LifeSpan TR4000i Treadmill Review – 2023

Sydney Kaiser

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Last Updated: January 3, 2023

From our experience using treadmills from LifeSpan Fitness, we know them to be functional and straightforward while including thoughtful features. The LifeSpan TR4000i offers precisely that. The console is simple but consists of some tech and Bluetooth connectivity, all while not requiring a subscription to access the built-in workout modes. We love its incline and decline range, and 3.25 HP motor. Another big plus is the folding deck saves a lot of space when you’re not using it. This LifeSpan TR4000i Treadmill spec review delves into everything you need to know as well as sheds some insight into what our team thinks.

LifeSpan TR4000i Treadmill Review 2023

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Why You Should Trust Our Review Of LifeSpan TR4000i Treadmill

We test and use a lot of treadmills. Some included are treadmills from LifeSpan Fitness. Although we haven’t physically tested the TR4000i, we’ve used LifeSpan’s under-desk treadmills, as well as the TR5500i and TR2000e. To compile this spec review, we’re able to draw from our experiences using these models, in addition to our extensive experience reviewing treadmills of all shapes and sizes.


Pros
  • The 7” touch screen has Bluetooth connectivity and built-in workouts that don’t require a subscription to use.
  • The 13 levels of incline and 2 levels of decline help target your muscles for well-rounded training.
  • The 22” x 60” running surface is ideal for all kinds of training.
  • There is a holder for your device to stream whatever you want and play the content through the speakers, and a USB charging port.
  • The 3.25 HP motor should handle walking all the way up to sprinting.
  • The deck folds up to save space.
Cons
  • While the console does have some tech, it seems a bit dated.
  • There isn’t subscription content offered as an option.

FeaturesSpecs
  • Full-color touch screen display with 3 different dashboards
  • Dashboards display: graph view, gauge view, and track view
  • 50+ Onboard workouts
  • Bluetooth connectivity to your device for music and audio
  • Dual Bluetooth speakers
  • Tablet holder
  • 5 Quickset speed and 5 Quickset incline adjustment buttons
  • Contact heart rate sensors
  • Intelli-Guard: automatic pause of the belt after 20 seconds when you step off
  • Intelli-Step: pedometer built-in to automatically count steps
  • USB port
  • FCC certified for safety
  • 7” Touch Screen
  • Footprint: 73” L x 34.5” W x 55.5” H
  • Folded Footprint: 40.5” L x 34.5” W x 65.5” H
  • Weight Capacity: 350 lbs
  • Treadmill Weight: 239.5 lbs
  • Motor: 3.25 HP DC
  • 0.5 – 12 MPH
  • 13 Levels of Incline
  • 2 Levels of Decline
  • Running Surface: 22” x 60”
  • Belt Thickness: 2.2 mm
  • Cushioning: 8 Independent Compression Shocks
  • Step-Up Height: 9”
  • EZfold Deck Folding
  • Warranty: 10 years for the frame, 2 years for parts, and 1 year for labor

LifeSpan Fitness TR4000i Treadmill Spec Review

In-depth LifeSpan TR4000i Treadmill Review

Preprogrammed Workouts

The LifeSpan TR4000i comes with over 50 built-in workout programs. We’re anticipating that these are the same found on the LifeSpan TR5500i. These programs should include fitness tests, heart rate control workouts, and various preprogrammed workouts for goals like weight loss, sport-training, and healthy living. Under these categories, there are specific workouts designed to help achieve those goals. There are also customizable programs and races. There is also a manual mode for you to do your own thing.

Know that these workouts don’t feature an instructor who guides you throughout. Instead, the touch screen offers three different displays for you to follow along with the program and track your workout metrics like time, distance, speed, incline, and heart rate.

The different dashboards show your workout metrics in graph view, gauge view (which kind of looks like a car gauge), and track view. The track view displays an oval track for you to visually see how far you’re going.

I really like that the TR4000i has Intelli-Guard and Intelli-Step. Intelli-Guard is where the treadmill automatically pauses after you step off the deck for 20 seconds or more. This helps keep your time using the treadmill, safe. Intelli-Step counts your steps, in case you’re trying to reach 10,000 or more for the day.

