
WalkingPad X21 Review: The Folding Treadmill That Actually Disappears
An honest WalkingPad X21 review covering the double-fold design, 12km/h top speed, 110kg weight limit, belt size and whether it is worth £600 for a small UK home.
By Jacob Chambers, Founder & Lead Reviewer · Updated 23 July 2026
We may earn a commission from qualifying purchases made through links on this page, at no extra cost to you. This never affects our ratings.


The Toputure 6-in-1 folding treadmill has quietly become one of Amazon UK's most-reviewed treadmills, sitting near £400 with a 4.8-star average across hundreds of ratings. That combination, a low price and an unusually high score, always deserves a closer look, because it usually means either a genuine bargain or a machine reviewed mostly by people using it for gentle walking. Having weighed the specs against how these treadmills actually get used, the answer here leans toward bargain, with clear caveats. This is a walker's and beginner runner's treadmill that happens to offer a proper incline, not a running machine pretending to be affordable.
The "6-in-1" name covers the trick that sells it: it works as a flat walking pad you can shove under a desk, tilts to a 12% incline for harder cardio, reaches 16km/h for jogging and beginner running, folds away, pipes music through a Bluetooth speaker, and logs sessions to an app. The 2.5HP motor and 16km/h ceiling are the honest limits. They are plenty for walking, incline work and steady jogging, and they are below what a committed daily runner needs. Know which of those you are, and the buying decision makes itself.
How we review
This review is based on Toputure's published specifications, the pattern of verified owner reviews on Amazon UK, and how folding treadmills at this spec perform in practice. We have not run a long-term test of this exact unit, so we report the consistent findings rather than a single impression, and we are upfront about the motor and speed limits that the star rating alone will not tell you.
This treadmill suits the person who mostly wants to walk, walk on an incline and occasionally jog, in a home where a full-size running machine simply will not fit. Walking and gentle running are among the most accessible ways to hit the NHS target of 150 minutes of moderate activity a week (NHS physical activity guidelines), and having a treadmill in the spare room removes the weather and daylight excuses that kill most walking habits. If you are starting from scratch, the machine pairs well with a structured plan like the NHS Couch to 5K, which builds absolute beginners up to a 5km run over about nine weeks (NHS Couch to 5K). If you already run fast or long most days, look higher up the range; our best treadmills for home use guide covers stronger motors.
The 12% incline is what lifts this above the pile of flat walking pads. Tilting the deck turns an easy stroll into a session that gets your heart rate up and loads the calves, glutes and hamstrings, so you burn more in the same time without running fast enough to hammer your knees. For anyone rebuilding fitness, carrying extra weight, or protecting sore joints, incline walking is one of the smartest low-impact tools going, and it is the feature I would actually use most on this machine.
Running is where you meet the ceiling. At 16km/h the top speed is roughly a six-minute-mile pace, fine for jogging and beginner intervals, and the 2.5HP motor is comfortable at walking and light jogging loads. Push it with fast, heavy daily running and you are working the motor and belt harder than they are built for, which is how budget treadmills end up with worn belts and tired motors. Match your use to the spec and it lasts; treat it as a marathon trainer and it will not.
| Type | Folding treadmill and under-desk walking pad |
|---|---|
| Top speed | 16 km/h (approx 10 mph) |
| Incline | Up to 12% |
| Motor | 2.5 HP |
| Display | Dual LED screen |
| Connectivity | Fitness app, Bluetooth speaker |
| Tracking | Heart-rate monitoring |
| Storage | Folds flat, fits under a desk |
Near £400, the Toputure gives you an incline, a jog-capable top speed, app and audio features and a fold-flat design that a sub-£200 walking pad cannot match, while costing far less than a JLL or NordicTrack running machine. That is the sweet spot it occupies, and the enormous, high review score tells you a lot of owners are getting exactly what they wanted from it. The trap is expecting it to be a running treadmill in disguise. It is not, and the ones who rate it lowest are almost always the ones who tried to run hard on it every day.
If it fits your training, it is one of the best-value home treadmills on Amazon UK right now. For alternatives at other budgets and use cases, compare our best treadmill under £500 picks, our best incline treadmill UK guide and the sturdier JLL S400 treadmill review. If you only ever plan to walk, a dedicated walking pad may be all you need.
It is good for walking, brisk incline work and steady jogging, and fine for beginner running up to its 16km/h ceiling. It is not built for fast or long daily running: the 2.5HP motor and 16km/h top speed sit below what a dedicated running machine offers. As a do-everything home treadmill for walkers and new runners, though, it punches above its price.
It reaches a 12% incline, which is a genuinely useful gradient. Incline walking raises your heart rate and works the calves, glutes and hamstrings far more than flat walking, so it is one of the best features here for burning more in less time without pounding your joints at speed.
Yes. It folds down for storage and, in walking-pad mode, is low enough to slide under a desk or bed, which is the point of the 6-in-1 design. It suits flats and spare rooms where a full-size running machine would never fit.
The top speed is 16km/h, which is a shade under 10mph, or roughly a 6-minute-mile pace. That covers walking, jogging and beginner running comfortably. Faster runners chasing sprint intervals will hit the ceiling and should look at a higher-spec running treadmill.
Yes, it connects to a fitness app and has a Bluetooth speaker and heart-rate monitoring, alongside its dual LED display. The app is a convenience for tracking sessions rather than a full coached platform, so judge the machine on the hardware first.

An honest WalkingPad X21 review covering the double-fold design, 12km/h top speed, 110kg weight limit, belt size and whether it is worth £600 for a small UK home.

Looking for the best budget treadmill in the UK? We compared 8 affordable folding, walking and running treadmills under £250 to find the best value picks.

The best fold flat treadmills in the UK, compared. Our top picks for space-saving folding treadmills that store under a bed or sofa, from budget to premium.

The best home treadmill for walking, ranked. Compare 5 folding and manual walking treadmills on motor, incline, belt size and price, plus a buying guide.
Best Exercise is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk. As an Amazon Associate we earn from qualifying purchases. This comes at no extra cost to you and never influences our independent reviews or rankings.