The Roomba j7+ and Roomba S9+ are two of iRobot’s most advanced robot vacuums, catering to different priorities and household needs. While the S9+ boasts unmatched power and cleaning efficiency, the j7+ excels in obstacle avoidance and smart navigation. In this detailed comparison, we’ll explore their features, strengths, and best use cases to help you decide which model is perfect for your home.
Key Specifications: Roomba j7+ vs S9+
| Feature | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Dimensions | 13.3 x 3.4 inches | 12.6 x 3.5 inches |
| Weight | 7.5 lbs | 8.2 lbs |
| Suction Power | 10x Gen 1 models | 40x Gen 1 models |
| Brush System | Dual Multi-Surface Rubber Brushes | Dual Multi-Surface Rubber Brushes with Power Boost |
| Navigation | PrecisionVision Navigation | iAdapt® 3.0 with PerfectEdge® Technology |
| Battery Life | ~75 minutes | ~120 minutes |
| Recharge and Resume | Yes | Yes |
| Smart Features | AI Obstacle Avoidance, App Control | App Control, PerfectEdge® Cleaning |
| Clean Base™ | Included | Included |
| Price | Premium | Premium |
Design and Build Quality
Roomba j7+: Compact and Intelligent
The Roomba j7+ features a slim, modern design with a brushed metal finish. Its PrecisionVision camera is integrated seamlessly, giving it a sleek aesthetic while enabling smart obstacle avoidance. The low profile allows it to navigate under furniture with ease.
Roomba S9+: Bold and Powerful
The S9+ departs from iRobot’s traditional round design with a unique D-shape, optimizing edge and corner cleaning. It’s slightly bulkier but feels robust, exuding power with its elegant black and copper accents.
| Design Feature | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Aesthetic | Sleek and compact | Bold and premium |
| Build Quality | Durable and lightweight | Robust and high-end |
| Special Design | PrecisionVision Camera | D-Shape with PerfectEdge® Technology |
Cleaning Performance
Suction Power and Efficiency
The S9+ delivers 40 times the suction power of iRobot’s base models, making it unparalleled for deep cleaning high-pile carpets and heavy debris. The j7+, with its 10x suction power, performs admirably on most surfaces but is optimized for efficiency and adaptability in cluttered spaces.
| Cleaning Aspect | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Suction Power | Excellent (10x Gen 1) | Outstanding (40x Gen 1) |
| Performance on Carpets | Great for low/medium-pile | Exceptional, especially high-pile |
| Pet Hair | Excellent | Exceptional |
Brush and Edge Cleaning
- j7+: The dual multi-surface rubber brushes work effectively across hardwood, tile, and carpets, handling pet hair without tangling.
- S9+: The Power Boost mode enhances cleaning on carpets, while the PerfectEdge® Technology targets edges and corners with precision.
Navigation and Mapping
Roomba j7+: AI-Driven Intelligence
The j7+ excels in AI-powered obstacle avoidance, thanks to its PrecisionVision Navigation. It can identify and avoid cords, shoes, and pet waste, making it perfect for homes with kids and pets. Its P.O.O.P. (Pet Owner Official Promise) ensures stress-free cleaning.
Roomba S9+: PerfectEdge® Technology
The S9+ employs iAdapt® 3.0 Navigation, combined with advanced mapping and edge-detection sensors. It offers meticulous cleaning of edges, baseboards, and corners but lacks the advanced object recognition of the j7+.
| Navigation Feature | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Obstacle Avoidance | Advanced AI-powered | Basic |
| Mapping Capability | Smart Mapping with No-Go Zones | Smart Mapping with No-Go Zones |
| Edge Cleaning | Standard | PerfectEdge® Technology |
Smart Features and Connectivity
Both models offer Wi-Fi connectivity, allowing full control via the iRobot Home app, including scheduling, mapping, and customized cleaning. They are also compatible with Amazon Alexa and Google Assistant for voice commands.
| Smart Feature | Roomba j7+ | Roomba S9+ |
|---|---|---|
| App Control | Yes | Yes |
| Voice Commands | Alexa/Google Assistant | Alexa/Google Assistant |
| AI Features | PrecisionVision Navigation | N/A |
Maintenance and Clean Base™
Both models come with the Clean Base™ Automatic Dirt Disposal, allowing for hands-free operation for up to 60 days. This feature is a game-changer for busy households, eliminating the need for frequent emptying.
| Maintenance Aspect | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Clean Base™ | Included | Included |
| Dustbin Size | Medium | Large |
Battery Life and Runtime
The S9+ offers a longer runtime of up to 120 minutes, making it ideal for larger homes. The j7+ runs for ~75 minutes, sufficient for small to medium-sized spaces.
| Battery Feature | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Runtime | ~75 minutes | ~120 minutes |
| Recharge and Resume | Yes | Yes |
Price and Value
| Aspect | Roomba j7+ | Roomba S9+ |
|---|---|---|
| Price Range | Premium | Ultra-Premium |
| Best For | Homes with pets, clutter, obstacles | Large homes, deep cleaning, edges |
The S9+ justifies its higher price with unparalleled power and edge-cleaning capabilities, while the j7+ offers exceptional value for households with frequent obstacles and pet messes.
Final Verdict: Roomba j7+ or S9+?
- Choose the Roomba j7+ if your home has pets, clutter, or frequent obstacles. Its AI-driven obstacle avoidance and smart navigation make it the best choice for dynamic environments.
- Choose the Roomba S9+ if you have a larger home or need powerful cleaning for high-pile carpets and edges. Its superior suction, extended runtime, and PerfectEdge® technology make it ideal for rigorous cleaning demands.
Both models represent the pinnacle of iRobot’s technology, but your decision should hinge on your household’s specific needs. The j7+ emphasizes intelligence and adaptability, while the S9+ delivers raw power and thorough cleaning.