Review of the Eufy RoboVac 11S Plus Robotic Vacuum (Black)

Who says you can’t get a lot for a little bit of money? The Eufy RoboVac 11S Plus may come at a low price, but don’t let that fool you. The 11S Plus can automatically increase its suction, and the battery provides an impressive runtime. You can choose from multiple cleaning modes, and the dirt box is huge.

Comprehensive Brush Configuration

On the RoboVac 11S Plus, dual triple-propeller spinning sweepers pull in loose dirt. With bristles shaped in a double-helix pattern, the brushroll does a bang-up job of lifting debris. Cleaning the brushroll is easy since no tools are required to remove the guard.



Self-Increasing Suction Technology

Eufy equipped the 11S Plus with Bostic technology, which increases the robot’s suction to a whopping 1,500 pascals. Still, the robo vac manages to stay quiet at around 55 to 65 dB. Manual suction control is available when you need the robot to vacuum medium-pile carpet.

100 Minutes of Runtime

For this particular model, Eufy chose a high-capacity lithium-ion battery. This rechargeable battery not only provides up to 100 minutes of working time but also ensures the suction remains consistent. Thanks to the 11S+ auto-docking feature, you’ll never have to recharge the battery yourself.

Slim in Size

Standing 2.85 inches tall, the 11S Plus is slim enough to fit under low-sitting furniture and clean alongside kick plates. Its treaded wheels are robust, and they can climb thresholds of 0.63 inches without wobbling. Since the robot uses infrared sensors to detect obstacles and drop-offs, it will change its course instead of colliding or falling.

Large-Volume Dirt Bin

To save you time, Eufy put a 0.6-liter dirt bin inside the RoboVac 11S Plus. A release button on the handle makes bin removal a simple task, and the hinged lid on the box prevents dirt from spilling when you empty its contents.

Three Filtration Levels

In a separate compartment on the dirt bin, there is a two-piece filter set. One piece consists of a pre-filter with an absorbent sponge layer. The other piece is a high-performance pleated cartridge, which traps allergens such as dander, dust and pollen.

Five Ways to Vacuum

Eufy programmed the 11S Plus with five behaviors. Auto mode sends the robot on a whole-house cleaning mission. Spot mode spirals the pattern to clean up small messes. Edge mode makes the robot vacuum along walls while single-room mode drives the robot for 30-minute stretches. There’s also a mode that puts the robot on a user-defined reoccurring cleaning schedule.

Remote Control

The tempered-glass top features one mode, which is auto clean. However, all the other functions for the pinstriped robotic vacuum are accessible via the remote control. You can even use the remote to set the current time, which will display on the remote’s digital screen.

An All-Around Winner

It’s practically impossible to find fault with this robotic vacuum cleaner because every feature is well-designed. The automatic suction and brushes combined make the 11S Plus capable enough to vacuum carpets. If you live in a large home, the dirt bin and battery life won’t leave the floors unfinished. Its scratch-resistant tempered-glass cover will keep the robot looking brand new month after month. You can’t go wrong with the Eufy RoboVac 11S Plus.

eufy BoostIQ RoboVac 11S Plus, Upgraded, Super-Thin, 1500Pa Strong Suction, Quiet, Self-Charging Robotic Vacuum (1)


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s9+ 11S MAX 11S (Slim) S5 500
Continuous 100 min 100 min 150 min 110 min
12.2 x 12.2 x 3.5 in 17.8 x 13.7 x 4.8 in 12.8 x 12.8 x 2.9 in 13.8 x 13.7 x 3.8 in 12.9 x 12.9 x 3.1 in
20 pounds 5.73 pounds 5.73 pounds 7 pounds 6.7 ounces