From Simon Clarke
Simon Clarke

What makes the 3G Cardio 80i Fold Flat Treadmill stand-out?

In this review, we’ll take you through what we’ve found out about the 3G Cardio 80i in our research. There are many stand out features that come with this treadmill that we’ll endeavor to take a closer look at. The end goal is to help you make an informed decision about whether or not this is the right treadmill to buy for your home and workout goals.

One of the first things to note is that the 3G Cardio 80i is a fold flat treadmill, the first of it’s kind to be designed specifically for runners. One of the most impressive parts of this is that the machine can fold flat to a height of 9.75 inches and be easily rolled under the bed for storage. This makes it extremely convenient for runners who want a high impact workout in their own small home spaces.

What’s more, the machine can also be folded vertically if desired. There is a set of wheels on the underside of the body which allow it to be easily pushed out of the way. This means you can store it behind the door when you’re done with your workout and you won’t even notice it taking up space. It has many convenient storage solutions with it’s flexible folding technology options, making it ideal for apartments or condos.

The best news is that the convenience doesn’t skimp on design. It still comes with top quality manufacturing which is built for durability. Although it’s still a relatively new treadmill to the market from a relatively new brand, it has certainly made it’s mark with ingenuity and sturdiness.

Key Specifications

Suitable for Walking and general cardio workouts
Assembled dimension 74L x 33W x 49H inches (188L x 84W x 124H cm)
Tread belt dimensions 58L x 18.5W inches (147L x 47W cm)
Supported weight 325 lbs (147 kg)
Motor 3.0HP
Incline 0% – 15 %
Deck cushioning Yes, Suspension System
Foldable Yes, horizontal and vertical
Speed levels  0.5- 11 mph (0.8 – 17.7 km/h)
Workout routines
  •  5 standard programs (customizable)
  • 3 fitness test programs
Price  $1,799.00
Weight 225 lbs (102 kg)
  •  Lifetime frame and motor
  • 5 year parts
  • 1 year labor
Handrails Yes, short arm rails on either side
Heart rate monitors Contact and wireless
Folded horizontally dimensions 74L x 33W x 9.75H inches (188L x 84W x 25H cm)
Folded vertically dimensions 39L x 33E x 70H inches (99L x 84W x 178H cm)
Device compatibility Yes, MP3 input
Head unit display Yes, small 

Product description

The design and features of this treadmill are nothing short of unique. Throughout our research we have found that customers are very satisfied with how this machine has been designed. The quality and feel of the 3G Cardio 80i are essentially industry changing. Firstly, the ability to fold vertically or horizontally is what makes it an absolutely ideal fitness solution for in the in home user. There is a perception that flat folding treadmills are lesser in quality, but the 3G Cardio 80i has certainly gone out of it’s way to change this.

The fact that this is built to be a runner’s treadmill means it’s got a bit more oomph than other treadmills on the market. There is a heavy duty 3.0 HP motor in it’s core that makes it fast and durable. The high quality running surface gives the treadmill a reliable stability during the workout. Runners can trust the speed capabilities and intensity to get up to the level desired for their cardio improvement. There is an 11 mph maximum speed capability and an incline of up to 15% which is pretty standard.

The 3G Cardio 80i has also been designed with soft suspension on the treadmill belt. This is ideal for a high intensity cardio workouts so that users can safeguard their joints and muscles. In fact, this treadmill has won awards as the softest design for the best running and/or walking treadmill on the market, thanks to it’s high quality suspension system.

This award winning treadmill model comes in a professional monochrome black and silver designed frame. 

Key features

Aside from the obvious foldable structure component of the 3G Cardio 80i, there are many other great features that make it a high quality treadmill. Here we will take a deeper look at the features you get with this model that can enhance users workout experience or convenience.

Deck Suspension System
There is a softening suspension system under the 3G Cardio 80i’s deck which provides comfort and support for a smoother run. There are high grade precision crowned rollers with sealed bearings in the deck as well, ensuring longevity.

Regular Sized Tread Belt
The running surface itself is spacious for the average sized runner coming in at 58 inches by 18.5 inches. However, those over 6 foot 5 may feel slightly cramped.

Motorized Incline
The incline settings of the 3G Cardio 80i range from 0% to 15% for a maximum slope of around 11 degrees. This adds intensity to a cardio run and is ideal for interval training. The inclines can be adjusted by increments of 1% at the touch of a button.

Easy To Use Console
The console is basic and user friendly. It has an integrated blue black-light which makes it easier to read in a dark room, ideal for nighttime workouts. The console tracks speed, distance, time, pulse, and calories burnt. You can also keep track of your current speed and incline levels using it. We appreciate the general simplicity of it’s design as with consoles, less does tend to be more.

A variety of features are included for user convenience including head phone jacks and a drink bottle holder. This means you can bring your own entertainment to your workout and keep the beat with your favorite tunes. A drink bottle holder is extremely important as you should aim to stay hydrated during your workout and keeping your water bottle within arm’s reach makes this easy to do.

