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LifeSpan TR1200-DT3 Under Desk Treadmill flat
Office Fitness

LifeSpan TR1200-DT3 Under Desk Treadmill

Top-selling walking treadmill easily converts your standing desk into a workout station. Quiet, sleek and durable – move more while you work with the TR1200-GlowUp

Item # TR1200-DT3
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The TR1200-Glowup is LifesSpan’s top-selling compact walking treadmill that allows you to get your steps in anytime, anywhere. This space-saving treadmill easily converts your existing standing desk into a space to workout. The TR1200-DT3 features upgrades from the TR800 GlowUp like a larger motor, a 2” wider walking belt, and an ultra-low-profile design. Easily track all your stats like steps, time, distance, calories, and speed on the Retro console that fits discreetly on your desktop. With the durable and sleek design, you’ll no longer have to sacrifice your health for work – with the TR1200-GlowUp you get both!


Workout While You Work

With an ultra-sleek design and long-lasting construction, the TR1200-DT3 fits right in with your office décor. Its whisper-quiet 2.25 hp motor means you can walk for miles without disturbing your coworkers or distracting from Zoom calls. With speeds up to 4.0 mph and 6 impact-absorbing shocks to dampen walking noise and minimize unwanted vibrations, you can focus on your work while getting your daily steps in.


  • Whisper-Quiet 2.25 HP Continuous-Duty Motor
  • 6 Impact-Absorbing Shocks Dampen Walking Noise
  • 4 mph to 4.0 mph Walking Speeds
  • Sturdy Construction Supports Up to 350 lbs

Easily Convert Your Desk with LifeSpan’s Treadmill

As easy as 1, 2, 3 –

  1. Unbox your fully assembled walking treadmill
  2. Easily roll the walking treadmill under your desk
  3. Start walking and burn some calories while you work


The compact TR1200-DT3 walking desk treadmill guarantees a perfect fit and easy placement under your standing desk. With a super lower height of 4.6”, this walking treadmill will help you get the optimal ergonomic position from your standing desk.

Safely Step While You Work

Enjoy some of LifeSpan’s most iconic features on this compact walking treadmill. When you’re busy at work, the TR1200-DT3 will keep track of your daily step count with Intelli-Step technology. And easily maintain your safety in the workspace with the integrated Intelli-Guard feature that ensures the treadmill only operates when you are actively walking.

Easy to Read Console

Track all your fitness stats so you can stay focused at work with the tethered console that sits on your desktop. The display will show your distance walked, number of steps, calories burned and time spent walking – talk about maximizing your workday!

Feature Overflow

  • LifeSpan Fitness Club trial membership gives you four months of access to even more great fitness tracking features
  • Bluetooth Integrations

Product Overview


Ideal For
This compact walking treadmill is perfect for anyone wanting to increase their step count while they work. It is designed to fit well in your office with your existing standing desk and features a whisper-quiet motor that will allow you and your coworkers to stay focused while you work out.
Not recommended for athletes over 350 lbs.


Assembled Dimensions
Treadmill: 63" L x 28.5" W x 7.25" H, Console: 12.5” W x 3” D x 2” H
114 lbs
Space Saving Feature
Low height of 4.6” helps this walking treadmill fit into tight spaces and easily roll under your standing desk.
2 Front-mounted wheels for easy mobility


Console Features
Red LED easy to see display, speed settings up to 4.0 mph, distance traveled, calories burned, time, step count, Intelli-Step, Intelli-Guard
Material & Finishing Features
Non-Slip Plastic and Phenolic Deck
Bluetooth connectivity allows you to sync your workout activity and track your progress over time with the LifeSpan Active Track Fitness app
Device Holder


Fully assembled out of the box
Frame: Lifetime, Motor: 3 Years, Parts: 2 Years, Labor: 1 Year
Maintenance Requirements
It is recommended to wipe the treadmill down after each use. Monthly cleaning should include removing the motor cover and cleaning around the motor and electronics. The walking belt should be lubricated every 50 hours or three months.
Service & Repairs
Fitness Town Service offers experienced maintenance and repairs for this product

Compatible Apps

Apple Health
World Walking
Run Keeper
MotionX GPS
Treadmill Workout
Virtual Walk Treadmill

Detailed Specifications

Three-Speed Cooling Fan
Automatically pause the running belt if you step away from the machine
Drive Motor
2.75 HP Continuous Duty DC
Step-Up Height
Folding System
Treadmill:114 lbs., Console: 3 lbs.
Belt Type
Belt Size
20" W x 50" L
Side Rails
Non-Slip Plastic
Max User Weight
350 lbs
3/4” Phenolic
Deck Suspension
6 Independent Compression Shocks
Drive Motor
2.25 HP Continuous Duty Motor
0.5 - 12MPH
Step-Up Height
Belt 4.6 in, Side Rails : 5.25 in
Shipping Dimensions
Single Box: 67" L x 30" W x 9" H
Lifespan Transparent Blue Logo


