Updated: 09/12/2017

Flex Belt Review - Does This Muscle Stimulation Work?

By Summer Banks Sep 19, 2017

The Flex Belt offers “patented EMS [electric muscle stimulation] …technology” that effectively works to tone and tighten abdominal muscles in just 30 minutes a day. You can use it anytime and anywhere, so no more worrying about space or time. Simply slip it around your waist and you’re on your way to a stronger midsection.

This technology is far and above the competition. It is the first of its kind to be cleared by the FDA to firm, tone and strengthen stomach muscles. That’s right – science is there to back up the Flex Belt 100%.

Check out an amazing demo of the Flex Belt in action.

Will you really feel it working? The intensity levels of the Flex Belt range from 1 to 150. You start out low and gradually work your way up. When you reach the higher intensity levels, you will feel sore stomach muscles the next day just as you would if you completed hundreds of crunches or sit-ups. We have to say, this is probably the most awesome technology we’ve reviewed – ever!

Flex Belt Readers: Click here to find out why we're giving away samples of our product, Pronabolin.

Medical-Grade Technology That Works

This is where the science of the Flex Belt comes into play. What does it mean to be FDA-cleared? It means that the company behind the technology was required to prove the EMS unit worked. But, not everyone has faith in this fact, so let’s look at the clinical results.

According to a study published in the Journal of Sports Science and Medicine, “Strength improved by an average of 34% after 4 weeks and increased another 24% in the subsequent 4-week period.” You clearly don’t have to do a thousand crunches to get stronger abs.

The study went on to report, “For abdominal endurance, the stimulation group had a 100% increase in curl-up performance.” Reductions in waist circumference and abdominal circumference were also noted.

There are also studies in the Journal of Orthopaedic and Sports Physical Therapy, Archives of Physical Medicine and Rehabilitation, the journal Thorax, the journal Sports Medicine and the journal Medicine and Science in Sports and Exercise that show the benefits of EMS.

Risk-Free, Money-Back Guarantee

The Flex Belt promises to work in four to eight weeks. To prove this, the company offers a 60-day money-back guarantee. So, you have clinically tested and proven technology that doctors have researched and the FDA has cleared that you can use without risk. There’s absolutely no reason to skip this offer – it’s a win-win situation.

We honestly don’t think professional athletes and major magazines would stand behind a product if it wasn’t worth a try. Trials and challenges have been completed by Marie Claire and Cosmopolitan magazines. Jill Wade, former Ms. Universe Figure; Brain Wade, athlete, trainer and model; Jerry Rice, an all-star from the San Francisco 49ers; and Janet Evans, Olympic gold medalist and World Record holder have all used, loved and supported the Flex Belt over the years.

Click here to read testimonials and experiences on the Flex Belt official website.

How Does the Flex Belt Work?

There are three medical-grade gel pads that you place on the abdominal muscles and external obliques. An electric current goes to the pads and this contracts the muscles in a smooth, comfortable manner. You will feel the tension (it lasts only a few seconds) and the gentle release. There’s nothing painful or irritating about the process.

What About Results?

The company guarantees results with the Flex Belt within weeks, but that’s not enough. 100% of users report a firmer, more toned stomach with just 30 minutes of usage, five days a week. 49% noticed an increase in strength and 72% saw a boost in endurance. The best part is you don’t have to pack up and head off to the gym. You just wrap it around your waist, wait 30 minutes and that’s it.

Flex Belt Vs. Contour Belt

We’ve been asked time and again, “What’s the difference between the Flex Belt and Contour Ab Belt?” That’s an excellent question.


  • Flex Belt: 4 Gel Pads, Free 1 Year Magazine Subscription
  • Contour Belt: 4 Gel Pads

Money Back Guarantee:

  • Flex Belt: 60 days
  • Contour Belt: 30 days


  • Flex Belt: Two years
  • Contour Belt: One year

Auto-Ship Products:

  • Flex Belt: No
  • Contour Belt: Yes


  • Flex Belt: Rechargeable
  • Contour Belt: 4 AAA batteries

The comparison makes it simple to choose the Flex Belt over the Contour Belt. It’s just a better value and that’s why it’s our top choice.

