$599.00  $799.00
In Stock
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Top Features 

ProShox™ Lite Cushioning

Compressing with each step, this cushioning responds evenly to your stride and offers a truly comfortable workout.

Space Saver® Folding Treadmill

To give you more room to stretch, or to stretch the room you have, the deck folds vertically for storage.


Dual-Grip EKG™ Heart Rate Monitor

Make the most out of every workout by monitoring your heart rate with these sensors that are built into the handlebars, ensuring you're always in the right training zone for your goals.


iFit® Compatible

Get smarter workouts and faster results with iFit®*. Featuring workouts Powered by Google Maps™, training with Jillian Michaels and automatic speed and incline controls, this wireless technology is the ultimate workout experience! Now you can customize your own fitness program, receive automatic workout downloads and manage your profile online.
*Requires iFit® wireless adapter. Wireless adapter sold separately.
Google and Google Maps are registered trademarks of Google, Inc. Learn More


Multi-Window LED Display

LED displays are easier to read than LCD's and make keeping track of your workout that much better. This display tracks your speed, time, distance and calories burned so you can monitor your progress throughout your workout.


15 Built-In Workout Apps

Get the workout you want with 15 built-in workout apps. Choose from 5 calorie-burn, 5 timed or 5 distance workouts to get the results you want! The simple navigation of the apps makes it quick and easy to pick your workout and get going!


Compatible Music Port for iPod®

Move to the beat of your favorite music with this built-in sound system. Plug your iPod®*, or MP3 Player, into the Interplay® Music Port for unbeatable sound quality. With the iPod® resting on the console shelf, it's within easy reach and leaves the controls right at your fingertips. * iPod is a trademark of Apple, Inc., registered in the US and other countries. iPod® not included.


Intermix Acoustics™ 2.0

Enjoy your favorite media with this built-in sound system that produces a broad range of frequencies and rich, equalized sound.


Workout Intensity Control

This feature allows you to adjust the intensity of your workout at any time. If you feel like you aren't working hard enough or would like your workout to be a little easier, simply adjust the intensity and the program will automatically adjust to your desired performance level.


Nike + iPod® Compatible

Track your performance with Nike + iPod®! It's the fastest, easiest way to stay in touch with your workout. Simply connect your iPod*, work out and then sync your results online at
iPod is a registered trademark of Apple Inc., registered in the US and other countries. Nike and Cardiomiles are registered trademarks of NIKE, Inc. and its affiliated companies. iPod is for legal or rightholder-authorized copying only. Don't steal music.


ProForm Technology

Find out why ProForm Treadmills run harder, keep cooler and last longer than other brands. See Video



2.25 CHP Mach Z™ Motor

Experience expanded power with this quiet, self-cooling drive system. Employing an axial fan, this motor reduces noise as it cools internal components–enhancing your workout environment and extending the motor's life.

0–10% Quick Incline™

The best and most convenient incline adjustment, Quick Incline™ allows you to change the incline with the single touch of a button instead of tediously scrolling through options as you would with traditional incline controls.

20" x 55" Treadbelt

A vital component of the drive system, this roomy treadmill belt is designed to operate both smoother and quieter than the average treadmill belt.

0–10 MPH QuickSpeed®

QuickSpeed® allows you to instantly change the speed of the treadmill between 0-10 MPH with the single touch of a button.

Weight Capacity

This treadmill accommodates up to 300 lbs.


The ProForm Performance 400 is protected with a Lifetime Frame Warranty, 25-Year Motor Warranty and 1-Year Parts & Labor.