Fitness Town chose LifeSpan because of our aligned values around breaking down the barriers to movement, their quality product and their upstanding service. LifeSpan is dedicated to benefiting the way people work, exercise, and live in sustainable, healthy ways. Their quality products and innovative vision have inspired fitness and wellness as a way of everyday life since the brand was introduced in 2001. By specializing in solutions created uniquely for the home, gym, workplace, and everywhere in between, LifeSpan is helping to empower individuals to find better health regardless of the setting.

LifeSpan Fitness Brand Image 3
body builder man
women exercising on treadmill

Buyer’s Guide

Why you should bring Office Fitness Equipment to your home or office?

  • Studies show that the way to exercise more is to create environments for exercise in the spaces you are in most. Many of us spend more time in our office than our home and moving while we work has become a health requirement for many in this modern world.
  • With the 2020 shift toward the work-from-home life, many are looking to bring office fitness home.
  • As a company that exists to remove the barriers between you and moving more, we support the movement toward office fitness and can help you get your workspace set up.
  • If you are outfitting a large organization, you may want to speak with our Commercial division. They can assist with commercial grade gym design and workstation mobility equipment for 50+ people. If you’re a small business looking to incorporate office fitness, ask a member of our Retail team about key account pricing.

Buying an Under-Desk Treadmill

Fitness Town has curated a range of quality under-desk treadmills that pass various tests from our team of experts. After decades in the fitness industry, we’ve developed a good understanding of your needs, regardless of age or fitness level. We consider everything like industry standards, diverse physical statures, and training requirements and goals. When you buy a product from Fitness Town, you can feel confident knowing that it lives up to our high standards. All that’s left is finding the perfect match for you.

Here are some things to consider when comparing our under-desk treadmills:

  • Will your treadmill disrupt the office? It’s important to consider the noise level of the treadmill, especially if it will live in an office or a shared working space. The motor, suspension, and construction all impact the level of noise your treadmill produces
  • Is it safe to walk and work? Most under-desk treadmills come with standard safety features to make sure you can get your steps in while you get your work done. Look for things like a quality belt, a walking max speed (example 4 MPH), a safety tether, and an accessible quick stop button.
  • What kind of standing desk do you need? Most under-desk treadmills have a step-up height of 5-6 inches. When considering which desk to pair with your new machine, choose one that accommodates the additional height of the treadmill deck. When you are standing on your treadmill, you will want your arms to be at a right angle and lightly resting on hte top of your desk so you must consider you height.
  • What does your space look like? The best thing about under-treadmill desks is they take up significantly less room than a traditional model. It’s important that your workspace doesn’t feel cluttered, so you’ll want to make sure you have about 4 to 6 feet of room (and some extra clearance) behind your desk to comfortably fit your new machine.
  • Your stride length: Even though you won’t be running on your under-desk treadmill, you’ll still need a treadmill with a belt long enough to accommodate your stride. Users over 6’ will find models that fit their height at our store.
  • What are your training goals? If you want to get some light cardio in, boost your step count, and get your blood moving while you work, this treadmill is perfect for you. If you’re looking to go for a run in the middle of your workday, you might want to consider a traditional treadmill or a fold-away model to accommodate the higher intensity and faster speed.
  • How much horsepower do you need? To make sure your treadmill can keep up, you’ll need a model with at least a 1.5HP motor for continuous use. If you’re over 200lbs, we recommend a machine with a 2.5 Continuous Horsepower motor for a little more oomph.
  • Your weight: Manufacturers post maximum weight limits to keep you safe. It’s important that your under-desk treadmill is stable and can accommodate your weight. If the treadmill wobbles or shifts back and forth during your workout, this not only puts excessive wear and tear on your machine but is also a safety hazard. Check the weight limit on the machine and if you are at the top end, consider a model with a higher limit for your safety. Regular maintenance will help, but it’s important to get the right treadmill for your size.



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Expert Guidance To Help You Choose

Fitness equipment is highly personal and studies show that the right fit has a big impact on your consistency, enjoyment, and success. The Fitness Town Difference is our commitment to fitting you with equipment that will go the distance. We want you to build an environment for fitness that removes barriers and makes it easier for you to move more, at any age and every stage. Let us help you discover what moves you.


LifeSpan TR1200-DT3 Under Desk Treadmill
Great treadmill. Poor console.
Shannon E.
Treadmill is great. To record stats, the console does not connect to phone Bluetooth app 99/100 attempts, and the one time was only for a second.
girl body building


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