Click here to see the demo videos of the Flex Belt in action.

How Much Does It Cost?

You’ll pay $199 for one Flex Belt. This is a VERY affordable price for a clinically-tested, FDA-cleared product. Plus, you have that 100% money-back guarantee. Want to order one for a spouse or loved one? With each additional belt you get a 25% discount. That means you only pay $149 after the first one.

  • 1 Flex Belt = $199.99
  • 2 Flex Belts = $349 (save $50)
  • 3 Flex Belts = $499.99 (save $100)
  • 4 Flex Belts = $649.99 (save $150)

This savings isn’t just limited to family. You can partner up with a workout buddy and split the savings. That means you both save money and get the proven benefits of the Flex Belt.

Stunning Website

We absolutely LOVE the Flex Belt website. All of the information is provided in an easy-to-read manner and the images are visually stunning. You get all the facts without any of the distraction. You can also check out the amazing Flex Belt reviews and testimonials from real people just like you.

The Flex Belt has the support of celebrities, athletes, models, and fitness professionals. It’s been reviewed in major magazines like Flex Magazine, Glamour and Cosmopolitan. As a matter of fact, the website is sponsored by Flex & Fitness magazines and you get a FREE one-year subscription if you want it.

Click here to check out the official website for yourself – you can’t miss out on this one!


  • Proven to tighten, tone and strengthen abs.
  • Cleared by the FDA.
  • Qualifies as a medical-grade device.
  • 60-day money-back guarantee.
  • Two-year extended, replacement warranty.
  • Rechargeable batteries.
  • Clinical support via studies completed by doctors.


  • You only have 60 days to try it out.
  • You cannot return the Flex Belt if you don’t order from the official website.

Is the Flex Belt Worth the Money?

The Flex Belt has everything going for it. You don’t have to work for hours in the gym. You can eliminate the blood, sweat and tears from your workout. It fits into your busy lifestyle and only requires 30 minutes, five days a week. AND, the price is affordable. Not to mention, there is a 100% money-back guarantee.

Want ease of use? You can tackle your abdominal exercises with the Flex Belt while watching TV, reading, cooking dinner or doing chores around the house. You don’t have to set aside free time just to tone and tighten.

We recommend taking advantage of the Flex Belt guarantee right away. You have nothing to lose, but you can gain tighter, stronger stomach muscles in just 30 minutes.

Click here to visit the official website and get yours – you won’t be disappointed.

Previous Flex Belt Review (Updated May 16, 2015):

What You Should Know

The Flex Belt Abdominal Toning Belt is truly an awesome advance in technology. This device is by far the most effective we have ever seen of its kind. It makes it so that anyone can exercise their abs anywhere and anytime and it does all the work for you. You can use it at work, around the house, while taking a walk, while exercising, watching TV etc. The results are astonishing. The Flex Belt is not a gimmick – it is 100% medical science. It is the first EMS (Electric Muscle Stimulation) product of its kind cleared by the FDA as a class II medical device for direct to consumer sales. You can see an amazing demo of the product by clicking here. For consumers who don’t have the time to exercise or for those that may have tried to flatten and tone their stomachs through traditional exercise, this product is precisely what they’ve been looking for. It is also great for people that are in awesome shape and already have a great stomach – it will help make it more strong and defined. The intensity goes from level 1-100. With continued use and as you get stronger, you will increase the intensity. If you run the belt on a high intensity, you will feel your stomach muscles sore the next day just like you would after an intense abdominal workout at the gym. This is probably the coolest, most advanced product we have ever reviewed.

