iRobot Roomba S9 Plus Review – Latest Robot vacuum Right Now


The iRobot Roomba S9 Plus the latest robot vacuum addresses several long-standing issues that have troubled robot vacuums, such as self-emptying, allergen capture, corner cleaning, and customizable vacuuming via a smartphone app. While it comes with a high price tag, the expense may be justifiable if you prioritize immaculately clean floors with minimal effort and mess on your end.

What is iRobot Roomba S9 Plus?

The Roomba S9 Plus, iRobot’s latest robot vacuum, offers a significant upgrade from the original model. Its self-emptying capability, efficient allergen capture, advanced mapping system, and compatibility with the Braava jet m6 robot mop stand out.

What is iRobot Roomba S9 Plus?

The iRobot Roomba S9 Plus the latest robot vacuum’s powerful cleaning system, including a 3D sensor and wider brushes, ensures thorough cleaning, particularly on hard floors. While it comes with a higher price tag, its impressive features and cleaning performance make it a worthwhile investment, especially for those seeking a hands-off vacuuming solution. Keep an eye out for potential discounts during Roomba Black Friday sales.

iRobot Roomba S9 Plus price and availability

  • List price: $1,099.99 / £1,499.99 / AU$2,899

The iRobot Roomba S9 Plus, also known as the Roomba S9 Plus Robot Vacuum in Australia, is available worldwide on iRobot’s website and Amazon. It carries a price tag of $1,099.99 in the US, £1,499.99 in the UK, and AU$2,899 in Australia. Additionally, it can be bundled with the Braava jet m6 Robot Mop for $1,349.99/£1,999.99/U$3,698. In the US, a bundle option includes the Braava jet m6 Robot Mop and iRobot H1 Handheld Vacuum for $1,474.98.

Although the iRobot Roomba S9 Plus the latest robot vacuum is more expensive than similar models, it offers the brand’s most thorough cleaning, up to 40 times the suction power of previous Roomba vacuums. It also boasts a more precise room mapping system, ensuring efficient cleaning without wasting time on already cleaned areas.

For replacement dirt disposal bags, the cost is $19.99 for a pack of three in the US, £21.95 for the UK, and AU$59 for Australia.

iRobot Roomba S9 Plus Design.

  • Self-emptying bin
  • 30% wider rubber brushes
  • Convenient control buttons on top

Despite its visual resemblance to previous Roomba models, the Roomba S9 Plus the latest robot vacuum Plus incorporates numerous improvements. Notably, it features wider Dual Rubber Brushes than the Roomba 600 series and a brush equipped with five angled arms for practical corner and wall cleaning. The top of the device houses three buttons for convenient control in the absence of a mobile device: one for starting and stopping cleaning, one for spot cleaning, and one for sending it back to the charging station.

iRobot Roomba S9 Plus Design.

Weighing 8.15lb (3.7 kg), the Roomba S9 Plus the latest robot vacuum Plus is relatively heavy to carry from room to room, but its size is manageable. Its height of 3.5 inches (9cm) can easily fit under most beds, although it might not slide underneath sure sofas due to its size. The vacuum has an average width of 12.25 inches (31 cm), but the charging station may pose space constraints. Measuring 19 inches (48 cm) in height and 12.2 inches (ca. 31 cm) in width, it requires a substantial amount of wall space, particularly when considering the recommended clearance of 1.5ft (ca. 46 cm) on either side.

The setup process is relatively straightforward as it is carried out through the mobile app, although waiting for the device to map your home as the initial step can be frustrating. The package includes an extra filter, a corner brush, and a couple of dirt disposal bags. Notably, the dust disposal bags are designed to ensure that you never have to come into contact with the dust from your floors, as each bag seals upon removal from the charging station.

iRobot Roomba S9 Plus Performance.

  • Good dust pick-up on carpets and hard floors
  • Power Boost increases suction for carpets
  • Noisy when emptying

The iRobot Roomba S9 Plus showcased impressive cleaning efficiency by effectively sucking up fine dust, biscuit crumbs, and oats on hard floors. However, it left some fine dust on medium-pile carpets, even when using the Quiet Clean and Detailed Clean settings. It’s worth noting that even a regular vacuum cleaner struggled to pick up the embedded fine flour, suggesting it was difficult to remove after being rolled over a few times.

iRobot Roomba S9 Plus Performance.

Overall, the iRobot Roomba S9 Plus the latest robot vacuum impressed with its ability to reach room edges, whisk away dust, and navigate furniture effectively. The Power Boost feature automatically increases suction when detecting carpets, enhancing its cleaning performance.

In terms of noise, the Roomba S9 Plus the latest robot vacuum is relatively loud compared to other robot vacuums. It registered 61dB on the carpet and 64dB on hard floors when using the Detailed Clean mode, equivalent to the sound of office conversation. While this noise level is generally acceptable, the automatic emptying feature produced an average noise level of 77.5dB, comparable to the noise experienced 25 ft (ca. 8 m) away from a vehicle traveling at 65mph (ca. 105 km/h). It may be wise to place the charging station away from social areas due to the noise generated during emptying.

It is cleaning up after vacuuming was effortless, thanks to the Roomba S9 Plus automatically emptying into the charging station. However, the dust bag needs replacement after approximately 30 empties, which translates to a monthly or bi-monthly interval. The filter requires frequent maintenance, with a suggested weekly shake to clean (or twice a week if pets are in the household). The filter is located within the robot’s dust box, so removing it may get a bit messy, but it’s essential to maintain the filter’s anti-allergen properties.

iRobot Roomba S9 Plus App.

  • Connects via Wi-Fi
  • Alexa and Google Assistant compatible
  • Find your Roomba feature

Connecting the iRobot Roomba S9 Plus the latest robot vacuum to Wi-Fi using the app was relatively straightforward, although it required some repositioning before successfully connecting. The app is user-friendly, providing a history of previous cleaning sessions, the option to save a favorite cleaning routine, detailed room mapping (including the ability to name and divide spaces), and a section for scheduling. A thoughtful feature allows you to assign a name to your vacuum cleaner, particularly useful if you have multiple devices on different floors.

iRobot Roomba S9 Plus App.

Adjusting the suction level took some time, as I tucked away this option in the settings rather than being easily accessible from the main screen. Voice integration with platforms like Alexa and Google Home is also not immediately apparent, as it is within the Smart Home section. However, once linked, you can issue voice commands to vacuum, clean specific rooms, or return to the charging dock.

One particularly useful feature is the ability to locate the Roomba by tapping the app, causing the vacuum to emit a sound. This proved handy when the robot vacuum got stuck under a bed and needed help.

iRobot Roomba S9 Plus Battery life.

The iRobot Roomba S9 Plus the latest robot vacuum features an “intelligent recharge” function, meaning it will recharge for the time to continue cleaning. The exact battery life between charges is not specified by iRobot, likely because the Roomba S9 Plus will autonomously return to its charging station if the battery is running low and recharging enough to complete the cleaning task.

During a first floor cleaning session, which lasted just under an hour, the battery level displayed on the app appeared to be around half-full. However, it would have been preferable if the indicator showed the battery percentage rather than requiring users to estimate the remaining charge. The Roomba S9 Plus the latest robot vacuum takes approximately three hours to recharge from a flat battery fully.


  • Accurate room mapping system
  • Easy to operate
  • Efficient corner cleaning


  • Expensive
  • Better on hard floors than carpet

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