release gives an MSRP of USD 899 with the AutoWash dock.
What is SprayForce AI?
A high-pressure spray, rated at 40,000 Pa, that pretreats detected stains before the roller passes.
Does it have ThermaMist?
No. ThermaMist heated mist is listed for the Max 875 Combo only.
Can it climb thresholds?
iRobot lists thresholds of up to 3.5 cm, the same figure as the Max 875 Combo.
How tall is it?
The release gives a 9.95 cm profile.
Manuals, setup & demonstrations
Official or launch reference; confirm the exact regional model and current terms.
News about iRobot Roomba Plus 678 Combo
iRobot Announces Roomba Max 875 Combo and Plus 678 Combo
The September product release highlights carpet sealing and different heated roller-mopping systems.
Trace every specification
Official sources & support
Checked Nov 7, 2026 · United States · MSRP $899 with AutoWash dock; North American retail from late September 2026
Editorial interpretation by World Clean Biz. Specifications, availability and service terms may change; confirm the exact regional SKU before ordering.