72" L x 35" W x 61.5" H


RudyK, (Albany, NY) on Nov 12, 2010
We Love Both our Proform Products
Very sturdy and free of any trouble so far. Both myself and my wife have both lost over 20 lbs. We love both of our Proform products.
CarrieH, (Waxhaw, NC) on Nov 11, 2010
Very Nice
The purchase and delivery process went very smoothly through Proform. I use my treadmill to walk on....and had another Pro Form for 15 years....when it broke I purchased another.. Very nice, and great for my uses...I walk an hour a day to keep my blood sugar down...
ElaineC, (Bellingham, MA) on Nov 11, 2010
Works Perfectly!
I love the way the treadmill works. It was difficult to put together but works perfectly. I use my treadmill every day and stay on it a lot longer than my previous treadmill. It runs so smooth that I can walk on it for miles!
Joe, (Austin, TX) on Nov 11, 2010
Helping My Family and I Regain our Lives Back!
my son 13 and myself,started it the same day i received it,inclined it and put the speed on 2/ son lost about 10 pounds and his body is and looks strong,and now can even do push ups and never could before, because he was overweight,and i lost man i don't know,but all the pants i had put up cause... (Read more)
Jamie G, (Taylorsville, KY) on Nov 12, 2010
My Third Proform Treadmill!
This is my 3rd time purchasing a ProForm treadmill in 25 years. Very happy with every single purchase!!
Annie S, (San Antonio, TX) on Nov 12, 2010
More Than I Expected
Absolutely happy with the treadmill. It is way more than i expected. I love that i have the convenience of the treadmill at home. I'm losing weight!
James A, (Westminster MA) on Jan 19, 2011
Works Well!
I am a retired stay at home dad with a 14 year old son. This machine helps me stay fit to raise him. The programs are great - the ifit is an awesome addition. No matter your age 14 - 62 it works well.
TRL, (Mars, PA) on Jan 21, 2011
Great Treadmill
LOVE, LOVE the treadmill, but disappointed that the iPod module is not availabe yet; hope it becomes available soon... one of the reasons I purchased. This is my 2nd Proform treadmill. The first one lasted 16 years without any problems. Thanks
daisy1cow, (Iowa) on Feb 20, 2011
Once we got it downstairs (my 16yr old son) and myself, I got it together by myself! Very easy to use and I feel a difference even after three days. I didn't get the pole in underneath so I can't fold up (that was the only trouble I had)Has everything on it I could want without spending big bucks. T... (Read more)
RunningHec, (Tri-Cities, WA) on Dec 5, 2011
Great Value!
I did alot of research on treadmills before I decided on this one. I have been using it for about a week now and I very satisfied with my purchase. There were a couple features that stood out to me: ability to connect your own mp3 player, larger than average belt size, THE WARRANTY! (Look at othe... (Read more)
Celt, (Collierville, Tn) on Dec 20, 2011
Very good machine
Quick shipment. Not too heavy that two people can't get it to whatever room you want. 1 1/2 hours to put together on my own. Would take much less if I had to do it again. This treadmill folds up easily. If it is on carpet do not install the rubber bases as you will not be able to slide it to a cor... (Read more)
massmom, (massachusetts) on Jan 27, 2012
Very difficult to put together
The directions reference parts with numbers however the parts aren't labeled in any way and for some reason they all have zip ties on them. The machine seems to be of good quality and its large but sturdy.
MonkeysMommy2008, (Carrollton, TX) on Feb 3, 2012
Great treadmill!
My husband and I had a Proform Crosswalk that we used for about 12 years and the belt finally tore in half a year or two ago. We decided to replace it with this one about a month ago. The price was excellent, especially with an online coupon code, and it was surprisingly easy to setup (definitely ... (Read more)
coltsfans1984, (Tampa Bay, FL) on Feb 12, 2012
Great for 1st timer & pro's alike!
This is my first treadmill and I have to say it has exceeded my expectations. I looked for months for the right treadmill and I found it with this Performance 400. It is very easy to use, quiet, large display, very good speakers, pre-programmed workouts, and the incline is killer! I use it every day... (Read more)
no nickname please, (Clarksville, TN) on Feb 18, 2012
LOVE the Proform 400
I wrote a mixed review about a year ago when I purchased my Proform 400 CT, but would like to give an update. This treadmill IS quiet, like the other reviewer said, and although a very heavy machine that has to be left in one place, we love it more each day. YES we DO USE IT. We are in our 70's ... (Read more)
FamilyFitness, (Atlanta, GA) on Mar 15, 2012
Happy with purchase
My family of 4 has been using this treadmill for about a month, and we all really like it. It was also easy to put together. It is working well for walking and running. My husband enjoys being able to connect his IPod and listen to music while he is running. I wish it came with 2 keys instead of ... (Read more)
Jan M, (Brooks, KY) on Nov 12, 2010
I had researched online for several months and found that peoples comments were very helpful. I wanted a treadmill that I could fold up, run or walk on, and was quiet enough so that everyone in the room could still hear the TV or talk with me. I really like my treadmill and would highly recommend... (Read more)
eviebarbi, (Oceanside,CA) on May 25, 2011
Perfect Enough
I just got my Pro-Form Performance 400 today. My 1st Box was missing handle bars and the incline did not work, so I got it replaced the same day from the sports store. The Technician assembled it in 30 mins! Wow! It runs Perfect! I run 4.5-6.0. I love it and all the features that I have yet to tr... (Read more)



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