Our Ratings are 4.78 Stars out of 5 Stars from 20,483 Reviews as of 5/23/22

Lifespan TR5500i Treadmill Review

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How long will the Lifespan TR5500i last?

The Lifespan TR5500i treadmill is a heavy-duty folding treadmill made of steel that can hold users up to 350 lbs. It is designed for joggers and runners alike and will last many years with proper care and maintenance. Simply unplugging your machine after use will extend the longevity even though Lifespan base warranty on the TR5500i offers a lifetime on the frame and motor, 5 years on parts, and 1 year labor. Purchasers that still require the space saving ability of a folding treadmill will find this model a quality investment for future workout endeavors.

Brief Overview

The Lifespan TR5500i treadmill is a commendable upgrade to the 4000i and offers a new look in the display and a higher power motor along with other commercial grade parts that fit conveniently into any home gym or workout space. It has been built with multiple users in mind and can stand different levels of workout intensities for longer periods of time. It is a first-rate folding treadmill that is budget friendly and designed to hold up to even those users fond of running in their daily exercise regimens.

Overall Quality

The Lifespan TR5500i treadmill is appealing to all levels of fitness enthusiasts and has everything needed for health benefiting cardiovascular workouts. Lifespan has updated the TR5500i with a 4.0 HP CD motor which is powerful enough for serious runners and offers smooth performance and a high speed of 13.5 MPH. This is optimal for sprinting either uphill or down on the 13% incline and -2% decline levels which target intensified workouts on lower body parts. A full 1” deck and 8 shock absorbers offer cushion for joints and a noise muffling feature for those that live with or around others. The Lifespan TR5500i treadmill comes with an updated console that offers a 10” color touchscreen that has 3 alternate display options displaying varying amounts of information. The TR5500i has over 50+ built in workouts and can upload fitness performance after every workout to the Lifespan app helping users achieve optimal fitness levels. Bluetooth also allows integrated speakers to play favorite workout tunes and a USB port is available to charge devices.

Things we like

  • warranty
  • 10” touchscreen
  • upgraded motor
  • large running surface

Things we dislike

  • X
    still lacking in technological features despite numerous upgrades


Belt Size 60"L x 22"W
Drive Motor 4.0 HP Continuous Duty DC
Belt Type 2.2mm Thick Belt
Incline Motor 800 lbs Maximum Lift
Rollers 2.5" Front, 2" Rear
Speed Range 0.5 to 13.5 mph
Incline 13 Levels
Deck Suspension 8 Independent Compression Shocks
Deck 1" Phenolic
Folding System EZfold™
Transport 2 Front-Mounted and 2 Rear-Mounted Wheels for Easy Forward/Backward Mobility and Storage
Side Rails: Non-Slip Plastic Side Rails Provide Balance and Safety while Starting and Stopping the Treadmill Belt
Dimensions: Unfolded: 73"L x 34.5"W x 55.5"H, Folded 40.5"L x 34.5"W x 65.5"H
Step-Up Height 9"
Max. User Weight 350 lbs
Power Requirements Requires a 115V NEMA 5-15 Non GFI Circuit


We invite you to see our other treadmill reviews to help you narrow your search for your next fitness machine.


If you are looking for a quality walking or running machine that is also compact, look no further than the Lifespan TR5500i treadmill. It is a durable folding machine that has quality features and will last for years to come with a simple maintenance schedule. Lifespan is a reputable name in the treadmill world and backs the TR5500i with lifetime warranties. While it is still lacking in hi-tech gadgetry, it still appeals to multiple family users with its optimal functioning ability. The TR5500i is priced in the budget friendly range and is a strong contender in the folding treadmill world.