A Budget Robot Vacuum After Three Months of Daily Use

A budget robot vacuum looks like an easy win on a product page: 4000Pa of suction, smart mapping, app control, all for under £200. The problem is that the spec sheet tells you almost nothing about whether it will still be running every day in month three or sitting under the sofa with a tangled brush.

I ran a lidar-equipped budget robot vacuum, bought for £179 in July, every weekday in a two-bedroom flat for three months. The flat has laminate in the hall and kitchen, a short-pile rug in the living room, a long-haired cat and a teenager who leaves charging cables on the floor. Here is what held up, what did not, and what I would check before buying another one.

What a budget robot vacuum gets you in 2026

The price bracket of £150 to £250 has changed a lot in the last two years. Features that used to be reserved for models costing £500 or more are now standard at the lower end:

Lidar navigation that builds a floor map on the first run
Room naming and no-go zones in the app
Scheduled cleaning per room
A 2.4GHz Wi-Fi connection for remote control
A basic mopping pad that trails behind the brush

What you generally do not get at this price is a self-emptying base, obstacle recognition by camera, or a mop that lifts itself when it reaches carpet. Those three missing features turned out to shape most of my experience.

Three months of daily use, by the numbers

I logged each run from the app and noted every time I had to step in. These are the figures for 64 scheduled runs across roughly 13 weeks:

Measure	Result
Average run time for about 55 square metres	47 minutes
Runs completed without help	51 of 64 (80 percent)
Runs stopped by a cable or sock	9
Runs where it got stuck on the rug tassels	4
Dustbin capacity before it needed emptying	About 2 runs with the cat moulting
Battery left after a full run	38 to 45 percent
Main brush hair removal	Every 4 to 5 days

An 80 percent success rate sounds disappointing until you look at why the other runs failed. Every single one of the 13 stopped runs came down to something on the floor, not to the robot getting lost. The mapping was accurate from day one, and it never once tried to clean the wrong room.

Where it impressed me

Navigation. The lidar map was accurate to within a few centimetres and survived furniture being moved twice. Being able to schedule the kitchen daily and the bedrooms twice a week did more for cleanliness than raw suction.

Hard floor pickup. On laminate it collected crumbs, grit and cat litter tracked from the tray as well as I would with a stick vacuum. The side brush reached into corners about as well as any round robot can, which is to say not perfectly.

Noise. On the standard power setting it measured about 62dB from a metre away on my phone meter. That is quiet enough to run during a video call in the next room with the door shut.

Where it fell short

Hair on the brush. Long cat hair wrapped around the bristle brush roll every few days. Cutting it free with scissors takes about five minutes. Models with a rubber roller instead of bristles cope far better with long hair, and I would make that a must-have next time.

The small bin. At around 400ml, the dustbin filled in two runs during the cat's spring and autumn moults. Without a self-emptying base, that meant tipping it out every other day.

Mopping. The trailing pad does little more than wipe the surface with damp cloth. It will not lift a dried coffee drip. I gave up using it after week three, and I would not pay extra for it.

The app. It needs a 2.4GHz network and refused to pair until I separated the bands on my router. If you have a mesh system that merges both bands, read the notes in mesh Wi-Fi vs router before you start, because this is a common setup headache.

Why suction numbers are the wrong thing to compare

Almost every listing leads with a suction figure in pascals, and budget models now quote 4000Pa, 5000Pa or more. My advice is to mostly ignore it. The figure is measured at the motor in ideal conditions, not at the floor through a brush roll and a narrow inlet, and manufacturers do not test it the same way.

In my flat, switching from the standard setting to the maximum one made no visible difference on laminate and only a small one on the rug, while cutting the run time by about a third. What actually decided cleaning results was the brush type, the bin size and how often the robot was stopped by clutter. The same caution applies to plenty of other headline specs, as covered in reading benchmark numbers without being misled.

What to check before you buy one

Brush roll material. Rubber or a rubber and bristle hybrid if you have pets or long hair in the house.
Bin capacity. Aim for 450ml or more if you will empty it by hand.
Height. Measure under your sofa and bed. Lidar turrets add height, and many budget models stand around 9.5cm.
Replacement parts. Check that filters, side brushes and roller are sold separately. A pack of spares should cost under £20.
Floor clutter. Be honest about cables, socks and toys. Without camera obstacle avoidance, a robot will only be as good as your five minute pre-run tidy.

Running costs over three months were small. I replaced one side brush and one filter, about £8 in total, and the battery showed no measurable drop in run time.

The verdict after three months

For a home with mostly hard floors and a household willing to pick things up before a scheduled run, a budget robot vacuum is genuinely useful. It kept the kitchen and hall clean daily in a way I never managed by hand. For a home with deep carpet, a lot of long pet hair and floors that stay cluttered, the savings get eaten by daily brush cleaning and bin emptying, and a mid-range model with a rubber roller and a self-emptying dock is the better spend.

Frequently asked questions

Is a budget robot vacuum worth it?

It is worth it if your floors are mostly hard and fairly clear of clutter. Lidar mapping at this price is now reliable enough for daily scheduled cleaning. If you have a lot of long pet hair or deep carpet, the maintenance may outweigh the saving.

How long does a cheap robot vacuum last?

Most budget models run well for two to three years with routine care. The battery is usually the first part to fade, and replacements typically cost £25 to £40. Changing filters and side brushes on schedule extends the motor's life.

Do robot vacuums work on rugs?

They handle short-pile rugs well and struggle with thick or shaggy ones. Tassels and fringes are a common cause of the robot getting stuck. Setting a no-go zone around a fringed rug avoids most of the trouble.