10 Best Flat Treadmills 2025 in the United States

The NordicTrack T 6.5 S treadmill is a solid choice for those looking to run or walk at home with moderate speed and incline options. It offers a motor that supports speeds up to 10 mph and an incline range up to 10%, which is useful for varying your workouts and building strength. The running surface is 20 inches wide and 55 inches long, providing enough room for comfortable walking or running without taking up too much space. One convenient feature is its SpaceSaver design, allowing you to fold and roll it away, which is great if you need to save room.

This treadmill includes smart technology with Bluetooth connectivity and a 5-inch LCD screen that shows your workout stats. However, most of the interactive and training features, including speed and incline auto-adjustments, require an iFIT membership that comes at an extra monthly cost. This means to get the most from its personalized coaching and global workout experiences, you’ll need to subscribe, which might not suit everyone. Its frame is built from alloy steel, supporting users up to 300 pounds, and it weighs about 203 pounds, making it stable but not very portable. The treadmill also features built-in speakers and one-touch controls for quick speed and incline changes, adding to workout convenience.

The 5-inch screen is sufficient for basic tracking but smaller compared to other models with larger displays. Assembly is required, so some setup time is needed. The NordicTrack T 6.5 S suits adults who want a compact, foldable treadmill with decent speed and incline ranges, especially if they are interested in app-connected, coached workouts and don’t mind the subscription. Those who prefer a treadmill that operates fully without extra fees or one with a bigger screen and more cushioning may want to explore other options.

The NordicTrack T Series 5 treadmill is a solid choice for adults interested in both walking and running. It features a motor power of 2.6 horsepower, which should be sufficient for most casual to moderately intense workouts. The treadmill's speed range is up to 10 MPH, and it offers an incline range of 0-10%, allowing users to vary their workouts and target different muscle groups effectively. One notable strength is its foldability, which makes it easier to store in compact spaces when not in use. Additionally, the cushioning on the running surface helps reduce impact on your joints, making it more comfortable during longer sessions.

The running deck measures 55 inches in length and 18 inches in width, which is adequate for most users but may feel slightly narrow for those with longer strides. The LCD display provides basic metrics, and there is a device shelf for those who prefer to follow workouts on their own devices. However, many of the advanced features, such as the SmartAdjust technology, ActivePulse, and AI coaching, require a separate iFIT membership, which costs $15 per month. This subscription is necessary to access the full library of workouts and personalized coaching, which might be a downside for some users. Another point to consider is the weight capacity of 300 pounds, which should accommodate most users comfortably.

The treadmill integrates well with third-party apps like Strava, Garmin, Google Fit, and Apple Health, offering a comprehensive way to track and store your fitness data. Lastly, the warranty offers good coverage for the frame (10 years) and a year for parts and labor, providing additional peace of mind. The NordicTrack T Series 5 is a good all-around treadmill with a range of features suitable for a variety of fitness levels, though the dependence on the iFIT membership for advanced features could be a limiting factor for some.

The NordicTrack Commercial Series Treadmill is designed to meet the needs of adults who enjoy running, walking, and jogging. It boasts a powerful 3-horsepower motor and a generous running surface of 20 by 60 inches, which should accommodate most users comfortably. The speed range extends up to 12 miles per hour, and the treadmill offers both incline and decline options, allowing for varied and challenging workouts. The iFIT-enabled feature provides access to over 10,000 interactive workouts, although this requires a separate subscription. The 10-inch tilt and pivot touchscreen adds to the immersive experience, making it easy to follow along with workouts.

The inclusion of Runner’s Flex Cushioning helps reduce the impact on your joints, which is beneficial for frequent users. With a weight capacity of 300 pounds, it is suitable for a wide range of users. The SpaceSaver design and transport wheels enhance its practicality, allowing it to be folded and stored away when not in use. Additionally, the EasyLift Assist feature makes folding and unfolding the treadmill hassle-free. On the downside, the treadmill is quite heavy at 275 pounds, which might make it difficult to move around despite its transport wheels.

The iFIT subscription, while offering extensive workout options, is an additional cost that some users may find burdensome. Moreover, the treadmill's size might be a consideration for those with limited space, even though it is foldable. The product has a solid build with a 10-year warranty on the frame, 2 years on parts, and 1 year on labor, which speaks to its durability and the manufacturer’s confidence in the product.