With X3, you train with GreaterForce to trigger Greater Gains
All you need to build muscle and burn fat is 10 minutes, an X3, and a 3x4 foot workout space.
Over 7,000 5-star reviews from 300,000 people who have switched from weights to X3.
X3 Was Featured In:
Variable Resistance Training System
X3 Fatigues Muscle Faster Than Weights
Weights overload joints and underload muscles, limiting muscle growth. Now, there’s a better way.
With variable resistance training and X3, you mirror your body’s natural strength curve: higher forces in your strong range and lighter forces in the weak range.
Variable resistance is the most effective way to build muscle, and X3 is the most powerful and effective variable resistance training system created.
- More resistance where your body is stronger
- Complete muscle fatigue for greater muscle gains
- Over 600 pounds of available force
- Full-body muscle-building workouts
- Less risk of injury than traditional weights
X3 Was Featured In:
About the Inventor
John Jaquish, PhD, is a Wall Street Journal best-selling author of Weightlifting Is a Waste of Time. He is the inventor of OsteoStrong, a bone-density-building medical device that has reversed osteoporosis for thousands and created more powerful, fracture-resistant athletes across 300 clinics worldwide.
While researching bone density, Dr. John Jaquish discovered a sevenfold difference between the weakest and strongest ranges in weight lifting. The discovery led to the invention of X3, the ultimate muscle-building system.
Dr. Jaquish’s latest invention, X3 Force, adds real-time force tracking and data-driven workouts to X3’s proven variable resistance training methodology.
Dr. Jaquish is also a research professor and a nominee for the National Medal of Science.
Dr. John Jaquish’s 365-Day Transformation
Like many others, Dr. Jaquish spent hours in the gym every week to look moderately fit.
Eventually, he developed a better way of working out after years of injuries and frustration.
In two years, he put on over 45 pounds of muscle simply by training with the X3 system, supplementing his protein intake with Fortagen, and streamlining his diet.
Train Like an Athlete
Trusted by the World’s Best Athletes
Weight lifting causes joint damage and limits strength-building potential. For many elite professional athletes and championship teams, the injury risk is too high—and the returns are too low.
More and more athletes are turning to X3 to build muscle and increase strength. It’s the workout system of choice for football great Terrell Owens, MMA legend Forrest Griffin, and the NBA’s Miami Heat.
Akbar Gbaja-Biamila
NFL
Alex Anzalone
NFL
Andre Drummond
NBA
Cedric McMillan
IFBB Pro Bodybuilding
Dan Cristian
IFBB Pro Bodybuilding
Shawn Baker, MD
World Record Indoor Rowing
Forrest Griffin
Lt Heavyweight Champion & Hall of Fame MMA
Gadiel Micu
NPC Pro Bodybuilding
Jamal Hill
Professional Paralympic Swimming
Terrell Owens
NFL Hall of Fame
Adam Von Rothfelder
MMA
Javon Leake
NFL
Joe Reed
NFL
Tom Mandich
MLB
Trevin Wade
NFL
Nick Hardwick
NFL
Steven Benedict
Professional Sprinter & Olympic Trials Qualifier
Andy Isabella
NFL
Jonas Forsburg
Swedish National Soccer
Juan Thornhill
NFL
Justin Kripps
Olympic Gold Medalist (Canadian Bobsled)
Kessia Mirellys
IFBB Pro Wellness
Kevin Bull
Professional Obstacle Athletics
Miami HEAT
NBA
Tracy Walker
NFL
Trevor Cypress
NPC Pro Bodybuilding
Will Harris
NFL
Wyatt Ray
NFL
10 Minutes is All You Need
Lift Heavier With Less Risk of Injury
A Full Gym Without a Gym
Workout Anywhere
An All-in-One Home Gym
X3 Bar – This Olympic-style bar, made of machined anodized aluminum, has internal bearings to optimize grip, a solid steel center shaft, and stainless steel hooks, allowing you to lift over 600 pounds of force.