Product Features

The Flex Belt is an innovative, medical-grade technology with the extraordinary ability to help sculpt a firmer, stronger and more toned abdominal area without painful, repetitive exercise routines. The makers of Flex Belt are a medical device company headquartered in Galway, Ireland with 40 years expertise designing, manufacturing and marketing EMS (Electric Muscle Stimulation) devices for medical and consumer use. Their EMS medical devices are used and prescribed in 5000 clinics worldwide. In fact, this is the same technology that physical therapists use for their patients that need certain muscles exercised. This product consists of a precisely engineered, ergonomically designed training belt that helps tone the central abdominal muscles and obliques for the flat stomach or ‘six-pack’ we all dream of. The company is so confident in the amazing results achieved with this groundbreaking product that they offer a full 60 money back guarantee – so this is no-lose situation satisfaction guarantee policy. We don’t think an awesome athlete and legend like Jerry Rice of the San Francisco 49ers would back the product and use it himself if it didn’t work…you can see a video clip of Jerry wearing belt on the official website – click here to go to official flexbelt website.ConceptHere's how it works: The unique construction of the Flex Belt features three pre-positioned, medical-grade Gel Pads, covering the central abdominal muscles and external obliques. Signals from the belt reach out to nerves where they are most concentrated. These nerves branch out to reach all the abdominal muscles (not just those under the pads) causing them to relax and contract naturally, working all the muscles at the same time. When wearing The Flex Belt, you will feel a mild pulsing sensation, followed by some tightening of the abdominal muscles. The muscles should contract smoothly, hold themselves in a tensed position for a few seconds and gently relax again. It is never uncomfortable – but always apparent. You control how powerful the sensations are with the intensity controller. The intensity goes from level 1-100. If you run the belt on a high intensity, you will feel your stomach muscles sore the next day just like you would after an intense abdominal workout at the gym. The end result is that all the muscles are worked at the same time, and no sit-ups or crunches are needed. The makers of The Flex Belt guarantee results within weeks of using the system and 100% of users have reported more toned and firmer abs. All that is required is a mere 30 minutes a day, five days a week. The best part is that this 30-minute exercise doesn’t have to be in a gym, and it doesn’t have to take any time out of your day. This belt can be worn any time, allowing consumers to tighten their abs during almost any normal activity. The system is great for people of all lifestyles including casual exercisers, fitness enthusiasts, seniors, new mothers and even people with physical limitations. The belt helps everyone and all should benefit from this simple system.Click here to learn more about this awesome advancement in the world of fitness. For consumers who don’t have the time to exercise or for those that may have tried to flatten and tone their stomachs through traditional exercise, this product is precisely what they’ve been looking for. It is also great for people that are in awesome shape and already have a great stomach – it will help make it stronger and more defined. Its ability to precisely target the appropriate muscle groups is nothing short of amazing, and has opened the door to a new era in fitness. Not to mention that for those consumers who may be limited in their ability to perform strenuous exercises like sit-ups or crunches, this ergonomic approach is ideal. Consumers can incorporate this exercise regimen into any part of their day, without having to “drop everything” and suffer through crunches. It is also the perfect solution for new mothers who want to get their tummy back in shape, executives who don’t have that long to exercise each day, and even those that are in awesome shape and just want to look better. You also don’t have to worry about changing clothes while wearing it because it will fit under your shirt and there is no perspiring during a session. On the official website, you will see an awesome video that shows you everything about the product, including some detailed visuals of how it works the muscles. You will also see that the belt is used by several celebrities, cleared by the FDA and has clinical studies showing that: 100% of the people reported their abs are stronger and more toned, the average person received a 49% increase in strength and a 72% increase in endurance.The belt is lightweight and “breathable,” and has different training programs built in if you would like to use them. Or you can just manually adjust the intensity yourself. This innovative method for exercising the stomach muscles is also very easy on the back, and will be a welcome change from those who have sustained injuries through laborious sit-ups. While the popular expression “no pain, no gain” is still often used by reluctant exercisers, this product achieves a very efficient, targeted abdominal workout without the need for any suffering. We definitely recommend trying the Flex® Belt.Click Here to visit the official website and get yours.Flex Belt Vs. Contour BeltMany of our readers have been asking, "What's the difference between the Flex Belt and the Contour Ab Belt? Why did you pick one over the other?" Good question! We picked the Flex Belt because, when all things were compared, it won out over Contour Ab belt in all fields. Contour Belt and Flex Belt both use similar cutting edge technology, but we found that Flex Belt offers customers several greater overall value than Contour. Acessories:
  • Flex Belt: 4 Gel Pads, Free 1 Month Magazine Subscription.
  • Contour Belt: 4 Gel Pads.
Money Back Guarantee:
  • Flex Belt: 60 ays.
  • Contour Belt: 30 days.
Batteries Required:
  • Flex Belt: No.
  • Contour Belt: Yes, 4 AAA batteries .
  • Flex Belt: Two years.
  • Contour Belt: One year.
For these reasons, we think the Flex Belt is a better value than the contour belt and that's why it's our top choice. Click here to see demo videos of the Flex Belt in action.CostThe Flex Belt is $199 for one belt – a VERY affordable price for this type of medical grade technology and a no-lose guarantee. If you order an additional belt for a friend or loved one, you will receive a 25% discount on the second belt. In fact – all additional belts after the first one are priced at 25% off. 1 Flex Belt = $199.99 2 Flex Belts = $349.00 (a $50 savings) 3 Flex Belts = $499.99 (a $100 savings) 4 Flex Belts = $649.99 (a $150 savings) A lot of people order an additional belt for their spouse so they can wear them together. If you have a friend that you exercise with, we recommend going in together on an order and taking advantage of the $50 discount off the second belt. We like that there are no hidden costs and all orders come with a more than fair 60-day money back return policy. Another awesome benefit is that The Flex Belt comes with a 2-year extended warranty, so you can get your belt replaced should anything happen to it….no questions asked. We have checked the customer service out and it is great. They are always available during business hours and will help you with anything you need.Website In FocusThe official website is awesome! It is visually stunning and leaves nothing to the imagination which is helpful when purchasing a $199 item. It is informative without being distracting. Make sure you check out their testimonials and press page. The Flex Belt has been praised by celebrities and enthusiastically reviewed by these major publications: Flex Magazine, Weight Watchers, Glamour, Cosmopolitan, Men’s Fitness and many more…In Fact – this site is sponsored by Flex & Fitness Magazines and all orders come with a free 1-year subscription should you want it.Click Here to visit the official website – you can’t miss this one.


