Search  for anything...

Wonder Core Smart, Ab Machine, Ab Workout Equipment, Sit Up Machine & Exercise Equipment, Ab Crunch Machine for Stomach Workout, Ab Core Trainer Abdominal Machine for Home Gym

  • Based on 1,432 reviews
Condition: New
Checking for the best price...
$99.99 Why this price?
Save $99.99 was $199.98

Buy Now, Pay Later


As low as $16.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Mar 8
Order within 16 hours and 29 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Color: Green


Features

  • Excellent Fitness Helper: Our ab machine has cleverly hidden interlocking springs on each side that provides adjustable resistance,which can help you get back to your starting position, it's like having the hands to spot you, this is perfect for older people or anyone that's just starting out.
  • Adjustable Resistance: The secret is ingenious patented design in the Wondercore smart is that it has precision dials on each side, which allow you to adjust resistance, delivering an amazing 24 pounds to 48 pounds of resistance per side. Precise adjustable resistance to dial in the exact type of workout that you want, whether you're a beginner or pro, Wonder Core Smart can target at stubborn midsection and get the results that you're looking for.
  • Multifunctional Training Board: The Wonder Core Smart exercise system is designed to provide a laser focus on your upper, middle and lower abs, and oblique muscles for a well-rounded workout you will feel all over. Exercise your arms, shoulders, midsection, thighs, legs.
  • Multiple Workouts: ab tuck, ab crunches, sit up, push up, forearm workout, scissor kicks, glute bridge, bicycling. You can target your core, do upper body, lower body and cardio all in one compact ergonomic design. 6 great exercises plus cardio to give you the ultimate total body calorie blasting workout.
  • Easy to Carry and Store: You can store it just about anywhere, it's compact, portable and easily folded up, so you can take it with you and get the workout that you want anywhere anytime.
  • Nutrition Guide: You can download the Wonder Core APP, you can get the Wondercore Smart Exercise Guide that shows you exactly the perfect forum on each and every exercise, and the Nutrition Guide, pack with tips and tricks for turbocharging your workouts and getting the fit lean body that you've always wanted even faster.
  • Maximum Load: This abdominal exercise machine was Certified by TUV Rheinland in Germany, the maximum load capacity is 264 LB, which can meet the needs of most fitness enthusiasts.
  • Anti-slip design at the bottom.
  • No installation requirements.

Description

Wonder Core Smart Fitness Equipment, is a fitness breakthrough that might put you on your way to a stronger core and shredded abs. Whether you are looking to strengthen for a sport or tone for bikini season, this item is sure to impress. The Wonder Core Max exercise system is designed to provide a laser focus on your upper, middle and lower abs and oblique muscles for a well- rounded workout you will feel all over. It is a fitness accessory that no athlete should be without.

Brand: WONDER CORE


Color: Green


Material: Metal, Plastic


Item Weight: 13.01 Pounds


Style: Fashion style


Maximum Weight Recommendation: 265 Pounds


Product Dimensions: 21.26"L x 20.28"W x 13.39"H


Manufacturer: WONDER CORE


Brand: ‎WONDER CORE


Color: ‎Green


Material: ‎Metal, Plastic


Item Weight: ‎13.01 Pounds


Style: ‎Fashion style


Maximum Weight Recommendation: ‎265 Pounds


Product Dimensions: ‎21.26"L x 20.28"W x 13.39"H


Manufacturer: ‎WONDER CORE


Item Package Dimensions L x W x H: ‎22.01 x 20.59 x 5.39 inches


Package Weight: ‎6.62 Kilograms


Item Dimensions LxWxH: ‎21.26 x 20.47 x 13.39 inches


Brand Name: ‎WONDER CORE


Warranty Description: ‎1 year structural frame / 180 days other parts and components


Model Name: ‎WCS-612


Suggested Users: ‎unisex_adult


Number of Items: ‎1


Part Number: ‎WCS 612


Included Components: ‎QR Code Card, wonder core smart machine


Size: ‎Green


Sport Type: ‎Exercise & Fitness


Date First Available: January 1, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Best Home Gym Equipment Ever-100% Recommend
Color: Green
Best home gym equipment ever, and I have tried them all. I 100% recommend this to everyone from beginner to Intermediate+ or Advanced -. It is fully assembled, good to go in less than 2 minutes. You can find and use almost any muscle with this. For any of us who have tried a barre class and the instructor says squeeze this muscle and you can't find that muscle or any other, this is for you! It is also good looking, fun to use and very sturdy/stable/comfortable to use. Every time I walk by it, I try another type of exercise. It is very light to move around and takes up no space. I am actually shocked at how good this is. ... show more
Reviewed in the United States on January 21, 2026 by C. Karelli

