Reviews You Can Rely On

How We Tested Treadmills

By Joshua Hutchens ⋅ Senior Review Editor

How to Choose a Treadmill for Home Use


After years of studying treadmills, we launched our own hands-on testing to offer consumers an independent perspective. We researched the best treadmills on the market and purchased a diverse selection—no loaners, corporate samples, or rentals. We assembled and rigorously tested each one, narrowing our findings to the twelve top performers featured in this review. Our evaluation focused on six key metrics: exercise quality, user interface/ease of use, features, ease of assembly, storability, and noise level. This article details our testing methodology for each metric.

It's testing, not just regurgitating manufacturers' specs.

Exercise Quality and What it Means


Since a treadmill's core purpose is delivering quality workouts, we weighted exercise quality at 35%—the highest of any metric in our scoring system. Several factors distinguish performance across models, with running surface size being among the most critical. We measured each treadmill's usable surface area and compared it against manufacturer claims, which don't always reflect the actual dimensions. Larger decks accommodate faster running with longer strides, while compact surfaces work well for walking. Usable width matters too—worrying about clipping the sides diminishes workout quality.

We also evaluated deck cushioning through side-by-side comparisons to assess impact absorption. Beyond subjective tester feedback, we developed a custom testing jig to quantify deck flex objectively. The jig supports each treadmill while applying controlled pressure to the center of the running surface, using a digital force meter to record the pounds of force needed to flex the deck 12mm. This data-driven approach supplements professional runner insights with precise, comparable measurements across all machines.

Our shorter runners with smaller strides don't use all of the running deck at medium speeds, but taller runners and faster strides make full use of longer decks.   Credit: Joshua Hutchens

Speed range is a crucial consideration when selecting a treadmill. While a 12 mph maximum may exceed most users' needs, the flexibility can prove valuable over time. Walkers benefit from lower speeds with fine-tuned incremental adjustments, whereas serious runners require higher speeds for interval and intensity training. We verified manufacturer speed claims by testing each model across its full range and pushing it to its limits.

We also assessed speed accuracy using a rolling measuring wheel on the belt for sixty seconds. Since a mile equals 5,280 feet, a perfectly calibrated treadmill running at 6 mph should measure exactly 528 feet in one minute. We calculated the deviation from this benchmark as a percentage. While no model achieved perfect accuracy, several came remarkably close—a critical factor for competitive runners who depend on precise data for training.

Testing the machines includes measuring their accuracy.   Credit: Joshua Hutchens

We independently verified motor specifications rather than relying on manufacturer claims. This involved disassembling each treadmill to examine the motor, its housing, and the presence of a flywheel—weighted flywheels create a more natural belt motion underfoot.

We also measured incline capabilities directly, and our published data often differ from manufacturer specifications. Marketing language can mislead: “0-15 settings” refers to incline positions, not degrees of elevation. Our measurements provide accurate, comparable data across models. Several treadmills include decline functionality, which benefits trail runners training for downhill terrain but offers limited value for most users.

According to Ian Anderson, Physical Therapist and owner of PT Revolution, “Increasing the incline simulates hill climbing, targets different muscle groups, changes your gait, and burns more calories.

treadmill - figuring out the best treadmill for your needs, we take a...
Figuring out the best treadmill for your needs, we take a data-intensive approach to gathering the facts. Testing the accuracy of the speed sensor and measuring the actual achieved incline are just part of our testing protocol.   Credit: Joshua Hutchens

Connectivity and Companion App


Today's exercise machines increasingly feature connectivity options and training apps, which for some users matter as much as the hardware itself. While self-motivated exercisers may train effectively without digital assistance, many users value the entertainment, motivation, and coaching these apps provide. Connectivity varies by model: premium machines include integrated touchscreens with WiFi access to proprietary apps, while others use Bluetooth to link with apps on your tablet or smartphone. Though all connected models we tested function independently, they deliver significantly more engaging workouts when paired with their companion apps.

treadmill - there are a large number of components in these machines and...
There are a large number of components in these machines and building the best treadmill requires getting them right. Running decks can be softened in many ways; this machine uses six sets of elastomers with differing hardness.   Credit: Joshua Hutchens

We purchased memberships and activated free trials to thoroughly test each platform, including Peloton, Echelon, iFit, JRNY, and Zwift. After sampling numerous classes and videos across all platforms, we evaluated each app's features, variety, and overall quality. Since preferences vary widely, app selection had minimal impact on our overall treadmill scores. We also tested Bluetooth connectivity with accessories such as headphones and heart rate monitors on compatible models.

