NordicTrack X15i Incline Trainer

NordicTrack X15i Incline Trainer


UPDATE: The NordicTrack X15i Incline Trainer has been discontinued, replaced by the all new X22i model. Check out the new top-of-the-line model here.


The X15i is a new top-of-the-line incline trainer from NordicTrack. The most advanced machine in the series, the X15i is designed to offer you the perfect combination of intense training and exciting entertainment.


Click Specifications to see detailed model info

Speed : up to 12 mph 1-Touch

Incline : up to 40% 1-Touch

Decline : -6-0% 1-Touch

Motor : 4.5 CHP DurX Commercial Pro

Belt : 22" x 60"

Cushioning System : Reflex system

Workout Programs : 44 Built-In

Heart Rate Monitor : Built-in Dual CardioGrip sensors in both handlebars and a wireless chest strap included for accurate heart rate readings

iFit Compatibility : Included

Display : 10-inch fully web enabled touchscreen monitor

Sound System : iPod compatible sound system with built-in speakers included

Cooling Fan : Two Autobreeze cooling fans included

Maximum User Weight : 350 lbs/ 159 kg

Footprint : 70.2” L x 39.6” W x 77.5” H

Warranty : Lifetime on motor, frame and deck, 6 years for parts & electronics, 3 years for labor. Let's take a look at the pros and cons of our NordicTrack X15i review.


Incline Training

The X15i inclines up to 40%, which is quite phenomenal, considering the fact that most treadmills incline only up to 15% or 20%. At 40% incline, you do not even have to run or jog. You can burn a huge amount of calories just by walking. You can see why the machine’s tagline says ‘no running necessary’.

If you are someone who has never trained at such a steep incline before, you will be able to feel the difference almost instantly. Try walking at 40% incline for just ten minutes and you will be sweating bullets. This is why professional fitness trainers say that incline training is the fastest and most effective way to lose weight.

High Definition Entertainment

The X15i comes with a beautiful 15” HDTV. You no longer have to set up your treadmill in your bedroom or living room to be able to watch TV while working out. You can put it in any room and still enjoy your favorite shows or movies during your workout sessions.


The machine is fitted with an incredibly powerful, commercial-quality 4.5 CHP motor (a step up from the 4.25 motor on the X11i model). It is durable enough to withstand high-intensity workouts on a regular basis.

High Quality Tread Belt

The tread belt is extra large and offers you plenty of space to jog or run comfortably, regardless of your height. It is infused with a special lubricant which improves its performance and also makes it less prone to wear and tear.

NordicTrack Incline Trainer stats

Noise-free Workouts

The X15i offers a surprisingly noise-free, stable performance. Even at high speeds, the machine does not wobble or make a lot of noise. So, you can watch TV or listen to your favorite songs without having to put up with a jarring noise in the background.

Workout Programs

The machine comes preloaded with 44 workout programs that are divided into four categories – calorie, intensity, speed, and incline workouts.

If you are an iFit subscriber, you can download customized workout programs that are specifically designed to meet your fitness goals. You can also choose various terrains and running tracks from around the world and the machine will automatically adjust the incline to simulate the features of the chosen terrain.

Complete Control at Your Fingertips

The touchscreen monitor is incredibly easy to use and gives you complete control of the treadmill. You can adjust the incline, change the speed, choose a workout program, and check out your workout data at the touch of a button.


Large Footprint

The X15i is large and heavy and takes up a lot of space, so it might not be ideal if you have a very small area to put it.

Price Tag

The machine is very similar to its sister model – the X11i. The only differences are the slightly more powerful motor (4.5 CHP as opposed to the 4.25 CHP motor in the X11i) and the 15” HDTV.

If you already have a TV in your workout room or if you simply do not like watching TV while working out, you can go for the X11i and save $500.

Final Thoughts

The new NordicTrack X15i treadmill is stylish, sturdy, innovative, and easy to use. It has all the features that you would like to see in a treadmill and then some more. The slightly higher price tag might be an issue if you are on a tight budget. In which case, you can opt for the X11i or the X9i, both of which are excellent machines in their own right.

If the price tag is not a concern for you, go for it by all means. This is by far the best machine in its class and is designed to offer a gym-like workout experience every time you step on it.

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