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You’re standing in front of the mirror wondering if there’s a real solution to your concerns—something that actually works without surgery or empty promises. Maybe you’ve heard about devices like Quick Extender Pro (Official & Safe ✅) and SizeGenetics (Official & Safe ✅) but you’re not sure which one could deliver real results. Choosing between Quick Extender Pro vs SizeGenetics isn’t just about picking a product—it’s about finding what fits your needs, comfort, and goals. Let’s break down what sets these two options apart so you can make a confident, well-informed choice.
Overview of Quick Extender Pro and SizeGenetics
Quick Extender Pro and SizeGenetics use traction to work. Both devices stretch your penis gently. You wear them for several hours each day. This stretching helps new cells grow. These extra cells make your penis longer and thicker.
Quick Extender Pro offers adjustable tension and comfort pads. Many users try this device for growth. Some say it helps with bending, too. If you want simple adjustments, Quick Extender Pro offers easy-to-change straps.
SizeGenetics works through a similar method. It's built in Denmark and goes through high quality checks. The device gives you 58 ways to adjust comfort and grip. Medical studies and doctors back up SizeGenetics. Men often choose it for penis growth and for fixing curves, like with Peyronie’s Disease.
Both options give you private use at home. They do not need surgery or pills. Do you look for safety, comfort, or medical support? SizeGenetics holds clinical proof and strong reviews. Quick Extender Pro has its own fans who talk about steady results.
You pick based on what matters most: comfort, proof, or features. Each device can fit different needs. If you want permanent changes, both brands claim long-term gains if used the right way.
Key Features Comparison
Let’s get right to what sets these two devices apart. You’ll notice small but important changes in how each one feels and fits into your daily life.
Comfort and Design
Quick Extender Pro uses a Dual Strap System. This means the straps go over your skin in two places. You’ll feel the pull spread out, not just on one spot. Wearing it for a few hours? You may feel less pinch or rub.
SizeGenetics has a different take. It uses smooth straps but also lets you change how it fits in up to 58 ways. You can turn tiny bolts to adjust the comfort. Some people say the stainless steel makes it feel a bit heavy. If you wear it longer, that weight can matter.
Have you ever had sore spots from a tight watch or bracelet? That’s why these little design touches make a big difference.
Adjustability and Tension Levels
Quick Extender Pro can stretch with up to 4000g of force. That’s a bit like adding gentle pressure over time—more than most need. Want it softer? You can change that. Need it stronger? It can go there, too.

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Claim Your 40% DiscountSizeGenetics goes up to 2800g with very fine step changes. You control how much stretch you use. Some people like to start gentle, then increase tension as they get used to it.
Small changes in force can feel big over a day. Have you tried turning a screw too tight, only to feel it later? These options try to keep that discomfort to a minimum.
Materials and Build Quality
Quick Extender Pro uses lighter stuff. The straps are made from soft silicone so they bend and fit most shapes. Lighter means you might forget it’s even there.
SizeGenetics is mostly stainless steel. It looks and feels like it’ll last a long time. It’s stronger, but also adds weight. Some users say that makes a difference, especially if you plan to wear it for many hours.
Think about shoes. Would you pick heavier boots for every day? Or go for light sneakers you can walk in for hours? The feel and build of each device can shape your choice.
Effectiveness and Results
Both Quick Extender Pro and SizeGenetics work to help you see changes over time. They use gentle pulling to make the penis longer and fuller. Some people want quick wins, but real change takes some patience.
Clinical Studies and User Testimonials
Many doctors say both devices work. Why do so many experts agree? They use a style called traction therapy. Science shows this style can help if you use it often.
People who tried Quick Extender Pro talk about its good support. The Dual Strap System helps them wear it for longer without pain. For example, Jake shared that he could keep it on for hours and saw good growth. Some say they gained close to 2 inches after months.
With SizeGenetics, you find lots of reviews saying the same thing. Many share stories about feeling more confident and getting real gains in size. Mark wrote about wearing it after work each day. He noticed he got closer to reaching his goal with steady use.
Have you ever wanted to hear success before trying something new? These stories make it easier to trust.
Timeframe for Visible Results
You might wonder how long it takes to see changes. Quick Extender Pro users often notice a difference in about six months. Some people see gains of 2 inches or more if they use it every day.
SizeGenetics also brings results over about the same time. People say their gains fit with what doctors find in studies. For example, one study showed average increases of almost 28% in length and 19% in thickness after four to six months.
Do you want to try for your own results? Most gains appear with daily, careful use over time.
Ease of Use and Wearability
Using a penis traction device should feel simple and comfortable. Have you wondered how Quick Extender Pro and SizeGenetics feel in daily life?
Quick Extender Pro keeps things easy. Its Dual Strap System uses soft silicone pads. These pads are gentle on your skin and help hold the device steady. Many users wear it for hours with little trouble. The device feels light, so it doesn’t weigh you down. Adjusting the tension takes only a moment—just twist the rods to set the stretch. Can you picture wearing something all day that doesn’t pinch or slip? Many say Quick Extender Pro does just that.
SizeGenetics works a bit differently. It looks strong and is made from stainless steel. This makes it heavier. You might notice the weight if you wear it for a long time. The straps are firm and adjustable, letting you find a snug fit. What about changing the tension while wearing it? SizeGenetics lets you do this with small knobs, so you don’t have to take the device off to tweak the fit. Some people love this detail. Others say the extra weight takes some getting used to.
Which fits your routine best? If comfort is your top concern—maybe for long days—users often lean toward Quick Extender Pro. If you care most about fine-tuning the fit, the control from SizeGenetics might stand out. Both have loyal fans, but wearability can come down to what feels best for your body and your day.
Pricing and Value for Money
Price often helps you decide. Quick Extender Pro costs less than SizeGenetics. What do you really get for your money? Here’s what counts.
Quick Extender Pro gives you strong tension for a lower price. It offers up to 4000 grams of tension, which helps if you want a firmer pull. Many users see this as good value. The kit feels light, and you can adjust it in seconds. If you want a device that’s easy on your wallet but still works well, this is a smart pick.
SizeGenetics asks more from your pocket, but you get special features. You find a 58-way adjustment system. This means you can make it fit just right, which helps if you want to wear it longer or have sensitive skin. Made in Denmark, SizeGenetics uses strong steel and feels solid. Many users also like its focus on comfort and grip. Is a higher price worth more comfort? Some say yes.
Want the numbers? See the table below.
Device | Starting Price | Max Tension (grams) | Comfort System | Country of Manufacture |
---|---|---|---|---|
Quick Extender Pro | Lower | 4000 | Dual Strap System | Not specified |
SizeGenetics | Higher | 2800 | 58-way, Soft Strap | Denmark |
Value means more than price. Quick Extender Pro brings strong tension and lower cost but fewer comfort tweaks. SizeGenetics costs more, but you get more options to fit your needs.