Upgrade your X3 Elite to X3 Force to measure your real-time force under variable tension and repetitions, offering a precise view of your exercise performance.
- Custom Engineered Resistance Bands – Includes heavy-duty resistance bands made with 15 latex layers, which can provide over 600 pounds of resistance.
- Heavy Duty Steel Ground Plate – Protects your ankles from high forces produced by X3.
- Exclusive Access to the X3 12-Week Program – With detailed videos covering all aspects of the X3 12-Week Program, you can master each exercise movement to get the most from variable resistance training.
X3 12-Week Workout Program
The X3 12-week workout and nutrition programs are only available for X3 customers. Start this push-pull split routine to build muscle, increase strength, and transform your body. Follow the X3 Program and discover how strong you can be in just 10 minutes a day.
- Guidance on exercise form and technique
- Simple methods for accelerated strength and muscle building
- Science-backed tips on when to exercise and when to rest
- Nutrition programs focused on Muscle Gain, Fat Loss, or for Vegetarians/Vegans
- Help from tens of thousands of X3 users in the X3 Facebook communities
- Optional hypertrophy program focused more on muscle size and bulking
Chest Press
Tricep Press
Overhead Press
Front Squat
Deadlift
Bent Row
Bicep Curl
Calf Raise
Split Squat
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The Ultimate Solution for Maximizing Muscle and Minimizing Body Fat
The X3 Bar is the world’s most effective strength-training device. X3 utilizes the power of variable resistance to build muscle more quickly and effectively than weights, smart gyms, and other home exercise equipment. X3 does what no other home gym can, and at a fraction of the price. See for yourself.
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*With optional X3 configurations: 600+ pounds with X3 Elite Band. X3 Force is required for real-time force tracking and data-driven workout functionality.
X3 Bar Results
X3 Bar Results: Before and After
David Fish
"One year ago, I started using the X3 and I’ve been following the workout program. My midsection has always been a problem area and I am finally starting to get the results I want. I’ve done a lot of other programs with similar or even harder work, but never saw results like this."Alex Naymark
"Since I started X3 about 17 months ago, I’ve completely transformed my body by losing 35 lbs of fat and putting on 12 lbs of lean muscle. I’m still getting leaner while increasing muscle mass. This has been a life-saving workout regimen coming from an injury ridden powerlifting world. X3 is the best workout ever designed for putting on muscle. Thank you, X3 team!"Stephen Heston
"I started X3 at 185 lb and between 12-15% body fat. I am currently at 190 lb and between 7-9% body fat. What I found remarkable about the X3 is that I was able to add pounds of muscle mass while my body fat % saw a steady decrease. All while training MMA full time. When I was hitting the gym to lift weights, I never saw results like that. I use X3 right before I work a heavy bag, and it’s made a BIG difference in strength and performance."Johan Lagerlof
"I was forced into X3. We moved to a house 20 minutes from town, and I wouldn’t have time to train away from home with more kids in my life. I searched for the home training system with the most resistance and found X3. I was still skeptical, but I took a shot and never looked back! This system has what you need to build strength and muscle mass; you will need nothing else!"Dan Quigley
"The X3 Bar has completely transformed my fitness journey, enabling me to achieve incredible results with minimal time commitment. Within a short span, I went from 197 lbs to 180 lbs, while simultaneously reducing my body fat from 22% to around 10%, thanks to its efficient 15-20 minute workouts. Not only has it helped me achieve a more defined physique, but it has also helped significantly improve my performance in obstacle course races, enhancing my strength, grip, and endurance."Aaron Legassie
"I stopped training for over 10 years. I just lost the desire to weight train because of the lengthy sessions with minimal results. I’ve been utilizing X3 for 8 months now. It has changed my life. I’ve lost 117 POUNDS! The program, as-is, is absolutely amazing. I have gained an incredible amount of mass and can see definition in my abs for the first time."Camaron Corr
"I’m 6’4” and thought I was too tall for X3 at first, but I dug in and did the workouts starting 4 years ago….. this is what it rendered! Drill in as uncomfortable as it is at first, and watch your progress!!"Ryan Cauthorn
