Advanced Search

Best Nautilus Treadmills of 2023

Nautilus is one of the oldest fitness brands around, so you can be certain they know their way around the fitness world! Nautilus combines cutting-edge technology with well made machines to give you the best work out experience possible. The table below compares the most popular Nautilus treadmills:

Top 1 Best Rated Nautilus Treadmills


Nautilus T618


Our custom rating considers all of the treadmill's features, specs, warranties, and 100's of user & expert reviews, to save you time!

Rating: 84.5%

The Treadmill Motor is what turns the belt as you run. We recommend at least 2 HP (Horsepower) motors, 2.5+ HP for jogging, and 3.0+ HP for running.

3.5 CHP peak AC motor

Treadmill Speed is measured in Miles Per Hour (mph). Average running speed is 5-9 mph.

0 - 12 mph

Treadmill Incline measures the angle of the deck, and how steep it is relative to the floor (0% is flat, and 15% is like a steep hill).

0 - 15%

Some treadmills are designed to conserve space by folding up. This is a convenient option, but some features might be reduced.


Suggested retail price, typically higher than the price you'll pay with our recommended retailers.


After carefully evaluating each online retailer that offers this Treadmill, this is the website we recommend purchasing from.

See Best Price

Nautilus Treadmills Buying Guide

Nautilus is a veteran when it comes to fitness equipment. They are one of the oldest brands still around and have a reputation for offering cutting-edge technology with well-produced machines.

In addition to Nautilus treadmills, the manufacture also produces exercise bikes, ellipticals and home gyms.

Nautilus, Inc. also is the manufacture behind Bowflex, Schwinn and Universal. The corporation provides a complete line of innovative health and fitness products through direct, retail, specialty and international channels. The company is a pure fitness company that provides tools and education necessary to help people achieve a fit and healthy lifestyle.

Self-labeled a “gold standard” in fitness, the actual Nautilus brand has been around since 1970 when the manufacture first brought strength training to the masses by introducing circuit equipment with Nautilus-shaped cams that controlled muscle resistance across a full range of motion. Today, Nautilus presents a complete line of innovative strength and cardiovascular equipment for club and light commercial use, including treadmills built with legendary Quinton technology. Global headquarters are located in Vancouver, Washington. Dial 1-800-628-8458 for general inquires.

Along with the years of satisfied customers and strong reception, Nautilus has developed confidence with its consumers by managing to offer very good warranties. For example, the Nautilus treadmills T514 and T516 each have very strong coverage with 15/10 years guarantee on frame, 15/10 years motor, 2 years parts and 2/1 year guarantee on electronics. The Nautilus T516 also features 90 days coverage on “wear parts”.

Nautilus promises that if you are not 100% satisfied with your treadmill purchase they will return the product within six weeks of delivery. The policy applies to products purchased directly from Nautilus, Inc and includes Bowflex, Schwinn Fitness, Universal and Nautilus products. Nautilus only accepts returns of merchandise under the following conditions:

  • You must receive a Return Merchandise Authorization Number from Nautilus before shipping the product to us
  • The merchandise must be returned within the Satisfaction Period specified.
  • Products returned without a Return Merchandise Authorization Number will not be refunded or credited and will be discarded
  • Your return must be received no later than two (2) weeks after we have provided your Return Authorization Number (RMA)
  • Products must be returned undamaged in suitable packaging (preferably original cartons)
  • Must be in original condition with all accessories and materials included
  • Refunds do not include shipping and handling fees

It may be possible to cancel your order (prior to receiving the treadmill) by calling Nautilus directly. Once inventory has been allocated to your order, it cannot be canceled.


Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.