  • A great buy.
Color: Green
A+++++++++++ equipment. The product announcement is that there is no assembly required. This is incorrect. There is "minor" assembly required. Manual provided with machine, and You Tube has complete film assembly and included are exercise teachers showing the various exercises with performance of exercises. The actual product DOES NOT come with a video instruction. You Tube has the entire workout AND BEST OF ALL, HOW TO ASSEMBLE THE EQUIPMENT. HIGHLY RECOMMEND YOU TUBE INSTRUCTIONS PROVIDED BY MANUFACTURER FOR ASSEMBLY. Anway, A+ for machine as a home product for workouts, i am very pleased that i purchased this. Actually a remarkable, small piece of equipment, but powerful for strengthening legs, improving circulation and strength. It is an entire body workout. You Tube not only shows in detail how to assemble the equipment (very easy to do), but on the same site and video, all exercises. This is definitely a remarkable machine. Does so many things. Wonderful. Just go to You Tube punch in name of item, and not only easy assembly instructions, with detail, but a truly easy assembly. Best of all, machine remarkable. I use it every day, and for lower body, legs, circulation, etc., but this machine is a complete body workout, depdning on how one positions oneself on the machine. Just fabulous. We plan to give as gifts for speciual friends, as gifts arise. I was surprised at h ow outstanding this is. Thank You, Amazon, for making this available. ... show more
Reviewed in the United States on June 4, 2025 by Buddy D.

  • Very good product
Color: Red
It's definitely worth the cost. I am 60yrs old and find it pretty easy to use. Very comfortable. I put it on my wide couch because I have a hard time getting on the floor and getting back up due to hip replacement and needing my other hip done. It worked really good on my couch.
Reviewed in the United States on January 21, 2026 by lisa dye

  • Works well for home workouts
Color: Green
This ab machine works very well and is a great addition to any home workout routine. It effectively supports sit-ups and a variety of core exercises, helping to strengthen and tone the abdominal muscles. The compact design makes it easy to store and perfect for small spaces, which is ideal for anyone working out at home. I gave 4 stars because the resistance could be better, but overall it's a nice product ... show more
Reviewed in the United States on July 21, 2025 by Mamata Patil

  • Smart Wonder Core
Color: Green
After a lot of research and review digging, I purchased this Wonder Core machine to aide in my workout plan. I am disabled, but still take fitness very seriously - being 32 years old and hoping to have many more years to go. I suffer from disabilities in my neck, shoulder, ribs, lower back, and leg. I am able to use this machine daily, and due to its support, I have been able to achieve many more fitness goals than I imagined. It is designed to last, the stitching and mat are solid. It does not wobble, squeak, or slide around. The foam pieces are sturdy and do not move around during movement. Assembly was ridiculously easy, as is storage. You have the choice to add more or less tension, using the two knobs on the back side. It's nice to customize each arm, as one of my legs is much worse than the other. I can ease up on one half if I need to. The size is ideal for a broad range - I am 5'1, 118 lbs and have no problem. My husband is 6'0 and 220 and he has no problem either. He is able to use this machine daily as a big part of his own fitness journey. Since we both share the unit, switching tension settings is a breeze and takes only seconds to do. Included in the box is a manual guide for workouts. I love that there are multiple ways to use the Wonder Core - it's definitely not just for sit ups. You can get a whole body workout with just one piece of equipment. The only problem we have both had was doing push ups. There is no comfortable way to do them, we've each tried and it's super awkward. However, the other exercises were completely fine. I would absolutely recommend the Wonder Core to anyone looking for a multi-purpose unit to their home gym set up. ... show more
Reviewed in the United States on March 18, 2025 by Makayla Vincent Makayla Vincent

  • Great product!
Color: Green
Love this product! Sturdy, effective and easy to store. Very happy
Reviewed in the United States on February 7, 2026 by jmk

  • FOR ABSOLUTE BEGINNING EXERICSERS.
Color: Red
Kinda fun for a while, if you first figure out how to set it up. You'd better be a real beginner in your exercise routine. After setup, you'll find there is very little it does that can't be done better using other methods, but it does do what it says. My knees aren't good for kneeling, so some of the exercises are not for me. You might also want some extra padding for some exercises with body contact. It will work your arms. You can also use your legs. Best when turned away from you. However, an under-desk peddler would be more effective. It's easy to adjust once you have the basics down. Pull the little plugs over the ends. Don't try just tightening the screws before you do. Instructions are pretty minimal. Considering that it wouldn't cost anything but a little brain power, I don't know why instructions can't be the easiest part of manufacture. Doesn't change printing costs. Alas, that is not just a complaint about this product. It is easy to store if you unscrew and bring the knobs around to the inside again. VERY good exercise for your fingers!! You'll have to decide for yourself if this is a worthwhile purchase. For me, not so much, but will keep it and play around with it. Check out warnings in other descriptions regarding overheating the inside of the mechanism and causing it to break. Give the poor thing a rest now and again to cool off. You, however, will be just fine. For some real work, try kettlebells! Now THERE you'll have fun and get some sweat!! ... show more
Reviewed in the United States on December 16, 2025 by nongeek

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...