LifeSpan TR4000i Treadmill Review

Last Updated on May 24, 2021 by Jeff

LifeSpan TR4000i Folding Treadmill ReviewTreadmill Overview:

Rated the best treadmill by Health Magazine and featured in Runner’s World, the LifeSpan TR4000i Folding Treadmill is a solid, durable and stable treadmill that supports serious runners. The 20”x60” running surface is supported by a 1” deck and 8 compression shock absorbers to provide cushioning that is safe for your knees, back and joints. To help track your workout, this treadmill automatically records your exercise data to a USB device. After your workout, simply upload your data to the Club, a comprehensive online health management program. The LifeSpan TR4000i Folding Treadmill comes with a free membership into this program.

Click here to see the price of the LifeSpan TR4000i Treadmill on Amazon.

Technical Info:


  • Height: 55”
  • Width: 33”
  • Length: 74.25”
  • Running surface: 20”x60”
  • Item weight: 232 lbs
  • Max user weight: 350 lbs

Features:LifeSpan TR4000i Folding Treadmill

  • 3.25 continuous duty HP motor powers this treadmill from 0.5 to 12 mph and 800 lbs maximum lift power for the 15 levels of incline.
  • The spacious running surface is 20”x60” and can accommodate extra-long strides. The coarse textured, 2.8mm thick orthopedic belt and 8 compression shocks provide support, cushioning and excellent traction for more serious runners.
  • Intelli-KeyTM simplifies console operation with sequential button illumination that prompts you through program selection and setup.
  • Intelli-StepTM counting feature works like a pedometer, automatically counting steps.
  • Intelli-GuardTM safety feature automatically pauses the belt if you step off during your workout. If there is no foot strike detected for 20 seconds, the treadmill will automatically pause until you return and resume activity.
  • EZfoldTM deck design for space saving application and easy storage.
  • Heart rate monitoring through sensors and chest strap (included).
  • A full member hip in LifeSpan Club is included. This is a one-stop shop for all of your health and fitness information. The account securely connects with your treadmill’s built-in USB port to collect all of your exercise data. Your Club membership also keeps your treadmill’s console updated with your name, age and weight to correctly calculate calories burned.

LifeSpan TR4000i Treadmill ReviewComputer Features:

  • Multi-color LCS with simultaneous readouts, exercise program name and profile and personal data from a USB device.
  • Large soft-touch keys get you started at a specific speed and incline level.
  • 21 built-in programs
  • 2 Heart rate
  • 2 Customized
  • 17 Preset
  • 5 Weight management
  • 5 Healthy living
  • 7 Sports training
  • Display readouts include:
    • Time
    • Calories
    • Distance
    • Steps
    • Heart rate
    • Speed
    • Incline level

Warranty:LifeSpan TR4000i Treadmill

  • Frame: Lifetime
  • Motor: Lifetime
  • Parts: 5 yr
  • Labor: 1 yr

Shipping and Assembly:

Shipping costs will vary for the TR4000i Folding Treadmill depending on where you purchase from and what type of delivery you prefer. However, some retailers, such as, will provide free shipping.

The treadmill comes partially assembled, including the deck. That makes final assembly very easy and straight forward using the user manual provided by LifeSpan. All of the necessary tools are also provided with the packaging. Assembly can be complete in as quickly as 30 minutes.

What We Love About the LifeSpan TR4000i Folding Treadmill:

Workout Tracking

The LifeSpan TR4000i Treadmill has a nice computer with some really good features. For example, there are 17 preset workouts and 21 programs in all. That’s a pretty good variety at this price point. The best feature has to be that LifeSpan throws in a membership to the LifeSpan Club. This allows to user to transfer workout data from the treadmill using a USB to the online program. This lets the user track their progress from workout to workout.

LifeSpan TR4000i ReviewWhat Isn’t So Great:


The most concerning complaint we found about the LifeSpan TR4000i Folding Treadmill is the large number of reports from users saying that they received static shocks. A complaint or two may be discountable, but there are too many for this treadmill to just overlook. Some people blame the footwear of the user, others blame the design. Whatever the reason, it’s concerning.

Final Word on the LifeSpan TR4000i Treadmill:

The LifeSpan TR4000i Folding Treadmill retails for almost $2,500, but you can find it online for under $1,800…that’s a pretty good discount. You won’t be disappointed with this treadmill. It is a quality high-end treadmill, with a strong motor, good speed and incline and some really nice safety features. Our favorite feature on the LifeSpan TR4000i Treadmill is the ability to use the online LifeSpan Club to track your workout data. Highly recommended.