Best Exercise Equipment for Bad Knees

Start with the part a buying guide has to say out loud. No exercise machine treats a knee condition, none of the equipment below is “good for your knees,” and we are a fitness publisher rather than a clinician. We do not know your history, your diagnosis or your imaging, and we are not going to imply that a spec sheet substitutes for someone who can look at the joint. If you have not had that conversation yet, have it before you spend anything.

What a spec sheet genuinely can tell you is narrower and still useful. Three published properties separate the machines in a home-equipment catalogue, and all three are things people with knee pain tend to care about: whether the movement is seated or standing, whether your foot ever leaves the surface (impact), and how far you have to step over a frame to get on in the first place. That last one is the spec almost no roundup prints, and for a lot of readers it is the one that decides everything, because mounting and dismounting a machine is usually the only uncontrolled, single-leg, loaded movement in the whole session.

So this page sorts our catalogue on those properties and says plainly where a maker does not publish a figure. We own none of this equipment and have tested none of it.

The three specs that actually separate these machines

1. Seated or standing

On a standing machine — an upright elliptical, a treadmill, a walking pad — your legs carry your bodyweight through the whole movement. On a seated machine — a recumbent elliptical, a recumbent or upright bike, a rower, an under-desk pedal unit — the frame carries most of it. That is a large, structural difference in load, and it is published for every machine in the plainest possible way: look at the photograph.

Seated is not automatically better. Standing is weight-bearing, which is a property the physical activity guidelines value for reasons beyond cardio, and a machine you can stand on comfortably gives you more than one you cannot. But if the question you arrived with is “what can I use without loading the joint,” seated is the answer the catalogue gives.

2. Impact: does the foot leave the surface

This is the cleanest line in the whole category. On an elliptical, a bike, a rower and an under-desk pedal unit, your foot never leaves the pedal — there is no landing, so there is no impact. On a treadmill or a walking pad, every step is a landing. That is not a verdict on treadmills, which are excellent machines; it is a statement about what they are, and it is why the walking pad appears below with a caveat rather than a recommendation.

Resistance type matters alongside it. An electromagnetic or magnetic resistance system — which is what the Sunny machines here use, with 16 levels each — sets a load you choose and can repeat exactly. A number on a console does not drift the way “go gently” does on day forty, and repeatability is worth more than range when the point is to stay comfortably inside a limit.

3. Step-over height, and getting back up

A step-through frame means you walk into the machine rather than lifting a leg over it. That removes a single-leg, loaded, balance-dependent movement from both ends of every session. It is the reason the recumbent elliptical leads this page, and the reason a low seat is a genuine consideration rather than a quibble: on the rowers we cover, published seat heights run from 9 in to 17 in, and lowering yourself to a 9 in seat and standing back up is a deep loaded bend that happens twice a session no matter how carefully you train.

Few makers publish a step-over figure. Where ours do not, we print “Not published” rather than estimating — and the practical test costs nothing: find a chair you can get out of without pushing off with your hands, measure it, and shop against that number instead of against a review score.

What to buy, by situation

If getting on and off the machine is the hard part, the Sunny Health Smart 2-in-1 Electro-Magnetic Recumbent Elliptical is the pick here, and the step-through frame with back support is the whole point of it rather than a luxury. Sunny publishes 16 electromagnetic resistance levels, a 300 lb user capacity, 12 preset plus four user programs, a monitor that reports time, speed, RPM, distance, watts, calories and heart rate, a 71.7 x 33.3 x 50.8 in footprint and the free SunnyFit app with no subscription. Watts matter more than they sound: they turn “take it easy” into a number you can hold and repeat.

If space or mobility rules out a machine, the Cubii JR1 is a seated under-desk elliptical at 23.15 x 17.56 x 10 in with an LCD for strides, distance and calories. Judge it honestly: it is not a cardio machine so much as a way to stop sitting completely still, and Cubii publishes neither a resistance-level count nor a user weight capacity for it. On that basis it is the most-used piece of equipment a desk worker can own.

If standing is comfortable and you want a full stride, the Sunny Health Upright Magnetic Elliptical publishes a 16 in stride — the length most home ellipticals cut to save money — with 16 magnetic levels, belt drive, dual aluminium rails, pulse handlebars and a 48 x 25.8 x 64.8 in footprint. Sunny does not publish a user weight capacity for this model, which is a real gap and worth asking about before you buy.

If what you actually need is more movement in the day, the UREVO Walking Pad publishes up to 4 mph, no incline and a 265 lb capacity in a slim, portable profile. It belongs here with the caveat stated clearly: walking is an impact activity, so this is the one pick on the page whose foot does leave the surface.

Sunny Recumbent Elliptical - seated, step-through, 300 lb

$699.99

Amazon: In stock

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Cubii JR1 - seated under-desk, zero impact

$169.99

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Sunny Upright Elliptical - 16 in stride, standing

$499.99

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Price as of October 12, 2026. #ad How we’re funded

UREVO Walking Pad - up to 4 mph, 265 lb

$169.99

Amazon: In stock

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Price as of October 12, 2026. #ad How we’re funded

If you would rather compare the full elliptical range on stride length and footprint, that is our elliptical roundup; the seated-bike version of this decision is in upright vs recumbent bike; and the two zero-impact machines people most often weigh against each other are compared in rowing machine vs elliptical.

What about strength work?

The guidelines do not stop at cardio: the federal recommendation includes muscle strengthening on two or more days a week, and the CDC’s guidance for older adults adds balance activities. Nothing about a knee problem removes that from the picture, though what is appropriate for you is — again — a clinical question rather than a catalogue one.

From a purely mechanical standpoint, the equipment in our strength range that loads the upper body without asking anything of the knees is the obvious starting point: resistance bands used seated, adjustable dumbbells used seated on a bench, and the recovery tools in our recovery roundup. Bands in particular have the useful property that the load is set by how far you stretch them, so you can work at a genuinely small load without buying small weights.

The honest case for buying nothing yet

A lot of people arrive at a page like this ready to spend several hundred dollars, and for some of them the better outcome is to spend nothing this week. Two reasons.

First, the guidelines are written in accumulated minutes, not machines. Walking, if walking is comfortable for you, clears the entire aerobic recommendation with no purchase at all, and Mayo Clinic’s intensity guidance is enough to tell whether you are in the moderate band without a monitor. A machine is for when the weather, the route, the schedule or the surface makes that unreliable — which is a real problem worth solving, but a different one from fitness.

Second, the cheapest mistake in this category is buying the machine with the best spec sheet instead of the one you will get onto three times a week. A 300 lb-capacity, 16-level, watts-reporting recumbent trainer that lives in a spare room with a coat on it is worth less than a seated under-desk pedal unit you actually use. Buy for the thing that is currently stopping you — step-over height, standing, impact, space, noise — and ignore every feature that does not address it. And take the shortlist to a professional before the card comes out.