Every few months, it appears that a new robot vacuum introduces an innovative solution to a persistent problem, which then becomes a standard feature in high-end models before eventually making its way to more affordable options. The latest example is Roborock’s Qrevo Edge, the first vacuum capable of lifting its chassis and deploying a retractable wheel to navigate over thresholds up to four centimeters high.
However, the downside of this continuous innovation is that these new features quickly become commonplace. At CES this month, we witnessed a model from Dreame that can handle six centimeters using a pair of rotating legs, along with future designs featuring robotic arms for debris removal. For now, though, the $2800 Edge stands out with its unique capability, in addition to being a competent high-end vacuum.
First and foremost, does its additional foot-wheel effectively lift the robot over floor transitions? In my home, the carpeted lounge is precisely three centimeters lower than the tiled kitchen to the west and the entryway to the east. This height difference often trips first-time visitors and poses a challenge for most robot vacuums, which can fall into the lounge but struggle to climb out.
Given the layout, at least three robots would be necessary to clean the entire house without the need for manual lifting, as they cannot be trained to navigate makeshift ramps, and I wouldn’t install anything permanent in a rental property. Therefore, I was eager to see how the Qrevo Edge would perform during its initial mapping run. It mapped the area quickly and accurately, thanks to its elevated Lidar unit, and when it reached the lounge, it lifted itself on its wheel and smoothly transitioned into the kitchen. I was impressed.
However, I’ve since observed that it doesn’t always tackle the climb with confidence. Occasionally, it fails to ascend and retreats, pacing for a moment before attempting again. At times, it approaches the transition at an angle for no apparent reason, struggling over it like a middle-aged man regretting his decision to climb a fence. Nevertheless, it has never become stuck or given up; it perseveres.
With my three-centimeter transitions, I’m pushing the Qrevo Edge to its limits, and it’s possible it would navigate slightly lower bumps with ease. The four-centimeter maximum jump is only achievable for double-layer thresholds.
Even if your floors are completely flat, this robot has numerous advantages. Its asymmetrical sweeping arm and extendable mop, while somewhat unconventional in appearance, effectively clear crumbs from edges and reach corners. It provides substantial suction without being overly loud compared to other vacuums. It can mop and vacuum simultaneously and will return to mop again if it detects a particularly dirty area.
Additionally, it features a clever split roller design that Roborock claims prevents hair from wrapping around the components, a common issue with many other robot vacuums.