Preset Workouts
The 3G Cardio 80i has a variety of preprogrammed workouts. In total there are 8 preset workouts to choose from. These all target different types of exercise including warming up, heart exercises, fat burning, summit climbing simulation, long distance running, rolling hills tracks, speed intervals and speed bursts. The incline automatically adjusts depending on what segment you of a program you are on.

Two user Profiles
You can share the 3G Cardio 80i with another person using the two custom user profiles on which you can save your preferred workout settings and track your progress. You can also create up to two individualized workouts to target your fitness goals. Clearly, if you just want to get started, there is also a manual quick start mode on the treadmill to freely set your speed and incline.

Here is the quick summary

As with any treadmill, there are pros and cons to the 3G Cardio 80i. Ultimately it is a basic and minimalistic treadmill without all the bells and whistles of other products. However, it is also a sturdily constructed design and has definite advantages in the space saving arena. All in all, the machine is ideal for cardio running or walking and supports stamina, strength, and interval training in the workout plans.


  • Quiet motor
  • Dual folding technology
  • Suspension and shock absorption in the deck
  • Easy to use
  • Integrated sound system
  • Pulse sensors on lateral grip
  • No assembly required
  • Good warranty plan


  • Small running surface for particularly tall runner
  • No volume control on the console

Reviews from customers who own the treadmill

The 3G Cardio 80i has boasts a 4.5/5 star rating from those who own one. Although this is a good sign, we decided to investigate further into real user’s reviews and feedback on their experience with the 3G Cardio 80i. This research indicated that it has been a hugely successful tool for the people who have invested in it. As stated earlier, it is quite a minimalistic machine so not one to go for if you want all the latest mod-cons. However, for someone looking for a space saving and compact machine that will give a consistent and stable cardio run or walk workout, this machine is hard to pass up.

User Favorites:

  • The fold down feature, or fold up to stand vertical feature, has proven to be a real favorite amongst users, giving them added convenience and less hassle in finding a space for the treadmill.
  • The machine comes with belt lubricant and adjustment tools which made customers very happy. The easy to manage instructions gave users peace of mind during the easy set up period.
  • Some users were concerned with the performance element before buying, but found that the fold flat design doesn’t detract from running stability and they still got a solid workout.
  • The added support and suspension for knees and joints was a big bonus and users found this was a very comfortable machine to run on.

User Negatives:

  • Some users found that the machine was bulky and heavy to move around when folded flat.
  • The small screen and basic console display was a letdown for some users who were expecting more features and more elements to the display.

Do we recommend the 3G Cardio 80i

This treadmill comes with many recommendations from satisfied users, so much so that we can’t help but recommend it ourselves. The biggest pro that we have found in our research in favor of the 3G Cardio 80i is the fold flat feature. This makes is so simple and easy to store the treadmill out of site when not in use. It doesn’t take a long time to fold the machine either flat or standing up vertical. What’s more, the machine is easy to move around and transport. This makes it very suitable for avid runners who live in an apartment or small condo.

The treadmill is minimalistic and the features are basic. This refers mostly to the console which isn’t a very large screen and doesn’t have a lot of features. While other treadmills have media players inbuilt and Bluetooth capabilities, this one is a lot more basic. The console shows you the important information of your speed, incline, heart rate, and calories burnt, but it isn’t going to go much further than this.

If you’re looking for a machine where you can run with your media device such as a smart phone or tablet, this isn’t the right one. There is no media stand placement. However, there is an audio jack to listen to music and a place for your water bottle. This machine values practicality over the fancier elements of other treadmills. You will still get a wonderful cardio workout with this treadmill, just without the mod-cons of others. To those wanting a simplistic treadmill that will do the job of a treadmill well, this is a worthwhile consideration.

To Buy or Not ToBuy, That Is The Question

This is a heavy duty treadmill built specifically for runners. This means that you will get a great cardio workout whether you are running for weight loss, intervals, strength, or speed training. As we have repeated many times already, the 3G Cardio 80i comes with an amazing fold flat feature so you can store it under the bed, or stand it up vertically and store it in a cupboard or behind a door. It is easy to assemble and easy to use. The reason for the repetition is that this really is the key stand out part of this treadmill.

The basic features of the console are great for people who aren’t too into technology and don’t want to be overwhelmed with special features. However, for those wanting to track their workout with Bluetooth connectivity and iOS or Android apps, this machine won’t do that for you. If you’re more interested in a solid workout and stable running platform without being inundated with technology, this is a great machine to invest in.

It comes at a great price which proves to be really good value. Our research indicates that this is a really popular choice for people living in apartments in the city who love running. It means you have the convenience of getting the treadmill out of storage when the weather is bad outside. When you aren’t using the treadmill, the foldable function means it won’t take up space in your apartment. If you’re considering buying one, check out it’s retail page for more information here.