The SwitchBot K11+ Pro is 24.8 cm across, roughly the footprint of a sheet of A4 paper, and it still comes with a dock that empties its bin into a bag. SwitchBot launched it on September 24, 2026 at $399.99, with 12,000 Pa of suction, twice the figure of the K11+ it builds on. Its US store was already selling it for $239.99 in launch week. The narrow body is the change that matters for small flats and rooms crowded with chair legs. Height is where buyers should slow down. At 9.2 cm, the SwitchBot K11+ Pro stands only about half a centimeter lower than a typical robot vacuum, so furniture that stops a full-size robot will usually stop this one too.
What 24.8 cm buys, and what 9.2 cm does not
A small round body turns in tight spaces. SwitchBot pitches it at the gaps between chair legs, the last few centimeters along walls and the corners a wide robot leaves behind, and those are the places where a narrow machine has a mechanical advantage. It weighs about 2.3 kg and stores up to five maps, so carrying it upstairs for a second floor is realistic.
Height decides something else: what the robot can clean under. A lower robot such as the eufy Auto-Empty C10 stands 7.2 cm tall, a full 2 cm below the SwitchBot.
That gap is the whole decision for some homes. Measure the clearance under your sofa and bed before buying. Anything under about 9.5 cm, allowing a few millimeters of margin, rules out the SwitchBot and leaves the eufy in play. The eufy pays for its low body elsewhere, with 4,000 Pa of suction, a single map and no mop.
Twice the suction, and no runtime figure
SwitchBot credits a new fan for the higher figure and says the robot raises power automatically on carpet. Suction figures in pascals are peak numbers from the maker, measured without a common industry test, so they rank robots within one brand better than across brands. The doubling over the K11+ is still a meaningful internal comparison. In its quiet mode the robot runs at about 45 dB, according to SwitchBot.
For pet homes, the brushes matter more than the fan. The main brush is all rubber and the side brush has two arms, both chosen to limit hair wrapping.
What SwitchBot has not published is a runtime. The US product page lists a 3,500 mAh battery but no rated runtime. The store page does say the robot returns to its dock when power runs low and then resumes the unfinished job, so a larger flat still gets cleaned, in two sessions if needed. A stronger fan usually draws more power, and without a rated runtime there is no way to judge how often that second session will happen.
The mop is a dry cloth
The K11+ Pro takes disposable mop cloths for daily dry wiping. SwitchBot describes them as picking up fine dust and light footprints, and there is no water tank in its description. Treat it as a vacuum with a dusting pad. Sticky kitchen floors need a robot that carries water and washes its own pads, and those come with much larger docks.
The dock and its bag
After each run the dock pulls the debris into a 4 L bag. SwitchBot rates that at up to 90 days between changes, and qualifies it on its own page: the interval depends on the size of the home, how much debris there is and how often the robot runs. A household with a shedding dog will change bags sooner than the headline suggests.
Bags are a running cost that bagless docks avoid, at the price of emptying a bin by hand. Our guide to bagless auto-empty stations covers that trade-off in detail.
Smart home support and the price outside the US
The robot connects over 2.4 GHz Wi-Fi, with Bluetooth used for setup. It supports Matter over Wi-Fi, which is how it joins Apple Home, and SwitchBot also lists Alexa, Google Home and Home Assistant. That makes it one of the easier robots to trigger from an automation, such as starting a clean when the last phone leaves home.
SwitchBot sells it in black and white through its own store and its Amazon store. The list price is the same number in three currencies: 399.99 dollars, pounds and euros, and 499.99 Canadian dollars. At list, buyers in the UK and the euro area pay noticeably more than buyers in the US for the same robot.
The launch discount changes the picture in the US. On September 27 SwitchBot’s store showed the K11+ Pro at $239.99, 40 percent off, with no end date given on the page. On October 9, 2026, the store listed it at $399.99.
Who it fits
At $239.99 it suits a small flat with hard floors, rugs and a lot of chair legs, where a wide robot spends its time bumping around furniture. It is the wrong robot for low sofas and for anyone who wants real mopping.
Paying the full $399.99 makes the missing runtime harder to accept. That figure is the first thing to look for on SwitchBot’s spec page before paying list price.
