A third-party iRobot Roomba Combo j9+ walkthrough, is it worth buying in 2026?
Update, August 2026: iRobot shipped a real refresh
This article was written in May 2026, before iRobot's 2026 lineup landed. The refresh brings eight new Roomba models with LiDAR navigation and obstacle-recognition AI standard across the range, topped by the Roomba Max 775 Combo. That closes the two hardware gaps this piece leans on hardest: the Roomba Max 705 Combo in our catalog already pairs ClearView Pro LiDAR with a heated AutoWash dock and scores RAI 92, well above the j9+ that the comparison below is built on.
How it changes the answer: on hardware, iRobot is competitive again, so "buy iRobot only for pet waste, Alexa, and support" is now too narrow a verdict. What has not changed is the market position. Roborock still leads global robot vacuum share at about 27% in H2 2025 per IDC, its third straight year at number one, and its Saros line (now headed by the Saros 20 series) still sits at the top of our autonomy index. Read the sections below as the case against the older j-series platform, not as a verdict on iRobot's current range.
Key Takeaways
- iRobot market share has dropped from 50% to 22% since 2022
- The Roomba j9+ (RAI 88) is $200 more than the Roborock Q Revo MaxV (RAI 90)
- iRobot still leads in pet-specific features and has the best customer support in the industry
- If you have a smart home ecosystem (Alexa) or need pet-specific features, iRobot is still worth considering
The Numbers Tell the Story
iRobot invented the robot vacuum category in 2002. For nearly two decades, the Roomba name was synonymous with robot vacuuming. But the data shows a dramatic shift: iRobot's US market share has fallen from roughly 50% in 2022 to 22% in early 2026.
Market share trajectory:
The decline is accelerating. Amazon's abandoned acquisition of iRobot (blocked by EU regulators in early 2024) left the company without a clear strategic direction, while Roborock and Dreame have shipped three generations of increasingly capable hardware.
Feature Gap: iRobot vs Roborock vs Dreame
The feature gap is the core problem. Here is what you get, and do not get, when you buy iRobot in 2026:
| Feature | iRobot j9+ | Roborock S8 MaxV Ultra | Dreame X40 Ultra |
|---|---|---|---|
| RAI Score | 88 | 95 | 95 |
| LiDAR Navigation | ✗ (vSLAM) | ✓ | ✓ |
| Mopping | None | Sonic + auto-wash | Dual spin + auto-wash |
| Hot Water Wash | N/A | ✓ 60°C | ✓ 60°C |
| Self-Empty | ✓ | ✓ | ✓ |
| AI Obstacle ID | ✓ P.O.O.P. | ✓ 100+ objects | ✓ 80+ objects |
| Multi-Floor Maps | 2 max | 4+ | 4+ |
| Price | $899 | $849.99 | $1,299 |
The table tells a clear story. At the same price as the Roborock Q Revo MaxV ($799-899), iRobot offers no mopping, no LiDAR, no hot water wash, and an inferior app. The j9+ has AI obstacle avoidance (its P.O.O.P. guarantee for pet waste is genuinely useful), but Roborock and Dreame have caught up and surpassed it.
✅ When iRobot IS Worth It
You have a pet-heavy household
iRobot's P.O.O.P. guarantee (Precision Obstacle Detection) is specifically trained on pet waste. If you have dogs that have accidents, the j9+ is uniquely reliable at avoiding and documenting problem areas. No other brand offers this level of pet-specific AI training.
You are invested in the Alexa / Amazon ecosystem
iRobot's Alexa integration is the deepest in the industry. Voice commands, routines, and smart home automations work more reliably with iRobot than with Roborock or Dreame. If you live in an Alexa-first home, this matters.
You value customer support and warranty
iRobot has US-based customer support and the most generous warranty in the industry (1-year bumper-to-bumper + extended options). Roborock and Dreame support can be slow, especially for warranty claims. If reliability and support peace of mind matter more than cutting-edge features, iRobot is the safer choice.
❌ When to Switch to Roborock or Dreame
You want mopping capability
iRobot's mopping solution (the Roomba Combo j9+) is an afterthought, a basic water tank that drags a cloth behind the vacuum. It does not scrub, it does not auto-wash, and it leaves streaks. Roborock and Dreame have purpose-built mopping systems that actually clean floors.
You want LiDAR navigation
iRobot still uses camera-based vSLAM navigation, which struggles in dark rooms and takes longer to build maps. LiDAR (used by Roborock and Dreame) is faster, more accurate, and works in complete darkness.
You want more features for less money
The Roborock Q Revo MaxV (RAI 90) costs $799 and includes self-emptying, dual mop pads, LiDAR, and auto mop washing. The iRobot j9+ (RAI 88) costs $899 and has none of those mopping features. The math is clear.
📈 Bottom Line
iRobot is no longer the default choice for robot vacuums in 2026. The brand still has genuine strengths, pet-specific features, Alexa integration, and customer support, and those are no longer its only arguments.
The fair reading in August 2026 is that iRobot lost ground through the j7-to-j9 years, falling behind on navigation and mopping hardware, then answered with the 2026 refresh: eight models, LiDAR and obstacle-recognition AI standard, and a heated wash dock on the Max line. The gap that this article documents is real for the older j-series platform, and it is largely closed on the new one. What the refresh does not undo is market position: Roborock held about 27% of global robot vacuum share in H2 2025 per IDC, and Roborock and Dreame still occupy the top of our autonomy index.
Our verdict: skip the older j-series at full price. If you want a Roomba in 2026, buy into the refreshed Max line, where the LiDAR and dock specs are competitive, and where the pet waste guarantee, Alexa integration, and US-based support come as genuine extras rather than as the whole case.