Deebot N20
A robot that vacuums and mops with a flat pad. Its dock charges it and does nothing else.
Vacuum and mopPrice band: Under $500
Our take
Up to 300 minutes on a charge for under $500. The dock only charges the robot, so it doesn't empty the 400 ml bin for you.
By Emma Walsh
The Deebot N20 is for the person who’d rather tip out a bin than pay for a dock that does it. Its dock only charges the robot and measures 21.8 x 7.3 x 11.1 cm. The robot costs under $500.
The bin makes that bargain easier to live with. At 400 ml it’s twice the size of the one in the Roborock Q7T+, a robot from the same band whose dock does the emptying.
Then there’s stamina. A 5,200 mAh battery keeps the N20 going for as long as 300 minutes, and one charge is good for up to 550 square metres, which is more floor than most of us own. Refilling that battery takes about 6.5 hours, so if it does run flat, the rest of the job waits.
Its vacuum pulls 8,000 Pa through a bristle roller, with the bristles set at an angle and comb teeth alongside. It can tell when it’s on carpet, it maps with a laser, and it runs at 65 dBA.
The mop is the basic kind, a flat pad with a 220 ml water tank. It stays down on carpet and doesn’t extend toward the edges, so we’d treat it as a wipe for open hard floor and buy this robot for its vacuuming.
It stands 9.6 cm tall, gets over a 2 cm sill with the mop attached and weighs 4.2 kg. Google Assistant and Alexa both work with it.
If emptying a bin is the chore you know you’ll skip, the Q7T+ is the better buy, with its self-emptying dock and 10,000 Pa of suction. Otherwise the N20 is our budget pick in the guide to robots in the under-$500 band. It covers a lot of floor for not much money, and all it asks is a regular trip to the kitchen bin.
Against the other 40 robots
Where it sits in our list
Suction8,000 Pa
4,000 PaFurther right pulls harder.36,000 Pa
Height9.6 cm
7.2 cmFurther left fits under lower furniture.12 cm
Step it climbs2 cm
2 cmFurther right gets over taller door sills.4.8 cm
Checked 11 November 2026
The spec sheet
Each number shows where we read it. Open a row to see the words it came from. "Not stated" means we couldn't find the number on the brand's page or the listing.
What the dock does
- Empties the binNo
- Washes the mopNo
- Dries the mopNo
- Refills the waterNo
- Adds detergentNo
What it doesVacuums and mopsThe brand's own page
What the page says"Cleaning Mode Vacuum/ Vacuum and Mop"
Suction8,000 PaThe brand's own page
The most it can pull, on its strongest setting.
What the page says"Vacuum Power Adjustment 8000Pa"
Finds its way byLaser (LiDAR)The brand's own page
What the page says"utilizing laser radar scanning for precise navigation"
Spots clutter withNot stated
A front sensor for cables, socks and toys.
We leave a blank where we can't confirm a number.
MopFlat padThe brand's own page
What the page says"its composite material mopping pad locks in dirt and the 220ml water tank ensures continuous wetness"
Mop lifts on carpetNoThe brand's own page
What the page says"Automatic mop lifting (mm) No"
Climbs a step of2 cmThe brand's own page
One step, like a door sill.
What the page says"(With mop)barrier crossing ability (mm) 20"
Height9.6 cmThe brand's own page
Check it against the gap under your furniture.
What the page says"Size of Robot (φxH,mm) 353*351*96"
Battery5,200 mAhThe brand's own page
What the page says"Battery Specifications (Type, mAh) Li-ion，5200"
Longest run300 minutesThe brand's own page
The brand's longest figure, on a gentle setting.
What the page says"Working Time (min) 170~300"
Bin in the robot400 mlThe brand's own page
What the page says"Dust Bin Capacity (ml) 400"
Dust bag in the dockNo bag
More details
Main brushBristle roller with angled bristles and comb teethThe brand's own page
What the page says"a newly designed roller brush with 21° flat and outward-rotating angled bristles, along with dual comb teeth arrays"
Mop reaches edgesNo: the mop pad does not extendThe brand's own page
What the page says"Mop expansion No"
Water tank (robot)220 mlThe brand's own page
What the page says"the 220ml water tank ensures continuous wetness"
Carpet handlingDetects carpet with a sensorThe brand's own page
What the page says"Carpet Detection Yes"
Noise65 dBAThe brand's own page
What the page says"Noise Value (dBA ) 65"
WeightRobot 4.2 kgThe brand's own page
What the page says"Net weight of Robot (KG) 4.2"
Dock sizeCharging dock only: 218 x 73 x 111 mmThe brand's own page
What the page says"Size of Station (φxH,mm) 218*73*111"
App and voiceWorks with Google Assistant and AlexaThe brand's own page
What the page says"Supports hands-free control via Google Assistant or Alexa"
Charging timeAbout 6.5 hoursThe brand's own page
What the page says"Charging Time (H) About 6.5h"
Cleaning area per chargeUp to 550 square metresThe brand's own page
What the page says"covering up to 550 square meters on a single charge"
Obstacle sensorThree pairs of infrared emitters and receiversThe brand's own page
What the page says"With three sets of infrared transmitter and receiver pairs"
Buying guides
