Types of Treadmills, Explained

1. What Are the Different Types of Treadmills? The Short Answer

The main types of treadmills are motorized (folding and non-folding), manual (flat and curved), walking pads and under-desk treadmills, incline trainers, and commercial treadmills, with smart, dog and VR treadmills as specialist kinds.The first split is power: a motorized treadmill drives the belt for you at a set speed, while a manual one moves only when you push it. The second is purpose: walking, running, working at a desk, steep hill training, gym-level use, or something more specialised.

For most homes the choice comes down to three types. A folding motorized treadmill suits most walkers and joggers who need to reclaim floor space. Anon-folding motorized treadmill suits regular runners and heavier users who want the most stable deck for the money. A walking pad suits people who only want to walk, often while working, and need something that disappears under furniture.

The specialist types are worth knowing about because they solve problems the mainstream ones do not. A curved manual treadmill is a sprint and interval tool with no plug. An incline trainer climbs far steeper than a standard treadmill. A commercial treadmill is built for hours of use a day. And "smart" describes a feature rather than a format: most of the types above can be bought with or without a connected screen.

2. The Types of Treadmills at a Glance

The table compares the types on the things that separate them most: whether they need power, what they are best at, how much room they take, and what a new one typically costs. The price bands are typical ranges as of October 2026, not quotes.

Two patterns are worth noticing. Price tracks durability and running capability far more than it tracks features — a walking pad and a commercial treadmill differ less in their screens than in their motors, frames and decks. And the cheapest types are cheapest because they do less: a manual flat treadmill or a walking pad is a fine walking tool and a poor running one. For what each price tier buys in more detail, see our guide to how much a treadmill costs.

3. Motorized Treadmills: Folding vs Non-Folding

A motorized treadmill is what most people picture: an electric motor turns a front roller, which drives the belt over a deck at the speed you set, usually with a powered incline. It is the most common type for home use because it is the most versatile: you can walk, jog, run, climb and run intervals on the same machine, and the belt holds an exact speed whether you are fresh or tired.

Folding treadmills

A folding treadmill hinges at the front so the deck lifts to stand roughly upright, usually with a gas-assisted mechanism to help raise and lower it. Folding reduces the footprint while it is stored, though not the height, and most still need moving on their transport wheels if you want the floor clear. The trade-off is that a hinge and a lighter frame generally make for a little less stability at running speed than a fixed frame of the same price, and many folding models have shorter decks.

Folding is the right choice for most walkers and joggers in smaller homes and apartments. Our folding treadmill primerexplains the mechanisms, and thebest folding treadmillsroundup picks machines by use case.

Non-folding treadmills

A non-folding treadmill has a fixed frame. At the same price, that usually buys a sturdier structure, a longer deck and a stronger motor, because none of the budget has gone into a hinge. It is the type to favour if you run regularly, are tall, are heavier than average, or simply want the deck to feel as solid as possible at speed. The cost is a permanent footprint that typically needs several feet of clearance behind it.

Our comparison offolding vs non-folding treadmillssets out the decision in detail, and thebest treadmills for runninglists machines with the decks and motors runners need.

DC and AC motors

Home motorized treadmills almost all use DC motors, which are quiet, efficient and run on an ordinary household outlet. Commercial machines often use AC motors built for continuous duty across many hours a day. The motor type matters less to most home buyers than the continuous-duty rating, which our guide toAC vs DC treadmill motorsexplains.

4. Manual Treadmills: Flat and Curved

A manual treadmill has no motor driving the belt. You move it with your own legs, which means no plug, no electronics to fail beyond a small battery console, and a pace that responds instantly to how hard you push. Beyond that, the two kinds of manual treadmill are entirely different machines.

Flat manual treadmills

Flat manual treadmills are the cheapest full-size type. They are usually small, lightweight and folding, with a short deck set at a fixed incline so that gravity helps the belt move, and often a magnetic resistance knob. Walking on one feels like pushing the belt rather than being carried by it, and the fixed slope means you cannot walk on the flat. They are fine for occasional walking where there is no outlet or budget is tight, and poor for running. Our comparison ofmanual vs motorized treadmillscovers the trade-offs.

