iRobot's Roomba Max 875 Combo Explained: What's Actually New in Its Most Powerful Robot Vacuum Yet
9/3/2026
At IFA 2026, iRobot drew significant attention with the unveiling of two new combo robot vacuums: the flagship Roomba Max 875 Combo at $1,199 and the mid-range Roomba Plus 678 Combo at $899. The launch signals that the home robotics segment — often dismissed as a mature, incremental category — still has meaningful engineering headroom to explore. Here's what these machines actually represent, and why the underlying technology choices matter.
What Does "Combo" Mean in a Robot Vacuum?
"Combo" in the robot vacuum world refers to a single unit that handles both dry vacuuming and wet mopping in one pass. This is harder to engineer well than it sounds. The challenge is keeping the mop pad away from carpets while still vacuuming them, managing water so it doesn't saturate hard flooring or create slip hazards, and doing all of this autonomously without user intervention.
Early combo robots solved this crudely — some dragged a damp pad across every surface regardless of flooring type. Modern flagships, like the Max 875 Combo, use retractable or liftable mop systems that physically raise the wet pad when carpet is detected. This requires precise floor-type recognition, reliable actuation, and software that can update its cleaning path in real time.
The Engineering Behind "Most Powerful Yet"
iRobot's claim that the Max 875 Combo is its most powerful robot to date likely refers to a combination of suction strength, mop pressure, and navigation intelligence — though exact specifications should be confirmed at purchase. Here's what typically drives generational leaps in this product category:
Suction and airflow architecture: More powerful motors create higher Pascal ratings (a measure of suction strength), allowing the robot to pull embedded debris from carpet fibers rather than just skimming the surface. The tradeoff is battery draw, so efficiency improvements in brushless motor design are key.
Mop pressure and oscillation: Passive drag mopping leaves residue on grout and textured tiles. Active systems — which press the pad with measured force and scrub in small oscillating patterns — dramatically improve stain removal. This is now a battleground feature among premium combo robots.
AI-assisted mapping: Modern Roomba models use a mix of visual sensors and onboard processing to build and remember floor plans across multiple sessions. The robot learns furniture layouts, identifies "no-go" zones, and adapts its path when objects are moved. This is applied edge AI in a consumer product — similar in principle (if far more constrained) to the perception stacks used in mobile industrial robots.
How This Fits the Broader Home Automation Arc
The $1,199 price point places the Roomba Max 875 Combo firmly in premium territory, which raises a fair question: what are buyers actually paying for over a $300 robot vacuum?
The answer is largely reliability, intelligence, and autonomy. A premium robot vacuum is expected to handle multi-room floor plans without getting stuck, distinguish between a pet water bowl and a spill, recognize when its dustbin needs emptying, and self-clean its mop pad — all without user supervision. These are genuine robotics problems, not just appliance features.
The $899 Roomba Plus 678 Combo targets buyers who want most of that capability without the flagship price. Historically, iRobot's product tiers differ in suction ceiling, mop system sophistication, and the generosity of their auto-empty and auto-refill base stations. Both new models will benefit from iRobot's cloud mapping and app ecosystem, though privacy-conscious buyers should review data handling policies before purchasing.
Why IFA Is Still the Right Stage for This
IFA, held annually in Berlin, remains one of the most important venues for consumer electronics and home technology launches precisely because it draws both press and retail buyers at the same time. Announcing here signals that iRobot is positioning these models for the pre-holiday retail window — the period when robot vacuums consistently spike in consumer purchase intent.
The competitive landscape at IFA 2026 will include strong entries from Roborock, Ecovacs, and Dreame, all of whom have aggressively closed the gap with iRobot on navigation quality and mopping performance. iRobot's response — leading with raw power and the "Max" branding — is a clear attempt to reclaim the performance crown rather than compete on price.
What to Consider Before Buying
If you're evaluating either new Roomba at launch, a few practical considerations:
- Floor plan complexity: Multi-story homes or spaces with lots of furniture legs and chair rungs stress navigation systems more than open layouts. Higher-end models handle these better.
- Pet hair volume: High shedding households benefit most from stronger suction and tangle-resistant brush rolls — features typically concentrated in flagship tiers.
- Mop pad maintenance: Even self-cleaning systems require periodic manual attention. Factor in the ongoing cost and cadence of consumables.
- Base station footprint: Auto-empty and auto-refill bases are physically large. Make sure you have a suitable, permanently accessible spot near a power outlet.
The Bigger Picture
The Roomba Max 875 Combo and Plus 678 Combo are more than incremental updates — they reflect a broader truth about where consumer robotics is headed. Autonomy is increasing, multi-function platforms are replacing single-purpose devices, and onboard intelligence is doing more work that previously required human judgment. The home is becoming one of the most active proving grounds for applied robotics, and launches like this one show that the category is far from finished evolving.
Whether either model is right for your space depends on your specific floor types, household size, and tolerance for the ongoing cost of ownership. But as a statement of where iRobot believes the ceiling of home floor-care robotics sits right now — these are worth paying attention to.
References
This article was drafted with AI assistance and reviewed before publishing.