iRobot Roomba S9+ Full Review & Features 2026

iRobot Roomba s9+ Features: A Complete Guide for 2026

The iRobot Roomba s9+ was once the undisputed king of robot vacuums — the first high-end model to combine a self-emptying base, D-shaped design, and camera-based mapping into one package. PCMag awarded it Editors' Choice and called it "the best robot vacuum we've tested." Tom's Guide described it as "powerful enough to replace a human using a corded vacuum cleaner." But in December 2025, iRobot filed for bankruptcy, which changes the calculus for anyone considering this machine in 2026. This guide breaks down exactly what the s9+ does, where it excels, where it falls short, and how it compares to the current market leaders you should seriously consider instead.

Design and Build Quality

The most visually distinctive feature of the Roomba s9+ is its D-shaped chassis — a deliberate departure from the circular form factor used on every other Roomba and most competing robot vacuums. The flat edge of the D allows the robot to align flush against walls and push deep into corners, areas that circular robots routinely miss. This design was borrowed from Neato's approach but executed with a more premium finish: a copper-toned lid that coordinates with the Clean Base auto-empty station.

• Dimensions: 12.3 x 12.3 x 3.5 inches — notably smaller than the Roomba i7+ (13.4 x 3.7 inches)
• Shape: D-shaped, enabling true corner and baseboard cleaning
• Height clearance: 3.5 inches — clears most standard furniture legs
• Aesthetic: Premium copper lid, matte black base — designed to be visible in a living space without looking industrial

The lower profile compared to the i7+ means it fits under more furniture. The copper accents match the Clean Base, making the charging station feel like an intentional design object rather than an afterthought. Build quality is solid throughout — this is a $1,399 device and it feels like one.

Suction Power and Cleaning Performance

The headline specification on the s9+ is suction power: iRobot claims four times the suction of the Roomba i7+. In testing, PCMag confirmed this translates to real-world cleaning performance on both hard floors and carpets. The robot uses a three-stage cleaning system with dual rubber brushes — a design that reduces hair tangles compared to bristle brushes.

The rubber brush rolls work particularly well for pet hair, which tends to wrap around traditional bristle brushes and require manual cleaning. The s9+ handles pet hair pickup with substantially less maintenance than older brush designs. On carpets, the four-times-stronger suction pulls embedded debris that lighter robots leave behind.

Where Performance Stands in the Current Market

It's worth being direct: the s9+ was the benchmark in 2019 and held that position for several years. In 2026, the competitive landscape has moved significantly. Robots like the Roborock S8 Maxv Ultra and the Dreame X40 Ultra now offer comparable or superior suction with the addition of active mopping — a feature the s9+ lacks entirely. If your floors are a mix of hard surfaces and carpet, the absence of mopping capability is a meaningful gap.

Navigation and Mapping Technology

The s9+ uses iRobot's iAdapt 3.0 navigation system, combining a front-facing camera, floor-tracking sensors, and cliff sensors to build and maintain a map of your home. Unlike LIDAR-based systems used by many competitors, the s9+ relies on vSLAM (visual simultaneous localization and mapping) — using visual landmarks rather than laser ranging to understand its environment.

How the Mapping Works in Practice

• Initial mapping run takes one to two cleaning sessions to generate a usable floor plan
• Maps are stored persistently — the robot remembers your layout between sessions
• The iRobot Home app displays the map and allows room labeling and targeted cleaning zones
• Keep Out Zones can be drawn digitally in the app, replacing the need for physical Virtual Wall barriers
• The robot learns over time, improving route efficiency with repeated cleaning sessions

Tom's Guide found the mapping "quick and easy" with "easy-to-use mapping controls in app." For most home layouts, the vSLAM approach works reliably in well-lit conditions. The limitation is low-light performance — the camera-based system can struggle in dark rooms in ways that LIDAR-based competitors do not.

If you're comparing mapping sophistication, the Ecovacs Deebot X2 Omni uses a combination of LIDAR and visual recognition to identify furniture and obstacles by type, a step beyond what the s9+ offers. Similarly, the Roborock Q Revo Maxv uses LIDAR mapping which is unaffected by lighting conditions.

Clean Base: Auto-Empty Technology

The Clean Base Automatic Dirt Disposal is what separates the s9+ from standard robot vacuums. When a cleaning session ends, the robot docks and the Clean Base suctions the contents of the onboard dustbin into a sealed bag inside the tower. The bags hold approximately 60 days of debris before requiring replacement.

Auto-Empty Station Specifications

The ongoing cost of replacement bags is a real consideration. Unlike competitors that use bagless auto-empty systems (where you dump a bin rather than replace bags), the s9+ locks you into consumable purchases. At roughly $60–$80 per year in bags, it's not prohibitive, but it's worth factoring into the total cost of ownership.

Tom's Guide specifically flagged the noise: both the robot itself and the dust-emptying process are loud. If you run cleaning schedules during work-from-home hours or while sleeping, the Clean Base evacuation will be audible from adjacent rooms.

Battery Life and Coverage

PCMag's tested battery life is 60 minutes on a full charge. The s9+ supports automatic recharge and resume — if it runs low mid-clean, it returns to the Clean Base, recharges, then continues where it left off. This means battery life is less of a hard ceiling for large homes than the raw 60-minute figure suggests.

