Nautilus T618 Treadmill Review (Features, Pros, Cons)

It’s a big task when you’re trying to find the best home treadmill… With so many treadmill models on the market, it can be hard to find a good one.

After a long, hard search, I’ve finally found one: the Nautilus T618. It’s an affordable, compact treadmill that delivers good value for your money.

The Nautilus T618 has simple controls and a 20 by 60-inch running surface. This treadmill is compact enough to fit almost anywhere, and it folds easily for storage.

The treadmill has an incline of up to 15 percent which makes it perfect for uphill training; this treadmill will prepare you for just about any fitness workout. And unlike some treadmills, this one has a 3.5-horsepower motor.

Plus, it’s backed by a 15-year warranty.

Specs at Glance

Motor:3.5 HP
Incline:Up to 15%
Running Area:20″ x 60″
Top Speed:12 miles per hour
Weight Capacity:350 Pounds
Weight:288 Pounds
Dimensions:(L x W x H)_78″  x 37.6″  x 62.8″
Built-in programs26-programs
Warranty:15 years in motor and frame 5 years mechanical and electrical 2 years labor

What I Like:


The Nautilus T618 treadmill is designed with a 3.5 CHP motor, 20″ x 60″ running surface, and 15 levels of incline to provide users with the ability to run, jog, walk, bike, or perform cardio workouts.

This treadmill is also designed with a dual-track display, with 2 high-resolution backlit monitors so you can watch videos or read a magazine while keeping an eye on your time, distance and calories burned.

It is also designed to work in a variety of spaces, thanks to a low-profile design that takes up less space than most treadmills.


This treadmill is made with the latest technology. It has dual screens that offer access to workout metrics, even when the media tray is in use.

It has built-in speakers and an iPod/iPhone dock, so you can play your favorite music; it also has Bluetooth® connectivity.

The T618 is loaded with 26 training programs, and the hottest app-based tracking tools like the Explore the World™ App.

Ease of Use:

Nautilus T618 Treadmill is a simple treadmill that has basic features, it is very easy to use and does not require a ton of maintenance.

The Nautilus T618 treadmill is sturdy and easy to set up. With a sturdy build, this treadmill can easily handle running, walking, workouts, and incline.

The Nautilus T618 Treadmill is one of the easiest treadmills to use. Thanks to this feature, it is perfect for both beginners and pros.

With the ability to track your stats on an easy-to-use monitor, keeping track of your fitness will always be easier.


Nautilus T618 has a 3.5 HP motor which is respectable. With the added incline of up to 15%, 26 workout programs, 20-inch tread belt, and 3-ply, the puncture-resistant belt makes it easy to use and fun to run on.

Exercise programs:

The Nautilus T618 also stands out because of its workout programs. Of the treadmills I researched, this model has one of the best variety of programs.

The Nautilus T618 comes with 26 programs, including a number of custom ones. These let you choose from a 16-minute walking or running workout, a 20-minute high-intensity workout, or a 30-minute yoga workout.

There’s also a “fitness test” mode, which helps you stay focused.


The Nautilus T618 treadmill is a massive piece of equipment that takes up a lot of room but the folding mechanism makes it easy for storage and transportation.

Weight Capacity:

The Nautilus T618 treadmill is a great treadmill for running. Its heavy-duty frame is durable and solid enough to handle heavy weights up to 350 Pounds. It is one of the best treadmills for big guys

The cushioning system on the Nautilus T618 treadmill keeps you comfortable while running.


This treadmill is $1500. Even though it is of much higher quality, it’s a little bit expensive compared to other models.


The warranty on the Nautilus T618 treadmill guarantees customers the quality of the equipment. The warranty generally covers free servicing, replacements, and repairs.

The treadmill has 15 years warranty on the motor and frame, 5 years warranty on mechanical and electrical, and 2 years labor warranty.

What I don’t like

  • It has less number of programs installed in it (26) compared to other types of treadmills like NordicTrack S25i which has 50 programs installed in it.
  • The Nautilus T618 screen display is not a touchscreen, and it is not big enough to see your workout while in progress.
  • Due to its weight and bulkiness, getting the treadmill out of the box is a bit of a challenge for 1 person. Moving it around is also a challenge. It does have wheels in the front but it’s still heavy.
  • You can’t directly connect your phone to the treadmill without an app and if you have it, there is no ability to record manual activities on it.
  • The Nautilus T618 Treadmill speakers are not of good quality, they doesn’t produce quality sound.


Which is better Nautilus or NordicTrack?

Both are better machines since they deliver almost all of the best workout experiences.

The Nautilus T618 comes with a 3.5 CHP motor which is pretty impressive, but the NordicTrack 1750 has a slightly stronger 3.75 CHP motor.

If you are a plus-size person I would recommend you to use the Nautilus T618 since it supports more weight compared to NordicTrack 1750.

What apps work with the Nautilus treadmill?

The Nautilus T618 Treadmill works with the Explore the World™.

Nautilus T618 Treadmill Review

My Verdict:

In conclusion, you will be mesmerized by the Nautilus T618 Treadmill and the low-impact, high-intensity workout it brings.

The T618 is a great option for anyone looking for a solid, heavy-duty treadmill at a great value.

The T618 Treadmill is fit for a commercial gym, but with a price tag of $1500, it won’t leave your bank account in ruins.

It may not have most of the features like NordicTrack, but it’s still a solid home treadmill that can help you get fit and stay motivated.

Also, check out the Nautilus T616 Treadmill Review