Manual or motorised?

Short answer For almost everyone shopping in the UK today, the answer is motorised, and not because it is better. It is because the cheap flat manual treadmill has very largely left UK retail: searching Argos, JLL Fitness and Amazon UK on 18 September 2026 returned motorised machines and nothing else. Manual is still the right answer if you have no socket where the machine will live, or you specifically want a curved machine for sprint work.

The mechanical difference, which explains everything else

A motorised treadmill drives the belt at a speed you choose. You match it. A manual treadmill has no drive at all: the belt moves because you push backwards against it with each stride. Everything that follows comes from that one difference.

It means a manual belt only moves while you are moving, and stops the instant you do. It means your effort goes into moving the belt as well as yourself, so the same speed feels harder. And it means there is no motor, no control board and no incline motor, which is a real advantage in a machine you want to last.

Two kinds of manual, often confused

Flat manual treadmills are the cheap ones, and they have very largely left UK retail. Searching Argos, JLL Fitness and Amazon UK for a manual treadmill on 18 September 2026 returned motorised machines and nothing else, across all three. One Amazon result was titled "Foldable Manual Treadmill" and turned out on inspection to be a motorised brushless machine; the word manual did not survive contact with the listing. That is our own search on a stated date rather than a published source, so it carries no evidence mark: none of the five describes it.

That is three retail surfaces on one day rather than a census, so we will not say flat manuals do not exist. We will say that if you are shopping for one in the UK today you should expect not to find it, and that a page presenting them as a live budget choice is describing a market that has largely gone.

Curved manual treadmills are a different thing entirely. The deck curves upward at both ends, so your foot placement controls speed naturally and the belt runs on low-friction bearings. If you have read that manual treadmills are good for sprint work, this is the type meant.It is not what the search above found, though: that returned motorised machines and nothing else across all three retailers. The one curved manual we hold a record for, the Taurus Elite Run Curved Treadmill, is listed by Fitshop, which is where we read its specification on 18 September 2026. We hold no price for any machine on this site, curved manuals included, so this page does not tell you what one costs.

Side by side

Half of this table is a definition and the other half is counted. What drives the belt, whether it needs a plug, what sets the speed, what can fail and what makes the noise are what the two words MEAN; they carry no evidence mark because a definition does not need one. Top speed, deck length and machine weight are computed from our records at build time, and each says how many machines it rests on.

The manual column rests on exactly one machine. We hold 1 manual treadmill record, the Taurus Elite Run Curved Treadmill, against 17 motorised ones, so its cells name it rather than generalising: one machine cannot establish what a category is like.

Choose manual if

• You intend to walk, not run.
• There is no socket where the machine will live, or you want it in a garage or garden room without wiring anything.
• You want the fewest possible parts that can fail. No motor is no motor failure.
• You want it to cost nothing to run, which for a treadmill is a small saving rather than a large one. The running cost of a motorised machine is between £14 and £48 a year at half an hour a day, depending on what it draws.
• You are buying a curved manual specifically for sprint or interval work, and you have the budget for one.

Choose motorised if

• You want to run at all. A flat manual will frustrate you.
• You want to hold a set pace, which is the entire point of training on a treadmill rather than outside.
• You want adjustable incline, which is the most useful feature on a home treadmill and is almost never properly adjustable on a manual.
• You want a longer, wider deck. Deck length is what decides whether a machine is runnable for a taller person, and every machine's is on its own page.
• You want programmes, app connectivity or heart-rate features.

What the comparison usually gets wrong

"Manual treadmills give a better workout." They make the same speed feel harder, which is not the same claim. Whether that is better depends entirely on what you are training for, and for steady-state running the inability to hold a set pace is a drawback rather than a feature.

"Manual treadmills are more reliable." Fewer parts is genuinely fewer things to fail, and that much is simple logic. But a cheap manual with poor rollers and bearings can wear faster than a well-built motorised machine, and we have no failure-rate data for either.ENot established, checked 19 Sept 2026

"Manual is the budget option." We cannot tell you whether it still is. We hold no price for any machine on this site, so we have nothing to compare. What we can say is what we found: flat manuals were the cheap ones, and our search of three UK retailers on 18 September 2026 did not turn up a single one. Whether what replaced them costs more is a question we would need prices to answer, and we do not have.

What we have not established

We have not measured calorie burn, belt resistance or failure rates on either type, and we have not tested any machine of either kind. The comparison above is mechanical and holds regardless, but anywhere a number would be more useful than a description, the number is one we do not have. How we review.