Roborock Qrevo vs. iRobot Roomba j7

By Drew Nolan

At a glance

Choosing between the Roborock Qrevo series and the iRobot Roomba j7 series comes down to a fundamental question: What does your floor plan look like? If your home is mostly hard flooring that requires frequent, heavy-duty mopping, the Roborock Qrevo's spinning pads and fully automated docks are tough to beat. If your home is primarily carpeted and prone to scattered cords, pet toys, or pet waste, the Roomba j7's patented dual rubber brushes and superior front-facing camera navigation make it the safer, more effective choice.

To help you decide, we have broken down the key differences between these two popular robot vacuum lines based on independent testing and official specifications.

First, the j7 situation

Before diving into the performance metrics, it is important to understand where these models sit in the market. The Roomba j7+ and its mopping sibling, the Roomba Combo j7+, have been staples of iRobot's premium lineup. However, in March 2025, iRobot announced a refreshed portfolio, replacing older models with new options like the Roomba 105, 205, and the Plus 505 PCMag. While you can still find the j7 series at many retailers, you may also want to cross-shop it with newer models like the Search Amazon for iRobot Roomba Plus 505 Combo, or compare high-end alternatives in our Roomba j9+ vs. Dreame X40 Ultra comparison.

Mopping decides it for hard floors

If you have hard floors, the mopping mechanisms of these two brands could not be more different.

The Roborock Qrevo Approach

The original Roborock Qrevo utilizes two spinning mop pads Vacuum Wars. In testing by Vacuum Wars, the Qrevo performed well overall as a vacuum and mop combo. When the Qrevo detects carpet, it automatically lifts its mop pads by 7mm, allowing it to vacuum carpets and mop hard floors in a single run without wetting your rugs Vacuum Wars. Newer iterations, such as the Roborock Qrevo Curv 2 Flow, feature an extendable roller mop that reaches closer to walls and tight gaps Tom's Guide.

The Roomba Combo j7+ Approach

The Roomba Combo j7+ uses a unique retractable mopping pad that sits on top of the robot Vacuum Wars. When it senses hard floors, it swings the pad down underneath itself; when it approaches carpet, it retracts the pad completely back to the top of the unit Vacuum Wars. While this completely guarantees your carpets stay dry, independent testing by Vacuum Wars noted that it has some areas for improvement when handling certain tough stains Vacuum Wars.

Obstacle avoidance: the Roomba's one enduring edge

If you have pets or a busy household with cords and toys left on the floor, obstacle avoidance is critical. This is where iRobot holds a distinct advantage.

• Roomba j7 series: Equipped with Precision Vision Navigation, the j7 uses a front-mounted camera and LED light to identify and avoid specific objects Vacuum Wars. It successfully avoids cords, socks, shoes, and even pet waste, backed by iRobot's official pet waste avoidance guarantee Vacuum Wars.
• Roborock Qrevo: The original Qrevo uses Reactive Tech structured light for obstacle avoidance Vacuum Wars. While it maps rooms efficiently using its top-mounted LiDAR, Vacuum Wars rated its obstacle avoidance lower than the Roomba's, noting it has some shortcomings in obstacle avoidance Vacuum Wars.

For pure carpet cleaning, Roomba also wins on hardware. Its patented dual rubber brush rolls grab hair and deep-seated dirt from carpet fibers exceptionally well, earning the Combo j7+ a high score of 91 out of 100 in Vacuum Wars' deep clean tests Vacuum Wars.

Which Qrevo?

If you decide on Roborock, keep in mind that the "Qrevo" name covers several tiers. The original Qrevo offers 5,500Pa of suction and a highly capable Multifunctional Dock that washes and dries the mop pads Vacuum Wars.

If you want maximum performance, the newer Search Amazon for Roborock Qrevo steps up suction to an immense 20,000Pa and adds an extendable roller mop, though reviewer Matt Ng at Tom's Guide noted that it lacks a built-in detergent tank and requires manual setting tweaks out of the box Tom's Guide.

Count the second-year costs

Before buying, consider the ongoing maintenance costs. Both brands offer auto-empty stations, but their consumable needs differ:

Quick answers

Does the Roomba j7+ mop?

The standard Roomba j7+ does not mop; it is a vacuum-only model. To get mopping capabilities, you must choose the Roomba Combo j7+, which features a retractable mopping pad on top of the robot Vacuum Wars.

Can the Roborock Qrevo clean carpets without getting them wet?

Yes. The Roborock Qrevo automatically detects carpet and lifts its dual spinning mop pads by 7mm, allowing it to vacuum your rugs safely while keeping the wet pads off the carpet fibers Vacuum Wars.

Which robot is better for homes with lots of loose cords?

The iRobot Roomba j7 series is significantly better for loose cords. Its Precision Vision camera-based navigation is specifically trained to recognize and steer clear of cords, socks, and pet waste, whereas Vacuum Wars noted the Qrevo has some shortcomings in obstacle avoidance Vacuum Wars Vacuum Wars.

More comparisons

• Roomba j9+ vs Dreame X40 Ultra
• Dyson vs Shark Cordless