ProForm Performance 400i Treadmill Review [February 2023]

ProForm Performance 400i Treadmill​

Built For Runners Who Want: iFit integrated technology on a sturdy folding treadmill. It is suitable for joggers and light runners.

  • Max speed of 10mph.
  • 50 onboard workouts.
  • Foldable design.
  • 0-10% incline for hills and glute work.
  • Small touchscreen that fits nicely in the console.
  • High-grade treadmill at a lower price.

Update: This model has been discontinued. For a similar machine, check out the ProForm Pro 2000.

It is an excellent treadmill for walkers and joggers. It is a low budget treadmill that is renewed from the original Proform Performance 400 series.

Its design and innovative features cater to that class of exercisers be a great choice for dedicated walkers, seniors, or rehab.

This Proform Smart Performance 400i Treadmill has been updated with an iFit Bluetooth smart enabled console and integrated table holder that make it a very great deal.

It offers 50 built-in sessions and thousands of available on-demand trainer-led videos via the iFit app.

ProForm Performance 400i Treadmill Review: First Impressions​

ProForm Performance 400i Treadmill Specifications
Motor2.5 CHP Mach Z
Running Area18″ x 50″
Top Speed10 MPH
Weight Capacity300 lbs
Dimensions65.77″ L x 32.75″ W x 56.42″ H
Preset Programs50
Heart Rate MonitorEKG Grip Pulse Sensor
Warranty10 yrs (Frame), 5 yrs (Motor Warranty), 1 year (other parts & labor)

Reasons To Buy

  • Audio auxiliary port with 2-inch speakers.
  • iFit enabled.
  • Space saving design.
  • East to assemble.
  • Performs quiet operations.
  • Excellent cushioning with two suspension cells on each side.
  • Sturdy frame construction.
  • Folds for storage.
  • Two Speakers.

Reasons To Avoid

  • Not suitable for serious runners.
  • No wireless heart rate monitoring.

Proform Smart Performance 400i: Detailed Specifications​

This Proform Smart Performance treadmill is a strong machine for walkers. It is best suited for senior those who have no intention of running. It comes with a 7″ HD touchscreen display that is large enough to see your workout statistics and is enabled with iFit Coach.


  • 25 CHP Mach Z Motor: It is a powerful motor adequate for light joggers and walkers. It creates high levels of inertia for a smooth, powerful feel and promises a quiet-in home experience.
  • ProShox Cushioning: It absorbs up to 20 % of your workout impact that results in less pain during long workouts and training.
  • 7″ Smart HD Touchscreen: Its 7″ display screen is large enough to swipe through to view your stats and follow the 50 workout programs. It offers a clean, crisp view of the trainer-led on-demand videos or the landscapes from around the world that you may choose to walk on.
  • Preset Workout Programs: Proform is providing a built-in 50 workouts, which are designed by a certified personal trainer. Preset inclines, speeds, and time will help you reach your maximum performance.
  • Speakers with MP3 Input: You can enjoy music while you workout. These speakers have decent quality.
  • Weight Capacity: The weight limit of 300 pounds means just about anyone will conveniently use the 400i.
  • Space Saver: It is on the smaller side of residential treadmills. Measures only 35.5″ wide and 73.25″ long, it can fit into tight home spaces.
  • Tablet Holder: It features an integrated tablet holder above the display that holds your tablet or mobile phone in place.
  • QuickControl Buttons: There are buttons for both speed and incline on the console. It makes moving between speed settings easy with just the touch of a button.


proform performance 400 i design

This treadmill machine is designed to see the world while you run through cities. It is great for all beginning levels of training and at the touch, you can add intensity to any workout speed with digital Quickspeed and quick incline controls.

Frame: Its frame is sturdy, and the machine rests snugly on the floor while in use. Also, the uprights angle aft slightly to bring the console closer to the user.

Its deck sits up off the floor that increases step on the height just a bit but adds travel below for improved cushioning.

Deck: This treadmill doesn’t have the most cushioned deck, but it is a bit better than running outside. Its ProShox system is created to add gentle cushioning as required but still be light enough to fold up.

It measures 18″ wide and 50″ long, that makes it compact. Usually, other treadmills range up to 22″ wide and 60 inches long, so this one is perfect for smaller users or those who want it for light running.

Belt and Rollers: The tread belt and rollers work well, so the running surface glides nicely underfoot. Its belt can get a little slick if you have wet shoes or sweat a lot, so keep an eye on your footing as required.

Motor: Its motor is a 2.0 CHP. This small motor can be a reward for those who want a quietly running treadmill. Also, it has smooth action and transitions speed. It is best suited for brisk walking, jogging at high speeds, or for long periods.