"Shout out to the full X3 system (Supplements & Equipment), the carnivore lifestyle, and my coach, Daniel Magyar! In just 16.5 months, I’ve lost 104 pounds and dropped my body fat from over 35% to under 18%. This journey has transformed my mindset, lifestyle, and relationship with food. I’ve completely revamped my wardrobe, going from a 44 waist to a 34, and from 2X-3XLT shirts to a Large (sometimes even Medium). My suit jacket size has also reduced from 54L to 43L. Now the real fun begins—LET’S GET SHREDDED! 💪🔥"Bob Olsen
"I’ve pole vaulted my entire life, competed internationally, qualified for the 1980 Olympic Trials, and achieved a best vault of 17’ 8.5". Due to two rotator cuff surgeries, I relied on exercise bands, but they offered limited workouts. At 65, I discovered X3, allowing me to strength train without risking injury. Over the last two years of using X3 as my only resistance training source, I improved my strength, and now, thanks to X3, I’m the USA Track & Field National Masters Champion in the pole vault for ages 65–69."Logan Marsh
"I wanted to lose the baby weight I gained while my girlfriend was pregnant. With a year of a carnivore diet, X3, and increasing my protein intake with Fortagen, I achieved massive muscle gain and lost weight. Now, I weigh in at 145 lbs. I’m thrilled with the progress and aim for 160 lbs!"Mandy Watson
"I lost 25 pounds! I’m really short so it shows incredibly, and with the X3 deadlifts, my hamstrings got bigger and stretched the skin on the back of my legs so I have no more cellulite!"Grant Denham
"Beyond grateful for you (Dr. J) educating the world on variable resistance and the creation of the X3! It’s all I used in my fitness transformation for exercise. I also use fortagen twice daily and eat carnivore. I’ve read your book twice and watched every podcast you’ve done on YouTube. I would always injure myself in the gym and never had consistency. Weightlifting sucks compared to X3!"Rich Ouano
"I’ve been using X3 for just over four years. I haven’t stepped inside of a gym since then. I will NEVER ever go back to free weights again. My life, as well as my physique, have completely transformed. I barely recognize myself in the mirror, and the gains continue, week after week. Thanks so much to Dr. Jaquish for this amazing, life-altering, and life-changing invention!"Mabel Fornos
"I lost 30 pounds of fat in 4 months and gained muscle. My body has transformed. X3 is Amazing! THANK YOU!"Caleb Demmons
"I started at about 190 pounds in March. Today I weighed in at 173. Being light but strong is exactly what I need and x3 has helped me skyrocket my results and training. As a professional parkour athlete, regular weightlifting always left me too sore. With X3, I can lift as heavy as possible and jump right into training afterward. I’m never sore and I perform better. X3 is the perfect supplement to my training."John Cannon
"I had consistent lower back and knee issues prior to X3. After using X3, I have had no injuries or ailments. My starting weight was 278 lbs and my current weight is 243 lbs (I’m 6’10”). I follow the nutrition protocol discussed in the book and strive to hit complete exhaustion on every workout with good form and repetitions."Martin Vida
"It’s been 8.5 months since I started my journey with X3 bar. I’m down from 255 lbs and 35% bf to currently 220 lbs and 15% bf. Definitely the best investment I have ever made. X3, OMAD, and carnivore has become my lifestyle!"Ted Radkoff
"An inch up on my arms, 6 inches down in my waist: seven months. This is far surpassed my expectations. Never picking up a weight again."Dan Rodriguez
"I followed Dr. Jaquish’s protocol, and used only the X3. I lost 2 inches around my waist and my weight stayed the same."Patrick Tims
"I’m Active Duty and have to maintain a certain level of conditioning for my annual physical fitness test. With X3 I’ve seen an increase in muscle mass and toning. In 8 months, my waist went from 35 to 31 and my run, definitely feels easier to do since my legs are stronger."Keith Bout
"Best shape of my life, and I am in my 40’s. The X3 is super efficient. Not only do I use it, but I have the football team I coach using it too. Amazing results."Todd Stratton
"In 6 months, I gained 20 pounds of muscle and lost body fat at the same time, which was unexpected. X3 is fantastic."George Hayworth