Curved manual treadmills

A curved treadmill has a concave running surface, usually made of rubber-topped slats on bearings rather than a belt sliding over a deck. Stepping forward onto the curve sets it moving; staying near the front speeds it up, drifting back slows it down. There is no speed button. That makes curved machines superb for sprints and intervals, because the pace changes as fast as you do, and they are popular in performance gyms and athletic training.

They are also expensive, long, heavy and generally do not fold, and walking slowly on one takes more effort than people expect. Ourcurved treadmill guideexplains how they work, and thebest curved treadmillsand best manual treadmillsroundups compare current models across both kinds.

5. Walking Pads and Under-Desk Treadmills

A walking pad is a compact, low-profile motorized treadmill designed for walking. Most have no console upright and no handrail, use a remote control or app, top out at a walking speed or a slow jog, and are thin enough to slide under a bed or sofa or stand on end. Some fold in half. They exist to answer the most common reason people do not buy a treadmill: there is nowhere to put it.

The compromises follow from the size. Decks are short and narrow, motors are small, incline is absent or limited, and many are not designed for running at all. Some models add a fold-up handrail or a small fixed incline. Our explainer onwhat a walking pad iscovers the type, andwalking pad vs treadmillhelps decide between them.

Under-desk treadmills and treadmill desks

An under-desk treadmill is, in practice, a walking pad used beneath a standing desk, and the two terms are used almost interchangeably. What matters for desk use is a low maximum speed that holds steady at 1 to 2 mph, a quiet motor, a step-up height that still lets you set the desk correctly, and a deck long enough for a relaxed stride. A treadmill desk is either a pad paired with a separate desk or a single integrated unit with a work surface fixed above the deck.

Our guide tounder-desk treadmillscovers the type, and thebest treadmill desksand best walking pads with inclineroundups compare current models. One safety note applies across the category: in April 2026 the US Consumer Product Safety Commission told owners to stop using Sperax walking pads and treadmills, citing uncontrolled speed changes, falls and fire reports, after the importer declined a recall. Check cpsc.gov for any walking pad before you buy, especially an unfamiliar brand.

6. Incline Trainers and Decline Treadmills

An incline trainer is a motorized treadmill built around a much steeper incline range than standard. Most home treadmills top out at around 10 to 15% grade; incline trainers typically reach around 40%, and most also decline a few percent below level. The machine is heavier, rarely folds and costs a substantial premium over a standard treadmill with similar running specifications.

The type suits people training for hiking, mountain events or steep trail races, and walkers who want a hard workout without running. For most others the extra range goes unused: if you rarely reach the top of a standard treadmill's incline, a 40% ceiling is not an upgrade you need. Our comparison ofincline trainers vs treadmillssets out who genuinely benefits.

Decline is a related feature rather than a type of its own. A small number of standard treadmills, as well as most incline trainers, can tilt the deck downhill to simulate descents. It is useful for runners preparing for hilly races and a load on the knees and quadriceps for everyone, which is why it is introduced gradually. Our roundup oftreadmills with declinelists machines that genuinely go downhill.

7. Commercial Treadmills

A commercial treadmill is built to run for many hours a day under many different users, the job a gym asks of it. That shows in the parts: heavier frames, larger rollers, thicker decks and belts, motors rated for continuous duty (often AC), and service designs that assume a technician will be visiting. Commercial machines are typically longer and much heavier than home treadmills and do not fold.

For a home, the type makes sense for very heavy use — several family members running daily, or a single serious runner logging high mileage — and for buyers who find a good ex-gym machine at a fair price. It comes with practical questions that home machines avoid: whether it fits through your doors and up your stairs, whether your floor is suitable, and whether the manufacturer asks for a dedicated circuit or a specific plug. Our guide to putting agym treadmill in your homecovers those, and thecommercial treadmillspage covers the category.

Check warranty terms before buying a commercial machine for home use. Some manufacturers write separate terms for residential and commercial installations, and a used gym machine usually carries no warranty at all.

8. Smart Treadmills: A Feature, Not a Format

A smart treadmill is any treadmill with built-in connectivity: usually a touchscreen, Wi-Fi and Bluetooth, and a subscription platform offering trainer-led classes, scenic routes and automatic control of speed and incline. Some have no screen of their own but connect to third-party apps on a tablet or phone. Smart is a layer on top of the types above rather than a type of its own: there are smart folding treadmills, smart non-folding treadmills, smart incline trainers and even app-connected walking pads.

