If you have knee, hip or joint pain or mobility issues that make it difficult to stay active, or you just despise sitting all day, one of the best ways to expel extra energy is with a a low-impact seated elliptical. Government studies show this, by the way. These little devices work like recumbent bikes, letting you pedal while sitting on a couch or at a desk, combating an otherwise sedentary lifestyle. If that sounds good to you, we found a digital, remote-powered option that can assist in pedaling, track your progress, is ultra-quiet, is light enough to move from room to room and is so effective, one reviewer says that “after two days of 30 minutes each day, I can already tell a difference in my legs!”

Great for mindlessly working out while watching television or even reducing leg strain for remote workers, this easygoing machine is 17% off right now on Amazon— dropping it to under $70 for a limited time for Prime members only. Not bad for a machine some say is “great for building up leg strength.”

The seated elliptical has five manual speeds, plus e-assisted options.

While other mini steppers (like this bestselling one HuffPost users love) provide manual pedaling only, this digital option goes the extra mile. It’s got an LCD screen to show calories burned, speed, distance traveled and more, plus a remote to operate its automatic functions. You can also pedal forward or backward with five manual and three automatic-assisted pedaling speeds, letting you choose the resistance to be as leisurely or strenuous as you want. Even better, this under-desk elliptical ships ready-to-use, straight out of the box. Just set it on the ground and pedal away with no need to install or tinker with any pieces.

“I find this very substantial, yet easy for me (age 78) to carry,” one reviewer shares. “It doesn’t slide or ‘walk away’ during use. Once I figured out the remote, it’s easy to start and I like the program that gradually increases speed and reverses directions periodically, then slows for ‘cool down.’ Last night I did 7500 ‘steps’ watching a basketball game… I’m very satisfied.”

It’s quiet and doesn’t take up much space in the household, so it won’t disturb others while you sneak a workout in. “For the price point, this machine gives great exercise,” says a reviewer. “I have mobility issues, and I started with the first [power] level. […] Week two, I switched to level 2, and wow, it really worked the leg muscles. I could feel it from my ankles to my hips.

Relieve some of that sedentary fatigue with this easygoing device for just under $70, and check out additional promising reviews if you need more of a reason to pedal at home.

“Love this chair elliptical machine! I am 68 years old, starting to have hip and knee issues and this machine has helped me to improve my mobility limitations. Variable speed, not too heavy to move around, sturdy and fits perfectly under my desk. Has many features to track your progress. Only downside, the unit stops after 30 minutes. No problem, if I want more time, I just start it up again.” — Suess

“Recovering from surgery, I have increased my daily steps significantly! I use it while I’m doing Diamond Art and watching Netflix! I love that it moves my legs FOR ME! Lazy exercise! My mother also enjoys hers.” — Qenie

“I got my elliptical leg exerciser and after two days of 30 minutes each day, I can already tell a difference in my legs! The machine is quiet and seems to be well built.” — Phyllis Clark

“My wife had knee problems but wanted to continue to move her legs with no or little stress. This machine has helped her accomplish her goal of exercise with no strain. It travels with us on trips very well.” — NORTH B.

“I bought this for my wife who works from home. She was having issues with her legs getting cramps and feeling fatigued from sitting for 8-10 hours a day. Now she doesn’t have the fatigue and her leg cramps have all but disappeared. It’s well built, totally quiet, runs forward or reverse, has a calorie counter and she absolutely loves it.” — The Grauke

“Looked and researched for awhile and this is the one I chose.. I am 68 and needed to get back to exercising after many falls.. This unit is solid and easy for me to use. Great value for the money, I would recommend this product.” — Edward & Sue Bibb

The Real Deal: We use deal trackers and commerce experience to sift through “fake” hike-and-drop deals and other deceptive sales tactics. Products will usually be rated at least 4 stars with a minimum 15% discount. (And when there’s an exception, we’ll tell you why.)