  • Helps tighten, tone and strengthen the abs anytime or anywhere you want to use it.
  • Backed by major celebrities, doctors, and cleared by the FDA as a medical grade device available to consumers.
  • Great for Casual Exercisers, Fitness Enthusiasts, Executives who don’t have time to make it to the gym, Seniors, New Mothers, People with physical difficulties or anyone that wants more attractive abs.
  • Comes with a 60-Day Money Back Guarantee!
  • 2-year extended replacement warranty.


  • The Flex Belt is only satisfaction guaranteed for 60-days if you buy it on the official Flex Belt website -- there are no returns if you buy it through a reseller or a store.


Most people know that good things can only come after they have been earned through blood, sweat and tears. While this may be true in many cases, the Flex Belt is definitely an awesome exception. With less free time and busier lives, people around the world are losing the opportunity to regularly exercise without sacrificing their daily activities. The Flex Belt is designed to alleviate that issue by providing an easy and comfortable product that provides exercise and convenience simultaneously. The belt is designed for everyone and we can’t really imagine who can’t benefit from it: new mothers who want to get their tummy back in shape, students, executives who don’t have that long to exercise each day, and even those that are in awesome shape and just want to look better. You can also use the belt anywhere and anytime: while working, doing house choirs, shopping, while at the gym, reading, watching TV, studying etc…. We feel that $199 is not only a fair price for a more attractive stomach, but you will be able to use the belt for years to come. This is an awesome product that provides a no-lose situation in trying it. We recommend ordering this one right away. In the unlikely situation that you are not satisfied, we encourage you to simply take advantage of their 60-Day Money Back refund policy.Click here to visit the official website and get yours – you won’t be disappointed.
Click Here To Order Flex Belt!
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

Rating: 4.5. From 970 votes.
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Flex Belt Review

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Flex Belt

What are the side effects of Flex Belt?

