Previewing the Armour39

April 9, 2013


There's no better feeling than having a successful workout at the gym, one where you push your body to its limits. You can take satisfaction in knowing that you hit that 100th crunch, or ran five miles around the track without stopping short. But quantifying how hard you worked can be difficult. That's where Under Armour's Armour39 comes in.

Armour39 is a performance monitoring system that plugs into a chest strap wrapped around your body. The device provides updates on your heart rate, calories burned and other biometric info, turning all of the data into a WILLpower score—a number between 1 and 10 that gauges your level of exertion. WILLpower takes into account the duration of your workout and your level of intensity, along with your gender, age, weight, max heart rate and more. Your WILLpower score and the rest of your workout data are available in real-time through a downloadable Armour39 app on your phone or watch.

During your workout, the chest strap keeps a firm without jiggling. It's made of a material that wicks away sweat. The device itself holds a charge for nine months, so no worries about checking the battery.

So if you want to find out exactly how much effort you're putting in at the gym, strap on the Armour39 and get moving. Bonus: It makes you look like Iron Man, and who doesn't want that? You can buy the Armour39 module and strap for $150 over at Under Armour's website.

Jordan Zirm
- Jordan Zirm is an Associate Content Director for STACK. After earning his BS in Journalism from the University of Missouri, he spent time writing for...
Jordan Zirm
- Jordan Zirm is an Associate Content Director for STACK. After earning his BS in Journalism from the University of Missouri, he spent time writing for...
Must See
Dwight Howard Stays in the Gym All Night
Views: 4,891,510
Dwyane Wade Leads by Example
Views: 6,753,473
RGIII Talks About His Legacy
Views: 25,614,873

Featured Videos

Abby Wambach's Med Ball Core Workout Views: 187,099
Kevin Love's Cone Hop Basketball Shooting Drill Views: 12,178
Eastbay Path to the Pros Episode 5: Fundamentals Training Views: 220,234
Load More


STACK Fitness

Everything you need to be fitter than ever

STACK Conditioning

Sport-specific conditioning programs

Coaches and Trainers

Tips and advice for coaches and trainers


Latest issues of STACK Magazine


Women's sports workout, nutrition and lifestyle advice


Gaming, entertainment and tech news

Basic Training

Military-style training for athletes


Find the latest news relevant to athletes

Most Popular Videos

Charging Ground Balls With Skip Schumaker
Views: 29,842
Yoga for Athletes: Crow Pose
Views: 3,539,378
Robert Griffin III Pocket Presence QB Drill
Views: 6,865,919
Evan Longoria's Hitting Drills
Views: 9,798,784
Johny Hendricks Workout Overview
Views: 822,554

Load More
More Cool Stuff You'll Like

New Cirrus Yoga Mats Let You Show Team Spirit

Improve Your Batting Average With a One-Handed Bat

A Simple Home Gym Setup and Workout

Your High School Weight Room Is Inadequate

Common Lifting Accessories and What They Do For You

Previewing the Armour39

Pros and Cons of Using a Weightlifting Belt

Weight Room Debate: Should You Wear Lifting Gloves?

A Better Foam Roller: the enso Roller by EvoFit, Reviewed

5 New Game-Changing Fitness Inventions

Embrace Contact in Basketball With This Tool

Spark Motion Takes Baseball Training to the Next Level

You Need These 4 Fitness Training Accessories

VertiMax CEO Mike Wehrell on Life After Football

Best Baseball Equipment for Pitchers

Short on Workout Equipment? Try These Tips

Under Armour's Armour39 Helps Athletes Get Better

Guide to Training on Different Surfaces

Low-Cost Speed Training Gear

A Field Guide to Weird Looking Weightlifting Bars

The Best Home Exercise Equipment For Under $200

Battle-Tested Workout Equipment You Can Make Yourself

Push-Up Equipment That Works

Training Tool: SKLZ Recoil 360

Fitbit Force: They Got it Right

The Best Workout You're Not Doing

The Most Overrated Equipment in the Gym

Mayfield Wildcats Get a New Training Home

Previewing the New Fitbit Flex

One Piece of Home Exercise Equipment Every Athlete Needs

12 Must-Have Items in the Athlete's Gym Bag

3 Specialty Barbells That Build Strength and Size

Spend Less, Get Stronger

6 Ways to a Better High School Weight Room

Short on Workout Equipment? Try These Tips, Part 2

3 Pieces of Inexpensive, Effective Football Training Equipment

Fitbit Surge vs. Charge HR: Which One Is Right for You?

17 Insanely Expensive College Athletic Training Facilities

Show Your Team Pride With a Cirrus Stability Ball

5 Fitness Trackers That Are Worth the Money

Short on Workout Equipment? Try These Tips, Part 3

Nike+ FuelBand Tracks Your Everyday Activity

Basketball Workout: Vary Your Equipment

8 Training Innovations Shaping the Future of Fitness