Body-Solid G1B vs G3B: Which Home Gym Should You Choose?

Choosing between the Body-Solid G1B and Body-Solid G3B is not just a “smaller machine vs bigger machine” decision. Both are serious selectorized home gyms. The real question is whether you want the most space-efficient guided strength setup, or a larger single-stack gym with more built-in exercise variety and a stronger attachment path.

The G1B is a strong value because it gives you a complete guided strength setup in one machine. Compared with building around a rack, bench, plates, cable attachment, lat pulldown, and leg developer, the G1B gives many home users a simpler all-in-one path with less planning and less equipment sprawl.

The G3B is the step-up choice because it gives you a more developed training layout: multi-grip press arm work, high/mid/low pulley stations, no-cable-change exercise flow, more listed cable exercise variety, an optional 210 lb weight stack upgrade, and compatibility with major add-ons like the leg press/calf press and inner/outer thigh attachment.

If you want the shortest answer: choose the G1B if you want a compact, complete, guided home gym that delivers a lot of function in a smaller footprint. Choose the G3B if you want more exercise variety, a better upgrade path, and a machine you are less likely to outgrow.

Quick Comparison: Body-Solid G1B vs G3B

Quick Answer: G1B or G3B?

Choose the Body-Solid G1B if you want a complete guided strength system in the smallest footprint in this comparison. It is the better fit for shoppers who want one machine that covers the major strength-training patterns without building a larger rack-and-cable setup piece by piece.

Choose the Body-Solid G3B if you want the better long-term home gym for frequent training. The G3B takes up more room, but it gives you more exercise positions, a heavier stack upgrade option, and access to larger attachments that can make the gym feel more complete over time.

For most shoppers, the decision is simple: the G1B is the high-value compact all-in-one machine, while the G3B is the better choice if you already know you want more exercise variety and future upgrade flexibility.

Dimensions and Space Requirements

This is where the comparison becomes much clearer.

• Body-Solid G1B assembled dimensions: 55" L x 47" W x 83" H
• Body-Solid G3B floor space dimensions: 71" L x 63" W x 84" H
• Body-Solid G3B live working area: 75" L x 81" W x 84" H

The G1B is meaningfully smaller. If you are trying to fit a selectorized gym into a spare room, basement corner, or garage space where every inch matters, the G1B is easier to place.

The G3B needs more room, especially when you account for the live working area. It is still compact compared with larger Body-Solid gyms, but it is not the same kind of “smallest practical footprint” machine as the G1B.

The tradeoff is that the G3B’s extra space buys you a more capable layout, more cable movement options, and the ability to add attachments like the leg press/calf press or inner/outer thigh station.

Body-Solid G1B: Best Compact All-in-One Home Gym

The Body-Solid G1B is the compact all-in-one option in this comparison. Its strength is not that it is “less” than the G3B. Its strength is that it concentrates a lot of guided training into a smaller, cleaner footprint.

That matters because many shoppers are not only comparing the G1B to another selectorized home gym. They may also be comparing it to a rack, bench, free weights, cable pulley, lat pulldown, leg developer, and other pieces that can quickly take over a room. The G1B gives you a more contained setup with guided movement and simple weight changes.

The G1B includes a 160 lb selectorized weight stack and covers the core stations many home users want:

• Chest press station for chest and triceps work
• Lat pulldown / high pulley station for back and triceps movements
• Ab crunch / mid pulley station for core and cable work
• Leg extension / leg curl station for basic lower-body isolation
• Seated row / low pulley station for rows, curls, upright rows, shrugs, and other low-pulley movements

That is why the G1B works well as a compact strength hub. You can train chest, back, arms, legs, shoulders, and core without needing to assemble a full free-weight setup around it.

The G1B is a good fit if you want:

• The smallest footprint in this comparison
• A complete guided strength system in one machine
• Fast selectorized weight changes
• Full-body training without managing plates, racks, and multiple stations
• A machine you can fit without committing to a larger dedicated gym space

The limitation is upgrade depth. The G1B is best viewed as a strong self-contained machine, not a platform you keep expanding with major add-on stations. That is where the G3B starts to make more sense.

Body-Solid G3B: Best Step-Up from the G1B

The Body-Solid G3B is the better choice if you like the compact single-stack category but want a more complete training station than the G1B.

“More complete” means a few specific things here:

• More press variety: the multi-grip press arm supports chest, incline, and shoulder press movements.
• More cable exercise flow: the high, mid, and low pulley layout is designed for quick exercise changes without constant cable swapping.
• More listed exercise options: the G3B product page calls out movements like lat pulldowns, triceps pressdowns, biceps curls, resistance ab crunches, seated rows, oblique bends, leg adduction/abduction, upright rows, lateral deltoid raises, and more.
• More lower-body expansion: the optional leg press/calf press attachment adds a true lower-body pressing path that the G1B does not offer in the same way.
• More resistance growth: the G3B can move from a 160 lb stack to an optional 210 lb stack.

The G3B is still not a large dual-stack machine. It is the step-up model for buyers who want a compact selectorized gym but do not want to stop at the most self-contained layout.

The G3B is a good fit if you want:

• A compact but more capable single-stack home gym
• More press and cable exercise variety than the G1B
• A better long-term setup for regular training
• The option to add a leg press/calf press or inner/outer thigh attachment
• A stronger stepping stone before moving into the G5B or G6B

The Biggest Difference: Self-Contained Value vs Expandable Platform

The biggest difference between the G1B and G3B is not just size. It is how each machine fits into your long-term home gym plan.

