There are several variations of the Force USA G Series All-In-One Trainers, Each with their own unique features. Across the board the G series machines include a Chin up, Core trainer, Front rack, Cabling system and Smith machine (with the exception of the G1). Force USA has also released an app, which includes a list of exercises that can be done with your machine as well as a tailored workout plan that makes the most of your machine. From the G1 to the G20 Pro we will run you through the key details and differences between each model. 

One of the key differences in the range is the weight stack or plate loaded design, The G6, G12, G15, And G20 Pro are all weight stack pin loaded machines. Whereas the G1, G3, G9, and G10 are plate loaded. One of the major advantage to pin loaded weight stacks is that they are significantly easier to change to weight and less clutter. Plate Loaded machines require more weight plates to be able to use every aspect of the Machine, taking up more space and Requiring the need to load an unload plates in order to change the weight between exercises. 

Another Key difference is Cable Ratio, there Are 3 Variations of Cable Ratio within the range, including 1:1, 2:1, and 4:1. A Brief Outline of the cable ratios is as follows:

• 1:1 ratio Means that the pinned weight is equal to the weight on the pull. So if you pin the weight at 40lb, you will have 40lb on the pull. The biggest disadvantage to a 1:1 Ratio is that the cable length is shorter than on a 2:1 or 4:1. another potential disadvantage is that a 1:1 Ratio Results in a higher jump in weight for every pin equaling another 10lb's. This makes a 1:1 Ratio ideal for exercises that target bigger muscle groups, such as Lat-Pulldowns and Low rows. 
• 2:1 Ratio means that the pinned weight Is halved on the pull, So If you pin the weight at 40lb, you will have 20lb on the pull. The biggest disadvantage to a 2:1 Ratio is that you have less weight to work with for those exercises that tend to hit higher weights. A Major advantage to the 2:1 Ratio is that you have a slightly longer cable length than on a 1:1 system making it Ideal for bigger rotating movements such as Cable Fly. The 2:1 Ratio also means that the jump in weight is much smaller than the 1:1 Ratio, with each pin equaling another 5lb's. This makes it  much easier to progressive overload and to slowly improve your max weight in a wide range of exercises.
• 4:1 Ratio Means that the Pinned weight is quartered on the pull, so if you pin the weight at 40lb, you will have 10lb on the pull. The biggest disadvantage to a 4:1 Ratio is that you have less weight to work with when compared to a 1:1 or 2:1 ratio. The biggest Advantage to a 4:1 Ratio is a significantly longer cable length allowing for a wide range of exercise options. As well as smaller increments in weight for every pin being equal to another 2.5lb on the pull. This Makes a 4:1 ratio great for big rotating movements and ideal for people who struggle to increase weight over time. 

A Unique addition to a few options in the range includes a counterbalanced smith machine. This gives you a weightless bar giving you a 0kg starting point, which is great for beginners needing to practice the movement without any weight. It also mean that whatever weight you put onto the bar is the exact weight that you are working with. 

The Force USA G1 is a plate loaded machine that operates at a 2:1 Ratio, using a single weight station. The G1 also does not include a smith machine meaning it has less functionality when compared to the rest of the range. the G1 is a good option if you are after something to get all of your basic cabling exercises along with a front rack in a nice compact unit.

The Force USA G3 is a plate loaded machine that operates at a 2:1 Ratio using a Dual weight station. The G3 Includes a Smith machine, and a leg press attachment can be purchased as an after market option. The G3 offers all of the basic functionality of the all-in-one trainer and can be a good option if you have a lot of weight plates or are needing a cheaper alternative. 

The force USA G6 is a pin loaded weight stack machine, operating at a 2:1 ratio using dual 100kg weight stack's. With the 2:1 ratio it will give a maximum of 50kg on either side. The G6 is the original All-In-One trainer Offering everything you need to satisfy your workout routine.

The force USA G12 Is a pin loaded weight stack machine, operating at a 1:1 ratio using dual 90kg weight stacks. With the 1:1 ratio it will give a maximum of 90kg on either side, The G12 also offers a counterbalanced smith machine. The G12 is the only pure 1:1 ratio machine in the G series range, making it good for anyone who isn't concerned with needing to work with smaller increments. 

The Force USA G15 is a pin loaded weight stack machine, Operating a dual pulley system with a 4:1 and 2:1 ratio using dual 130kg weight stacks. With the 4:1 ratio it will give a maximum of 32.5kg on either side, and with the 2:1 it will give a maximum of 65kg on either side. The G15 also has an optional Upgrade Kit which includes storage shelves, leg press plate, core trainer, TV bracket, jammer arms and a couple extra cable attachments. The G15 is a Definite upgrade on the G6 with more weight too work with, while still offering a lot of great functionality and is something anyone could get on and use no matter their level of strength.

The Force USA G20 Pro is a pin loaded weight stack machine, operating at a 2:1 ratio using dual 130kg weight stacks. With the 2:1 Ratio it will give a maximum of 65kg on either side. The G20 Pro also has the option to include a Lat Row Station Upgrade, which operates at a 1:1 Ratio using 130kg weight stack, giving a massive 130kg on the pull. 

After Market Options:

The G15 Upgrade Kit offers a full selection of extras that will help complete your All-In-One Trainer, and is definitely recommended to get the best use out of your machine.

There is an option to add a set of jammer arms to your machine for the G6, G12, G15 as part of the Upgrade kit and G20 pro as part of the G20 Upgrade kit.

There is an option to get a dedicated Lat pulldown seat for the G1, G3, G6, G9, G12, G10, G15 and G20 pro.