It is the most affordable treadmill and basically constructed for walkers. It provides integrated grip sensors to give an estimate of your pulse as you exercise and feels very enjoyable as well as an immersive Workout experience.

ProShox Cushioning

proform performance comfort

This cushioning called ProShox. It is standard on proForm’s performance line. It is not as soft as the cushioning found in other expensive treadmills but certainly better than running on outdoor surfaces.

This ProForm Treadmill reduces the shock on your spine and joints and absorbs up to 20% of your workout impact that results in less pain during long workouts and training.

Tablet Holder 

The screen is small, the tablet holder becomes more durable. You can set a tablet or phone in this holder and the clip at the top keeps it secure. This allows you to watch a program, listen to music and podcast or even read a book while on your treadmill.

Preset Workouts Programs​

Proform Performance 600i Preset

It offers a vast library of workout programs to work with to raise your walking strength and fitness. The 400i comes with 50 in-built programs featuring high intensity, speed, calorie burn, incline, and mixed workouts.

In addition to these programs, through the iFit Coach app, you’ll have access to trainer videos from landscapes around the world to indoor studios. It’ll have you getting you on and off the treadmill.

This iFit configured treadmill syncs with the elevation of the various terrains that you can select anywhere in the world via Google Maps.


The console on this treadmill is top-notch. It allows you to connect your iPod so you can listen to your favorite music.

ProForm Console

Its 18 inbuilt programs are specially designed to burn fat or to improve your cardiovascular fitness.


It features a 7″ full-color touchscreen that is very unusual for a treadmill in this price tag. It is designed to showcase the full iFit database. You can watch a lot of different classes on this screen.


The layout on the Performance 400i console is great.

  • Its screen sits at eye level in the center with incline and speed buttons just underneath.
  • Each speed and incline has a button.
  • Therefore it is easy to navigate from one level to another.
  • Its button isn’t raised, so it is easy to navigate from one level to another quickly.
  • There are speakers on either side of the console project iFit volume.
  • It also features an AUX port so you can plug your mobile phone into the speakers.


There are two water bottle holders on either side of the console. It also has a pocket at the base of the console.


This treadmill is perfect for walking. Its incline level allows you to add variables to your training. It also engages additional muscle groups. The 10mph is enough speed for any walking program. However, when running, it feels a little light underfoot. Whereas, the cushioning isn’t sufficient for heavy training.

ProForm Performance Series Treadmill


It has an incline range of 0-10%. As the performance 400i is primarily a walking treadmill than other treadmill reviews.

When working an incline, you engage glutes and hamstrings to get a more well-rounded workout. It also allows you to get your heart rate up but stay low-impact when you walk quickly uphill.

Noise Level

This machine is quiet when walking. It generates a little of impact noise when running, but it isn’t suitable for running long distances or periods.


This treadmill folds up and locks into place when not in use. It makes it ideal for spaces like apartments or small areas.

Setup Process

For assembly of this treadmill, it has got screws and bolts that need to be fixed. It also provides an Allen wrench to help, but you’ll also require your own tools to complete the process. It takes an hour to assemble completely.

Final Verdict​

It is an entry-level model that includes some hi-tech, innovative features. It offers 10% incline and 10 mph max speed on a foldable treadmill.

With a cushioned deck, EKG heart rate sensors in the grip bar, you can get some low impact training on an affordable machine with the 400i. It is suitable for rehab and those who just want to have the option to walk indoors.

Frequently Asked Questions​

1. How many preset programs does Smart Performance 400i have?

You get 50 built-in workouts designed by certified trainers. Its preset speeds, time, and incline will help you reach your maximum performance.

2. How can you play music on the 400i treadmill?

You can enjoy music while you workout with this 400i. It features a sound system on the console of decent quality. You can plug in your iPod using AUX directly into the machine.

3. Does Proform offer any guarantee on this treadmill?

ProForm provides a 30-day money-back guarantee on this treadmill. Moreover, it offers a lifetime warranty on frame, and 1-year for the parts and labor charges.

Nisha Batel
Nisha Batel

About the author

Nisha Batel is a senior staff writer at Fierce Running, where she covers various types of fitness equipment. Nisha believes that every runner is different and needs a program designed around their life and their goals. That’s why she is sharing expert reviews and running tips, all of which are geared to help. She is always ready to try new things and share them here.
After her first race (a half marathon in 2009), she found a new deep sense of pride within herself and wanted to feel that every day. So she started giving her time to keep herself healthy. She believes that staying fit is the key to a happy and fruitful life.
Along with this, she loves to do healthy cooking, swimming, and meditation. Exploring various platforms for blog writing is one of her passion. She also loves to design indoor and outdoor spaces. In her free time, when she’s not writing, she enjoys watching movies, exploring different places with her beloved husband.