During testing, several users (of varying body types and weights) logged miles on this treadmill—it remained stable and sturdy regardless of speed or incline. We evaluated each folding treadmill for several weeks, completing dozens of workouts with each product. Size is an important factor when choosing which folding treadmill to purchase—you should look at folded and unfolded dimensions before choosing a machine. If you’re looking to get a high heart rate and lactate, intervals are good, in which case you don’t need to run for very long on the treadmill.

Unlike Echelon’s Stride Auto-Fold Connected Treadmill, this product doesn’t fold flat so it’s best for larger spaces or home gyms. It’s the most expensive option on our list, but worth it because of its large and crisp display, interactive iFit training on and off the machine, metric tracking, and more. You can also log into apps like Facebook and Twitter, as well as screen mirror anything straight from iOS and Android devices to the console screen. The only other product on our list that folds completely flat is Echelon’s Stride Auto-Fold Connected Treadmill, which stands at 10 inches tall when folded.There are two ways to adjust the speed and incline, and when adjusted, the treadmill moves smoothly and quietly. One downside, the machine does not arrive assembled, and putting it together was tedious and time-consuming (it took three people and over three hours!

If you don’t want to use the XTERRA+ app, you can also follow along to one of the treadmill's 12 pre-programmed workouts, or connect to third-party apps like Zwift and Kinomap. After downloading the XTERRA+ app—which offers dozens of workout programs—it was easy to add multiple user profiles and user-specific fitness goals. We love that helpful, motivating metrics (like speed, distance, calories burned, and more) are clearly displayed on the touchscreen and can be tracked directly on the treadmill, on Apple Health, or from your Apple Watch. Smaller folding treadmills often fold completely flat, while large ones have a belt that folds up at a 45-degree angle. And if you want a guided workout, you can follow along to the treadmill's pre-programmed workouts or connect to other popular fitness apps like Zwift and Kinomap.Treadmills can be a great addition to any at-home gym, allowing you to conveniently incorporate cardio into your regular fitness routine.

With expert guidance from Andrew Billman, ISSA, CPT, and John Honerkamp, RRCA, a USATF-certified running coach, we tested over 20 top-rated folding treadmills to find the best on the market. Our team of fitness editors (from varying fitness backgrounds and experience levels) tested over 20 top-selling treadmills from their homes to find the best folding treadmills on the market. We used the iFit platform to track progress, complete scenic runs in Mexico City, and adventurous walks through the Serengeti—leaving each workout feeling accomplished and inspired. We love Nordictrack’s Commercial 2450 Folding Treadmill for its stunning display, sleek design, durability, and iFit integration.Depending on your lifestyle, space, and needs, characteristics to consider include dimensions, weight capacity, speed, and incline. If you're an experienced runner, you can extend your workout to 60-75 minutes or maybe even longer if your body feels good.