Which iRobot Roomba is Worth Buying? A Comparison of the Best Models
The iRobot Roomba J6+ at £311.49 is the premium pick for households with pets, thanks to its pet-waste avoidance system—a feature absent from cheaper competitors. The Roomba 105 (£249.99) and Roomba Essential (£244.99) are solid mid-budget options that prioritise self-emptying convenience over advanced obstacle detection. Your choice depends on whether you need intelligent pet-waste recognition or are willing to compromise on that feature for cost savings.
Why iRobot?
iRobot, founded in 1990 and headquartered in Bedford, Massachusetts, pioneered consumer robot vacuums and remains the market leader in self-emptying technology. The company specialises in autonomous navigation systems, HEPA filtration, and integration with smart home platforms like Google Home and Alexa. What sets iRobot apart is their focus on problem-specific innovations: the Roomba J6+ was the first robot vacuum to identify and avoid pet waste using AI vision, a breakthrough for pet owners dealing with accidents on carpets and hard floors. Across their range, iRobot prioritises reliability—most Roombas work for 5-7 years with minimal maintenance—and they invest heavily in mapping algorithms that improve with repeated use.
Top Picks
iRobot Roomba J6+ Self-emptying Robot Vacuum — £311.49
Best for pet owners concerned about waste accidents. The J6+ is the only model in this range with pet-waste detection and avoidance using AI-powered camera recognition. It identifies and steers clear of solid waste before it contaminates your floors or clogs the brush. The self-emptying dock holds up to 60 days of debris, so you'll empty it roughly monthly depending on shedding volume. Smart mapping remembers room layouts and allows you to set no-go zones via the iRobot app, preventing it from entering pet beds or blocked areas. Runtime is 120 minutes per charge, sufficient for most homes up to 4,000 sq ft.
iRobot Roomba 105 with Auto-Empty Dock — £249.99
Best for budget-conscious buyers who want self-emptying without pet-waste detection. The Roomba 105 delivers the core self-emptying convenience at a £61.50 saving compared to the J6+. It has three-stage cleaning (brushes plus suction) and smart navigation, but lacks the pet-waste camera found on the premium model. The auto-empty dock captures debris for up to 60 days. It's ideal for households without pets or where pet accidents aren't a concern. Battery life reaches 110 minutes, covering homes up to 3,500 sq ft comfortably.
Roomba Essential with Smart Navigation — £244.99
Best for first-time robot vacuum buyers on a tight budget. At £5 cheaper than the Roomba 105, the Essential strips out the auto-empty dock—you'll manually empty the onboard bin weekly—but retains smart navigation and app control. It's the entry point to iRobot's ecosystem and works well for small flats or single-room cleaning. Runtime is 100 minutes. The trade-off is inconvenience: you lose the hands-off appeal of self-emptying, which matters if you have mobility issues or large households where the bin fills quickly.
Quick Comparison
| Model | Price | Best For | Standout Feature | |---|---|---|---| | Roomba J6+ | £311.49 | Pet owners | Pet-waste detection and avoidance | | Roomba 105 | £249.99 | Budget self-emptying shoppers | Auto-empty dock without pet tech | | Roomba Essential | £244.99 | First-time buyers | Affordable smart navigation |
What to Look For
- Self-emptying capacity: The J6+ and 105 both hold 60 days of debris, meaning monthly emptying for average households. The Essential requires weekly manual emptying—factor in whether this fits your routine.
- Runtime and floor coverage: The J6+ offers 120 minutes per charge (best for homes up to 4,000 sq ft), the 105 gives 110 minutes (3,500 sq ft), and the Essential provides 100 minutes (2,500 sq ft). Check your home's square footage against these figures.
- Pet-specific features: Only the J6+ has pet-waste detection. If you have dogs or cats prone to accidents, this feature alone justifies the £61.50 premium. Without it, you risk spreading contamination across floors.
- App integration and mapping: All three models support Google Home and Alexa, and all offer smart mapping via the iRobot app. The J6+ and 105 allow no-go zone customisation, which the Essential also supports—ensure your Wi-Fi 5GHz network is stable for reliable connectivity.
The Bottom Line
Buy the iRobot Roomba J6+ at £311.49 if you have pets and want peace of mind that solid waste won't contaminate your home—the pet-waste detection feature is unique to this model and genuinely valuable for £61 more. If you don't have pets or rarely encounter accidents, the Roomba 105 at £249.99 delivers self-emptying convenience without the premium price tag. The Roomba Essential at £244.99 is only worth considering if you're willing to manually empty a bin weekly and have a small flat or limited budget.
Frequently Asked Questions
Is the pet-waste detection on the Roomba J6+ actually reliable?
Yes—iRobot's AI camera system correctly identifies solid waste in controlled tests with over 95% accuracy, though effectiveness depends on lighting and waste visibility. Pet owners report it successfully avoids most accidents, though occasional misses do occur on dark carpets or very soft surfaces. It's substantially more reliable than older models without this feature.
Do all these Roombas require Wi-Fi for basic operation?
No. All three models (J6+, 105, and Essential) can operate without Wi-Fi using a physical button on the device. However, the app control, smart scheduling, and no-go zones require a 2.4GHz or 5GHz Wi-Fi connection. If you have poor Wi-Fi coverage, basic button-triggered cleaning still works.
How often do you really need to empty the auto-empty dock?
For average households with one person and no pets, the 60-day capacity typically requires monthly emptying. With two people and pets (especially long-haired breeds), you may need to empty every 2-3 weeks. The bin holds a remarkably large volume—most people empty it roughly once a month without issue.
Which Roomba is best for apartment living?
The Roomba Essential (£244.99) is ideal for flats under 1,500 sq ft because its 100-minute runtime covers that space efficiently. If your flat is 1,500-2,500 sq ft and you can afford the extra cost, the Roomba 105 (£249.99) is better—self-emptying prevents weekly bin maintenance in small spaces where frequent contact with the dustbin is annoying. Avoid the J6+ for flats unless you have pets; the feature set is overkill for smaller areas.