"The results are outstanding but the other really surprising thing for me was how X3 hasn’t aggravated my existing injuries. In many ways it has rehabilitated them. I also went from 32 waist to 29-30 waist but had to have most of my pants tailored to be let out to make room for my bigger glutes."Tim Bertrand
"In 12 weeks: Arms 5/8 bigger. Chest 7/8 bigger. Only worked out 10 min-ish per day. X3 is super efficient, and more effective than weight training. I am getting better results with this than with the 2 hour per day program I was on before."Eric Bourgeois
"My results in a year. I am a first responder so keeping fit is required, and now I am stronger and better conditioned than I ever imagined I could be. I liked the X3, but couldn’t understand the price. I started using just regular bands, but realized if I wanted to do meaningful strength training, the bands alone were hurting my wrists and ankles. NOW I understood X3 and pulled the trigger. Best decision I ever made."Jason Young
"In 15 months, I have gained 35 pounds of muscle using just X3 while maintaining the same body fat. I was always a hard gainer with weights, and hardly got any results. X3 changed everything."Michael Patterson
"In 90 days, worked through a few lingering injuries, lost 13 lbs of fat, and gained 18 lbs of muscle, and still gaining. Since watching my transformation, 4 of my friends have purchased X3s as well. Super happy with this thing!"Thomas Kilcullen
"6 months with X3 only, and I look and feel completely different. Never going back to weights."Bill Broadway
"I swapped over 20 lbs of body fat for lean muscle in 12 weeks using X3 ONLY. My advice for others, follow the program to the letter. Do NOT deviate, and don’t add other stuff. Dr. J did this right."Brett Delaney
"My X3 is literally my favorite thing I own. In 9 months, I increased lung capacity, dropped 9 pounds of body fat, and added over 22 pounds of muscle. I’m now sitting comfortably around 9-10% body fat."Sean Williams
"In two months, I have seen fat loss, muscle gains, and definition. I love the accessibility of the product. My wife loves it too and she is also happy with her results. Adding to that, it has helped me in my job because it involves heavy lifting. The little time invested has yielded INCREDIBLE results!"Sherry Waldman
"8 months of X3 and I have almost doubled my strength in every movement. My results are incredible."Matt Schweitzer
"Best piece of workout equipment I’ve ever used. Massive strength gains, noticeable aesthetic changes in 4-5 weeks. The amount of muscle and lean mass is better than advertised. My DEXA and the mirror reflect massive changes."Maykell Lorenzo
"I received greater gains from X3 in 11 weeks than in 20 years of lifting. I owned $10k of exercise equipment and sold it all now that I have my X3. Best device EVER for gaining muscle and losing body fat."Rey Descalso
"With weights, each injury meant 3 to 4 weeks of no exercise and reversal of any progress. I’ve had no injuries using the X3 even though the intensity of my workouts has increased exponentially. I used to walk around at 210. Now I’m 195. I can’t believe how good my body looks and feels. More muscular, more vascular, more flexible, and looking forward to the next x3 workout."Raj Jayarama, MD
"I am a physician and not only have my results been incredible, but I recommend X3 to my patients as well."Greg Williams
"I’ve been noticing some pretty drastic results after only a month of X3. Before using the X3, I weighed about 270 lbs. After a month of using it, I weigh 235 lbs Feeling pretty good so far."Terrell Rainey
"X3 put 20 pounds of muscle on me in 24 weeks. I am on the road for work all the time, and by using X3, I have no compromise, better results than with weights, and I can do my workout ANYWHERE!"Jeff Huguet
"Got my X3 in March. Been using it now for 8 months (the before pic is about 1 1/2 years ago). I’m 53 years old folks! X3 works. Plain and simple."Sabian Beard
"In the four months since I started X3 and adopted intermittent fasting, I’ve cut from 188 pounds at 12% body fat to 173 pounds at 7% body fat. I also sleep better and have better recovery. I’ve about doubled my vertical jump for football and ultimate frisbee, and even improved my running performance without any cardio work!"Brandon Witters
"Leaner and 30% stronger in all lifts on average. Strength gains even translate to weight lifting, though now I am 100% X3 for training."Scott Blasz
"I am 51, and 5’ 9. I was injured on the job and lifting weights was not an option. When I started using the X3, I weighed 247 pounds, and was 45-50% body fat. Now, 5 months later, I weigh 193 pounds and I’m about 19-23% body fat."