Two questions matter more than the screen size. First, what the treadmill does without a subscription: some work fully in manual mode, some restrict features, and the ongoing cost of a membership adds up over a machine's life. Second, whether the hardware underneath is worth the price on its own, since a large screen can make a modest motor and deck look like a premium machine. Our comparison ofsmart vs regular treadmillscovers both, the best smart treadmillsroundup compares current models, and our list oftreadmills without subscriptionscovers the other side.

A related group are treadmills that work with third-party running platforms such as Zwift, either through built-in Bluetooth speed reporting or a foot pod. OurZwift treadmill guideexplains how that connection works.

9. Dog Treadmills

A dog treadmill is built for a dog's gait and behaviour rather than a person's. Typical differences are a lower step-up height, side panels or walls that keep the dog centred and stop it stepping off, a longer belt relative to the machine's footprint for larger breeds, and controls placed out of the dog's reach. Most are motorized; slatmills, used for high-drive working and sporting dogs, are non-motorized and let the dog set the pace, rather like a curved manual treadmill for people.

A human treadmill can sometimes be used for a calm dog under close supervision, but the open sides, high deck and controls designed for people make it a compromise. Whichever machine you use, never tether a dog to a running treadmill, and ask your vet before starting, particularly for puppies, older dogs and breeds prone to joint or breathing problems. Our guide totreadmills for dogscovers safe introduction, and thebest dog treadmillsroundup compares current models by size.

10. VR and Omnidirectional Treadmills

A VR treadmill lets you walk or run in any direction inside a virtual-reality game while staying in one place. Despite the name, most consumer models do not have a belt. The Virtuix Omni One and the KAT Walk C2, two of the better-known examples, both use a low-friction base and special overshoes: you slide your feet across the surface, sensors track the movement, and a support arm or harness holds you in place, with a VR headset providing the picture. Motorised omnidirectional floors that move under you in two directions exist too, but mostly as research and commercial installations.

As exercise equipment, VR treadmills are a different proposition from everything else on this page. They are designed to make moving around in a game feel natural rather than to give you a set speed, incline or distance, the sliding gait is not the same as walking or running, and reviewers consistently describe a learning curve. They can be physically demanding in the way active games are, and that is a fine reason to buy one, but they are not a replacement for a treadmill if your goal is walking or running fitness. Prices and the headsets they support change frequently, so check the maker's current listing; they are priced as specialist gaming hardware rather than as entry fitness equipment.

Medical and clinical treadmills

For completeness, there are also treadmills built for clinical use: machines for cardiac stress testing, body-weight-supported and underwater treadmills used in rehabilitation, and others found in hospitals, physical therapy clinics and research labs. They are medical equipment rather than consumer types, used under supervision. Our explainer on thetreadmill stress testcovers the one most people meet.

11. Which Type of Treadmill Is Right for You?

The right type of treadmill follows from three answers: whether you will run or only walk, how much space you can give it, and how many hours a week it will work. Settle those before comparing brands.

• You only walk, and space is tight: a walking pad, or an under-desk pad if you want to walk while you work.
• You walk briskly with incline, and jog sometimes: a folding motorized treadmill with a powered incline.
• You run several times a week, are tall, or are heavier than average:a non-folding motorized treadmill with a long deck and a strong continuous-duty motor, or a sturdy folding one if space forces it.
• You want steep hill walking or train for mountain events: an incline trainer.
• You do sprints and intervals, or train athletes: a curved manual treadmill.
• Many users or very high mileage: a commercial treadmill, new or a well-chosen used one.
• No outlet, very tight budget, walking only: a flat manual treadmill, accepting its limits.
• You want guided classes: a smart version of whichever type fits the answers above, with the subscription cost counted in.

Then measure. Every type needs clearance behind and beside the deck, and the folded dimensions of a folding machine are often larger than people expect. Our guide totreadmill dimensions and space requirementssets out the numbers, and thetreadmill buying guidecovers motor, deck, cushioning and warranty once you know the type. If you are still undecided, the portable treadmillsguide compares the space-saving types side by side.

Whatever the type, check cpsc.gov for recalls and warnings on the brand and model before buying, register the machine with the manufacturer so you hear about any future recall, and read the manual's installation and electrical requirements before it arrives.

12. Frequently Asked Questions