App Control and Smart Home Integration

The iRobot Home app provides full control over the s9+, including scheduling, targeted room cleaning, zone restrictions, and cleaning history. The robot integrates with Amazon Alexa and Google Assistant for voice commands — "Hey Google, tell Roomba to clean the kitchen" works as expected once the skill is configured.

The app interface is straightforward, with the interactive map being the centerpiece. You can tap a labeled room to send the robot there directly, draw Keep Out Zones by dragging on the map, and set schedules by room or by day. The Imprint Smart Mapping feature allows the s9+ to work in coordination with iRobot's Braava jet m6 mop — the vacuum runs first, then signals the mop to clean the same areas. This is a compelling feature for people who own both devices, though it requires purchasing a separate mop.

The Bankruptcy Question: Should You Buy an s9+ in 2026?

This is the most important section of this guide. iRobot filed for bankruptcy in December 2025. As of early 2026, the company is in restructuring, and the long-term availability of replacement bags, software updates, and app support is genuinely uncertain. This is not a hypothetical risk — it is the current reality.

What the Bankruptcy Means for s9+ Owners

• Replacement bags: Currently available, but supply chain continuity post-restructuring is unknown
• App and cloud services: The iRobot Home app requires cloud connectivity for mapping — if servers go offline, the robot's smart features stop working
• Software updates: New features and bug fixes are unlikely during active restructuring
• Warranty support: Customer service availability is reduced during bankruptcy proceedings

If you already own an s9+, continue using it — the hardware is excellent and will likely keep functioning. If you're considering buying one new, the calculus is harder to justify. At its original $1,399 price point, there are better-supported alternatives. Even at discounted post-bankruptcy pricing, the support uncertainty is a meaningful risk for a device this dependent on cloud services.

Better Alternatives to Consider

For buyers who want the self-emptying, high-suction premium experience the s9+ pioneered, these alternatives offer comparable performance with better long-term support prospects:

• The iRobot Roomba Combo j9+ — iRobot's own newer model, adds mopping, and is available at lower prices amid the restructuring
• The Shark Matrix Plus — strong suction, self-empty base, from a financially stable company, at a significantly lower price
• The Samsung Bespoke Jet Bot Combo Ai — premium design, AI obstacle avoidance, mopping included, backed by Samsung's support infrastructure
• The Narwal Freo X Plus — excellent mopping combined with strong vacuuming from a growing, stable brand

Common Mistakes When Buying or Using the Roomba s9+

Mistake 1: Buying New at Full Price in 2026

With iRobot in bankruptcy, paying $1,399 (or even $800–$1,000 for a discounted unit) for a device whose app infrastructure may degrade is a poor value decision. If you find a unit at $400–$500 and understand the support risks, that's a different conversation — but full retail is not justifiable.

Mistake 2: Expecting Mopping Capability

A surprising number of buyers assume premium robot vacuums include mopping. The s9+ is vacuum-only. If you want mopping, you need a separate Braava jet m6 ($449 at launch) or a competing combo unit. The total cost of the s9+ plus m6 pairing exceeded $1,800 at launch — more than twice what current combo competitors charge for an integrated solution.

Mistake 3: Running in Low-Light Conditions

The vSLAM camera-based navigation requires adequate ambient light to function accurately. Scheduling cleans at night without leaving lights on will result in navigation errors, missed areas, and the robot getting confused or stuck. Unlike LIDAR robots, the s9+ is not truly light-independent.

Mistake 4: Ignoring the Ongoing Bag Cost

First-time auto-empty robot vacuum buyers often overlook consumable costs. The s9+ requires proprietary AllergenLock bags — generic bags do not fit and iRobot does not support third-party bags. At $15–$20 per 3-pack, and roughly one pack every 2–3 months for a typical home, budget approximately $60–$80 per year in bags alone.

Mistake 5: Not Using Room-Level Cleaning

Many s9+ owners run full-home cleans daily when targeted room cleans would preserve battery life and reduce wear. Once the map is established and rooms are labeled, sending the robot to specific rooms on specific days extends consumable life and reduces noise disruption. Use the scheduling feature by room rather than running whole-home cleans every session.

Final Verdict

The iRobot Roomba s9+ earned its reputation. The D-shaped design, four-times suction power over its predecessor, camera-based mapping, and first-generation auto-empty technology were genuinely innovative at launch in 2019. PCMag's Editors' Choice designation was well-earned, and Tom's Guide's description of it as capable of "replacing a human using a corded vacuum cleaner" held up in testing.

In 2026, the picture is more complicated. The hardware remains strong. The software and support ecosystem is uncertain following iRobot's December 2025 bankruptcy filing. The competitive landscape has moved: current premium robots from Roborock, Dreame, and Ecovacs offer higher suction, integrated mopping, and LIDAR navigation at lower price points, backed by companies in better financial health.

If you own an s9+, keep using it — it's still an excellent machine. If you're shopping for a new robot vacuum at the premium tier, compare it carefully against current alternatives before committing. The features that made the s9+ revolutionary are now table stakes across the category, and the iRobot uncertainty is a real factor that responsible buyers should weigh.