The only potential side effect of Flex Belt is ill fit with larger waist sizes.

What are the ingredients in Flex Belt?

The Flex Belt doesn’t have ingredients, but is sold with four gel pads.

How do I know if Flex Belt is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Pronabolin, with scientifically backed ingredients.

Click here to get your sample of our powerful testosterone booster today.

Does Flex Belt work?

Yes the Flex Belt works. There’s been clinical research showing the product produces results. However, you may want to add a supplement like Pronabolin, which contains clinically proven ingredients to maximize results.

How much does Flex Belt cost?

One Flex Belt costs $199.99. You will receive a 25% discount on purchases of two or more belts.

How should I use the Flex Belt?

You should use the Flex Belt daily for 30 minutes for four to eight weeks. Afterward, you will continue to use it two to three times per week for maintenance.

Is the Flex Belt FDA approved?

The Flex Belt is the first abdominal toning product approved for sale by the FDA.

Does the Flex Belt come with a warranty?

The Flex Belt comes with a two-year warranty that covers manufacturer defects.

Are there other Flex Belt products?

Other products from Flex Belt are the Flex Mini and Flex Arms.

Can you order replacement pads for the Flex Belt?

You can visit the official website to order replacement pads starting at $14.99 for one set. There’s no mention of how many will be received.

Are the Flex Belt gel pads safe?

The Flex Belt gel pads are medical-grade and generally considered safe.

When do you change the Flex Belt gel pads?

You change the Flex Belt gel pads after 20 to 30 sessions.

Is there a guarantee?

There is a 60-day money-back guarantee on the Flex Belt.

Flex Belt Reviews

Leave a comment or review

   work for my stomach
stacie (Verified User)

I had 2 c section 14 months apart. Will this product work for my stomach??

Candace (Editor)

Hi, Stacie. Flex Belt is designed to sculpt your midsection with ten minutes of daily use with exercise. When followed regular they claim is produces the desired result. If start seeing results be sure to let us know. Also see what other dieters are saying.

Yea right

“They claim” let’s see before and after photos if your contraption is so awesome.


Does anyone know if the flex belt can be used on other body parts, like lower on the hips for instance? Or up on the rib cage right below the breasts for the “bra fat”?

Cameron (Editor)

Sure, Vanessa! If you securely fasten the belt to your thigh, for example, it will function the same.


Do u get a 6-pack with this thing? And if ur skinny can u still use it?

Cameron (Editor)

It claims to tone and tighten your midsection and yes, you may use it if you are skinny.


will this belt give you headache ?

Victoria (Editor)

Hello. All users are different and can experience different side effects; please make sure to consult with your physician before taking this product.


I just purchased The Flex Belt and after watching the tutorials I’m wondering if it can be used with a belly piercing? I’ve never removed it and not even sure how…..thoughts?

Maribel (Editor)

Hi Felicia! For detailed product and usage instructions, please refer to the Flex Belt official website for more information.


Could you pay for a flex belt with cash?

Victoria (Editor)

Hi! For more information on pricing and payment options, please refer to the Flex Belt official website.


Has anyone had any numbness in their body after using the Flexbelt??


Hello Kitty. All users are different and can experience different side effects, pleaser refer to the Flex Belt official website for more information.

It's not the one I ordered !

I purchased the Flex Belt a few years ago, and the package box said Flex Belt by Slendertone. I ordered direct from the Flex Belt site. They are either the same company or were at one time…. same thing.

aiza wilcox

how many times in 1 day to use flex belt ?
how often I gonna use it?

Stephen (Editor)

At least 10 minutes per use with activity. You may use it how often you like.

  Can't feel a lot on the middle
Louis (Verified User)

i just got my new flex belt and when I started it out at 30 on each side I can only feel it on my sides. Should I feel more in the middle?


Louis, I’ve been using my flex belt only four days, I started on 40 , program 1. I hardly felt anything. On my third day, I switched to 60 program 3…. It made a huge difference!! I already train four days a week but I’m the laziest when it comes to stomach exercises, well, today is only day 5 and my husband noticed the change this morning! Now he wants to borrow my belt ( no way). Try a different program and go up to at least 40.