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Measure Your Real-Time Force by Upgrading X3 to X3 Force
X3 Force, an optional upgrade from X3 Elite, quantifies the intensity of every rep, calculates time under variable tension, and helps you improve overall workout quality. Use live Total Force measurements to unlock unparalleled training insights.
- View real-time force data across different rep cadences
- Improve rep consistency
- Compete against your previous Total Force
Maximize Your Muscle Growth With X3 Force
Choose X3 Force, and with every workout, you’ll challenge your past performance, tracking your Total Force rating. This dynamic metric harnesses real-time force data to measure both the time under variable tension and the overall quality of your workout. This data ensures you’re constantly optimizing your training to stimulate maximum growth.
- Real-time Force Tracking
- X3 Force measures your real-time time under variable tension and repetitions, offering a comprehensive view of your exercise performance.
- Total Force Rating
- Your ultimate performance metric, calculated by combining force sensor data with time and rep count information. It will help you quantify exercise difficulty and quality to watch your progress.
- Data-driven workouts
- With X3 Force, you'll access data-driven workouts that empower you to push your limits and achieve superior results. Each session will help you compete with your previous Total Force, ensuring you're always stimulating more growth.
- Measure Your Progress
- By improving your Total Force for each exercise you'll confirm that you are maximizing your results and getting the most out of your time spent working out.
A smarter way to train
Watch Your Strength Grow
X3 Force seamlessly merges data from force sensors with detailed information on exercise duration and repetition counts to compute a comprehensive Total Force measurement. This is an invaluable tool for assessing the intensity and effectiveness of each workout and making it easier to monitor progress.
Connect to your phone or tablet
The X3 Force App works with iOS and Android devices, including streaming to Apple TV.
Quantify overall workout quality
Prioritizing enhancements in your Total Force for every exercise is a surefire method to verify that you're achieving peak results and staying true to the proven X3 approach.
Track individual exercise momentum
Closely track your journey and witness your steady improvement over time with the ability to review your progress in specific exercises ensuring you're on the path to achieving your fitness goals.
Monitor your progress
Watch your strength increase faster than you ever thought possible with your data in the X3 Force app.
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X3 Elite Home Gym
X3® Elite Home Gym
X3® Force Home Gym
Build muscle faster with the X3 Bar Elite home gym. X3 uses variable resistance to drive tremendous strength gains without damaging joints.
- Greater strength and muscle gains in just 10 minutes a day
- Complete home gym system with over 600 pounds of available force
- Easy to follow X3 12-Week Program, proven to help you grow muscle faster than free weights
Product Options
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399
$
549
Save $150Buy with Affirm on orders over $50. See if you qualify.
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Ready For The
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X3® Force Smart Gym
X3 Force Smart Home Gym
X3® Elite Home Gym
$
399
$
549
Save $150Buy with Affirm on orders over $50. See if you qualify.