treadmill - the design and engineering of these machines can make a huge...
The design and engineering of these machines can make a huge difference in how easy they are to use.   Credit: Chris McNamara

User Interface/Ease of Use


The user interface—how you interact with the machine—directly impacts ease of use. High-end treadmills typically feature advanced touchscreens that serve as the central hub for selecting and viewing app-based workout programs. Budget models use simpler consoles with digital displays and physical buttons. Control placement also varies significantly; well-designed models position speed and incline adjustments within easy reach during workouts. Given the importance of intuitive operation, we weighted this metric at 25% of the overall score.

treadmill - some of the consoles rely almost entirely on the touch screen.
Some of the consoles rely almost entirely on the touch screen.   Credit: Matt Lighthart

We conducted side-by-side comparisons of screen-equipped models and performed individual test workouts on each. Our evaluation covered screen resolution, color accuracy, brightness, and touch responsiveness, along with speaker sound quality. By frequently adjusting speed and incline during workouts, we assessed control ergonomics and responsiveness. The Sole F80 stood out negatively with notably sluggish incline adjustments.

While incline adjustments of this speed might work for a walking mill, doing HIIT training or Hill workouts will be difficult with this level of response.   Credit: Joshua Hutchens

For models without touchscreens, we evaluated digital display size, readability, and the information presented. We tested every control for ergonomic design and connected external devices and apps where supported. These comprehensive assessments provided clear insights into each treadmill's user interface and overall usability.

treadmill - a clean and sweat-proof console is easy to use and clean.
A clean and sweat-proof console is easy to use and clean.   Credit: Matt Lighthart

Features


Treadmills offer features spanning from basic conveniences like water bottle holders to premium additions such as swiveling touchscreens and app integration. We weighted this category at 15% of the overall score, evaluating not just quantity but the quality and practical value of each feature. Our assessment focused on how features enhance convenience and improve the workout experience. Some models pack in extensive amenities while others take a minimalist approach; what matters most is whether the included features genuinely serve users' needs.

treadmill - by putting each treadmill together ourselves, we were easily able to...
By putting each treadmill together ourselves, we were easily able to assess the ease of assembly.   Credit: Jeremy Benson

Ease of Assembly


Treadmills arrive in large, heavy boxes and typically require assembly before use. While a few models come nearly ready out of the box, most demand time and effort to set up. We assembled each treadmill ourselves (except the Peloton) to gauge difficulty and time requirements firsthand. This metric represents 10% of the overall score. Some models, like the NordicTrack X16, aren't particularly complex to assemble but present challenges due to their weight—over 400 pounds in this case.

treadmill - a side-by-side comparison of the storable size of several of the...
A side-by-side comparison of the storable size of several of the models we tested.   Credit: Jeremy Benson

Storability


Storage considerations depend heavily on your available space. Treadmills are inherently large machines that occupy substantial floor area even in dedicated workout rooms. Nearly all models we tested include folding mechanisms to minimize their footprint when not in use, though some prioritize compactness more than others. We measured each treadmill's dimensions in both open and folded configurations, comparing them against each other and manufacturer specifications. We also documented claimed weights, as the largest models exceeded our scale capacity. Most treadmills feature integrated wheels for mobility on flat surfaces—we relocated each model multiple times to evaluate ease of movement. This metric accounts for 10% of the overall score.

While easy to fold, the Sole treadmill still occupies a sizable space.   Credit: Joshua Hutchens

Noise Level


We measured noise levels using a sound level meter positioned 24 inches above the floor and 18 inches diagonally from the motor beside the tread deck. Decibel readings were recorded at 1, 4, and 7.5 mph under two conditions: with the belt running empty and with a tester walking or running. Since all treadmills generate some noise and variations between models are relatively modest, this metric carries a 5% weight in the overall score.

treadmill - we use a sound level meter to measure the noise of each model we...
We use a sound level meter to measure the noise of each model we test. The differences are subtle, but some clear winners have emerged.   Credit: Laura Casner

Conclusion


When looking for the perfect treadmill, there are many factors to consider. Our team of experts uses a rigorous process to compare and test various models, identifying their important performance differences. Our goal is to provide you with the information you need to make an informed purchase decision.