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Think about your budget and comfort first. Do you want to save money, or do you want extra comfort and fit? Picking what matters most for you helps you make the right choice.
Pros and Cons of Each Device
Quick Extender Pro gives you a lightweight way to try penis traction. Have you ever worn a tight belt all day? Comfort matters, right? Quick Extender Pro uses a soft strap called the DSS system. Think of this strap like a padded seatbelt for delicate skin. Many users say it feels soft and doesn’t rub after hours of wear. If you want to spend less, this device usually costs less than others.
But it comes with some tradeoffs. Some users notice they must use O-rings or add small fixes for more comfort if the basic setup bothers them. Have you ever had to tweak a toy or tool at home to make it fit better? That’s the feeling here.
SizeGenetics stands out for its sturdy build. It’s made from stainless steel and comes with a box full of extras, like soft straps and even a posh leather case. Does that sound nice? Many people love the feel of premium gear. You can adjust the tension while wearing it, which means fewer breaks and easy control.
Yet it has a heavier feel due to all the metal. If you find heavy items tough to wear, that could matter. SizeGenetics costs more than most—sometimes up to $500. The basic noose-style extender sometimes slips or pinches, especially if you don’t use padded sleeves. Ever have shoes that dig in until you add thick socks? It’s kind of like that.
Here are the main points in a quick table:
Device | Pros (Examples) | Cons (Examples) |
---|---|---|
Quick Extender Pro | Less expensive, soft silicone strap, up to 4000g force | Needs tweaks (O-rings), lower accessory count |
SizeGenetics | Strong build, more comfort options, many extras | Heavier, more costly, sometimes pinches skin |
Which would you pick—light, lower priced comfort or premium, heavy-duty options? Both can help, but your choice depends on which features sound right for you.
Which Is Better: Quick Extender Pro or SizeGenetics?
When you look at these two extenders, you might ask, “Which one works best for me?” It's good to break things down, step by step.
Some people want strong stretching power. Quick Extender Pro pulls up to 4,000g. That’s a big number. Others find less tension easier to use. SizeGenetics pulls less, so it can feel gentler.
Both devices use straps to keep you comfortable. Quick Extender Pro has the Dual Strap System. It spreads out the pressure. You might wear it longer and not feel sore. SizeGenetics uses many ways—up to 58—to fit. That means you can adjust it little by little, so it fits just right.
Do you like to have extra things in your kit? Quick Extender Pro gives you choices. You pick from different packages and add-ons. This helps you change how the device fits or works. SizeGenetics keeps it simple, but still gives you choices. You just get fewer add-on options.
Many want proof that something works. Both extenders have users who saw real changes, like more length and less curve. Studies say that using traction devices can help make these changes happen. People talk about getting almost two inches more in size after many months. You might see changes if you stay with it and use it often.
You may ask, “Will it feel okay to wear?” Some people liked the Quick Extender Pro because it's light. They could wear it through the day. Others liked how sturdy SizeGenetics feels, but noticed it can feel heavy after long hours.
Let’s look at price. Quick Extender Pro costs less than SizeGenetics. It offers more power too. But some people like how SizeGenetics feels and are happy to pay more for extra comfort.
Here’s a simple chart to help:
Feature | Quick Extender Pro | SizeGenetics |
---|---|---|
Max Tension | 4,000g | ~2,800g |
Comfort System | Dual Strap System | 58-way fit adjustment |
Weight | Lightweight (silicone parts) | Heavier (stainless steel) |
Customization | High (many add-ons) | Medium (fewer add-ons) |
Price | Lower | Higher |
User Results | Up to 3-inch gains (6 months) | Similar gains reported |
Clinical Backing | Yes | Yes |
So, which one is better? It depends on you. Want more power and lower cost? Quick Extender Pro may fit best. Like many fits and a strong, sturdy build? SizeGenetics could be for you. What feels more right for your comfort, budget, and goals? That's the real answer.
Conclusion
Choosing between Quick Extender Pro and SizeGenetics comes down to what matters most to you—whether it's comfort, budget, or advanced features. Both devices have proven track records and can deliver real results with consistent use.
Take your time to consider your priorities and how each device aligns with your goals. Whichever option you pick, staying committed and following the recommended guidelines will give you the best chance at achieving noticeable gains.

Dr. Ricky Robinson serves as the Chief Editor for Fairfield Sun, bringing over eight years of specialized experience in penis extenders. His profound knowledge in clinical research and sexual health devices elevates our content quality. Recognized in esteemed publications for his expertise, Dr. Robinson is undeniably a leading authority in the penis extender domain.