Console

Although the 7” touch screen is slightly smaller than the touch screen on the TR5500i, the console layout is the same. It does have a kind of dated look, especially compared to treadmills with large attached touch screens that look like televisions. Unlike many of these treadmills though, the TR4000i doesn’t require a subscription to access all the content on the touch screen. Based on our experience using the TR5500i, we assume that users will find the TR4000i’s console to be pretty easy to navigate. The screen is a touch screen, but there are also control buttons below the screen.

The numbers are quick-touch adjustment buttons that we love to see on treadmills. This allows you to jump around to different speeds and grades and makes them beneficial for interval training. Even though there aren’t buttons for every speed and grade level, these should still make adjusting the treadmill belt quick and easy.

The speakers are front-facing and Bluetooth enabled to play audio from your device when connected. You should also be able to pair a compatible heart rate tracker through Bluetooth, too. Unfortunately, one isn’t included.

There is a small fan at the bottom of the console. We were surprised by the one on the TR5500i because even though it’s really small, it provides nice airflow. We assume this one will as well.

The tablet holder is a small slot in front of the touch screen that should hold your device securely. Depending on the size of your tablet or if you read a book or magazine while using the TR4000i, the touch screen on the treadmill might be blocked. The two cupholders on either side of the tablet holder and quick-touch buttons should hold a standard water bottle or any small item you might need nearby.

Construction Quality/Durability

If you’re looking for a treadmill that saves space, the TR4000i is one to check out because the deck folds up out of the way when you’re not using the treadmill. In our experience testing and storing treadmills, foldable ones are extremely beneficial. Unless you have a designated space for your treadmill, seeking a folding one like the LifeSpan TR4000i can be very helpful.

The TR4000i has transportation wheels so you can tilt the deck back to engage those wheels when the treadmill is folded.

Frame

I’m impressed that this treadmill can handle users up to 350 lbs, especially at this price point. 400 lbs is usually the highest weight capacity that we see on motorized treadmills. This weight capacity should handle most sized users.

The LifeSpan TR4000i has a steel frame and steel uprights. The uprights connect up to the handles to keep the console steady. Users should find that between the side and front handles, there are plenty of areas to hang on to for balance when needed. The front horizontal handles feature pulse grips that will display your heart rate on the screen when you grip them.

Motor

The motor is also pretty impressive on this machine. The TR4000i has a 3.25 HP motor. We anticipate that users will be able to get a good amount of use out of this treadmill from this motor size.

We can’t speak to how quiet the motor is without actually using it for ourselves, but considering the 2.5 HP motor on the LifeSpan TR2000e is surprisingly quiet, we assume/hope the TR4000i’s is, too.

The TR4000i goes up to 12 mph, which should be plenty of speed for most users, and has 13 levels of incline and 2 levels of decline. The decline might not seem like much, but it can really enhance your training and target your muscles differently. We love when treadmills include a decline.

Treadmill Deck

Considering that the deck folds up, I’m pleased to see that it is plenty large. The deck is 22” wide and 60” long, making it the ideal length for pretty much all users. We’ve found in our testing that this sized running surface can handle all running strides and users of pretty much all heights.

We can’t quite determine how soft or firm the cushioning will be, but this treadmill has the same 8 compression shocks that the TR5500i has, so we assume that the cushioning will provide nice shock absorption for your joints and should feel pretty soft underfoot. However, we can’t know for sure without testing the TR4000i.

Warranty

LifeSpan Fitness includes a 10-year warranty for the frame, a 2-year warranty for parts, and a 1-year warranty for labor. This is on par with the warranties that NordicTrack and ProForm offer with their treadmills.

LifeSpan Fitness TR4000i Treadmill Spec Review

Bottom Line Review: LifeSpan TR4000i Treadmill

The LifeSpan TR4000i has some impressive specs and features. We anticipate that it will compare to the TR5500i in more ways than one. We know treadmills from LifeSpan Fitness to be straightforward and easy to use, with quiet, hearty motors, and large running surfaces. Although we haven’t tested the TR4000i for ourselves (yet), we assume that this is another solid treadmill from LifeSpan’s lineup. It doesn’t require a subscription to access the onboard workouts, and it has a device holder so you can stream whatever you want and play the audio through the treadmill’s speakers. Plus, the deck folds up to save space and we’re pleased with the price of the TR4000i.

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