Karen (Editor)

Hi Louis. There doesn’t seem to be something wrong based on your description. Good luck on your goals!

  Question about payment options

Are there any payment options

Niema Stoks

Hi Mary, you can order through QVC and use flex pay for about $38 per month

Victoria (Editor)

Hi Mary. For pricing and purchase questions please refer to the official FlexBelt website.

  Is this okay with my condition?
ann kellen

i have titanium rods and screws in my back.
will this interfere?

Victoria (Editor)

Hi Ann. For interactions with your titanium rods and screws, please ask your physician if it would be safe for you to use.

  Need price information
sussan mugambi

How much does it cost in shillings

Victoria (Editor)

Hi Sussan. For pricing inquiries please refer to the official FlexBelt website.

  Needs help in buying this
Zvika Amir

Was about to purchase Flex Belt just to find out that Israel is out of the list of countries – do you have any problem with Israelis buying your products??

Victoria (Editor)

Hi Zvika. Please contact the customer service department on the official FlexBelt website for product order inquires.

  Wanted to become a distributor

Question How do I become a distributor?

Victoria (Editor)

Hello Israel. For wholesale and distributor inquires, please contact the sales department on the official FlexBelt website.

  Where can I get this?

were can i buy this is there any in here in kuwait

Victoria (Editor)

Hi Rosper. Please contact the customer service department on the official FlexBelt website for product order inquires.

  Where can I buy this?

Hi ,im in Johannesburg, “Soweto”how can I get this Flex Belt please?

Victoria (Editor)

Hello Millicent. For order inquires, please contact the customer service department on the official FlexBelt website.

  Need price information

What is price according to Indian cuurancy

Victoria (Editor)

Hi Priya. For pricing inquiries please refer to the official FlexBelt website.

  How to purchase this?
Ronald Russell

How do I purchase one?

Victoria (Editor)

Hi Ronald. Please visit the official FlexBelt website for ordering inquires.

  Where can I buy it?
Gillian foster

Looks good,can it b bought in uk if not send me one free of charge and i will report back to u ,many thanks gillian xx

  Need contact information

What’s ur adress ? And ur phone, can we get ur product in dubaji?

Victoria (Editor)

Hello Alexander. For product ordering questions, please contact the customer service department on the official FlexBelt website.

  Very useful product
Madhuri (Verified User)

Not bad very usefull product.

Victoria (Editor)

Hi Madhuri.Thanks for the feedback!

  Very effective product
kumar (Verified User)

machine which works effective to reduce body weight.

Victoria (Editor)

Hello Kumar. Thanks for the feedback!

  Got good service
Kavimani (Verified User)

using it for last one two months once machine stops working one of the person from telebuy came and repaired, good service.

Victoria (Editor)

Hello Kavimani. Thanks for your input on the product!

  Good for exercise
Marina (Verified User)

good exercise for body.

Victoria (Editor)

Hi Marina. Thanks for the feedback!

  Can it still be use after?
Eshwar (Verified User)

Can I use orbitrek elite after loss weight also? or want to stop after getting result?

Victoria (Editor)

Hello Eshwar. It all depends on the end results that you want and your health.

  The only product the worked for me
Vishist (Verified User)

I tried many ways to reduce my body weight but none effects . But orbitrek elite works very effectively.

Victoria (Editor)

Hi Vishist, thanks for your feedback!

  Able to lose weight
Janaki (Verified User)

I reduce my weight

Victoria (Editor)

Hello Janaki. That’s great!

  Quite expensive but was delivered on time
Meenakshi (Verified User)

I bought it from chennai telebuy and they delivered on right time. its cost is comparatively high.

Victoria (Editor)

Hi Meenakshi. Thanks for your feedback!

  Good weight loss product
Ambu (Verified User)

Its a good product to reduce weight.

Victoria (Editor)

Hi Ambu, that’s great!