The G1B is a self-contained strength system. It gives you the essentials in a smaller footprint: press, pulldown, ab crunch, leg extension/curl, and seated row/low pulley work. Its value comes from replacing a lot of separate equipment decisions with one guided machine.

The G3B is a more expandable platform. It takes more floor space, but it gives you a more developed pulley layout, more press variety, a heavier stack upgrade option, and compatibility with larger attachments.

That is the core decision: compact all-in-one guided strength versus more complete step-up home gym with room to grow.

What Does “More Training Variety” Mean on the G3B?

The G3B is not automatically better because it is the more expensive model. It is better for certain users because the station layout gives you more ways to train.

The G1B covers the basics well. You get standard pressing, pulldowns, crunches, leg extension/curl, rows, curls, and other low-pulley movements.

The G3B goes further by adding a more versatile press arm and a more complete high/mid/low pulley setup. The product page specifically highlights chest press, incline press, shoulder press, mid-row, back hyperextension, lat pulldown, triceps pressdown, resistance ab crunch, triceps extension, lateral fly, biceps curl, seated row, oblique bend, leg adduction/abduction, upright row, lateral deltoid raise, leg extension, and leg curl.

That is the practical reason to step up. You are paying for a machine that gives you more exercise angles and a better foundation for regular training.

Which One Is Better for Small Spaces?

The G1B is the better choice for the smallest spaces because it measures 55" L x 47" W x 83" H.

The G3B requires more planning. Its listed floor space is 71" L x 63" W x 84" H, with a live working area of 75" L x 81" W x 84" H. That live working area matters because you need clearance to use the cables, seat, press arm, leg developer, and optional attachments comfortably.

If you are trying to fit a machine into a tight room, choose the G1B. If you have enough clearance and want a more capable training station, choose the G3B.

Which One Is Better for Regular Training?

The G3B is the better choice if you expect to train consistently and want more exercise angles.

The G1B is still a strong choice for regular home training if your priority is simplicity, guided movement, and a contained setup. It gives you a lot more structure than a basic rack-and-bench setup and can be easier for households that want pin-select weight changes instead of loading plates.

The G3B’s multi-grip press arm, no-cable-change pulley design, optional 210 lb stack upgrade, and compatible lower-body attachments make it a better long-term choice for someone who knows they will use the machine regularly and wants more room to progress.

For straightforward full-body training, the G1B is enough. For a more advanced long-term setup, the G3B is the better step-up.

Attachment and Upgrade Options

Attachments are one of the biggest reasons to choose the G3B over the G1B.

G1B included accessories and upgrade path

The G1B includes useful base accessories, including a lat bar, straight bar, ankle strap, ab/triceps strap, workout DVD, and water bottle/towel holder. It also comes with a 160 lb selectorized stack.

For most buyers, the G1B should be treated as a complete compact all-in-one machine rather than a major attachment platform. That is a strength when you want a clean, contained setup that works well without extra decisions.

G3B compatible attachments and upgrades

The G3B has the stronger upgrade path. Compatible options include:

• Leg Press / Calf Press Attachment: adds lower-body pressing with up to 420 lb of resistance.
• Inner / Outer Thigh Attachment: adds dedicated hip adduction and abduction training.
• Aluminum Pulley Upgrade: upgrades the original nylon pulley set for smoother operation and a more premium feel.
• Weight stack upgrade: moves the machine from a 160 lb stack to an optional 210 lb stack.

Important planning note: the G3B has space for one major attachment at a time between the leg press/calf press and inner/outer thigh attachment. So this is not “add everything and leave it all installed forever.” It is better to think of the G3B as a machine that can be configured around your priorities.

If lower-body pressing matters, the leg press/calf press attachment makes the G3B much more compelling than the G1B. If hip work or adduction/abduction training matters, the inner/outer thigh attachment gives the G3B another advantage.

When Should You Choose the G1B?

Choose the Body-Solid G1B if you want:

• The smallest footprint in this comparison
• A complete guided strength system in one machine
• A 160 lb selectorized stack with fast pin changes
• Chest press, lat pulldown, ab crunch, leg extension/curl, and seated row work
• A cleaner alternative to piecing together several separate strength stations
• A machine for one user, beginners, or straightforward full-body training

The G1B is the practical choice if you want a strong entry point into the Body-Solid G-Series home gym lineup without turning the room into a full equipment puzzle.

When Should You Choose the G3B?

Choose the Body-Solid G3B if you want:

• A better long-term home gym than the G1B
• More press, row, pulley, and cable exercise variety
• A compact but more capable selectorized machine
• An optional 210 lb stack upgrade
• The option to add leg press/calf press or inner/outer thigh training
• A stronger step-up before moving into the G5B or G6B

The G3B is the stronger choice if you already know you want more exercise variety and a machine you can configure over time.

Final Recommendation

If you want the most compact all-in-one guided strength machine in this comparison, choose the Body-Solid G1B. It is smaller, simpler to place, and strong enough to replace a lot of separate home gym equipment decisions.

If you want the better long-term choice for more frequent or more varied home gym training, choose the Body-Solid G3B. It takes more space, but it gives you more exercise variety, a better pulley and press setup, an optional 210 lb stack upgrade, and compatibility with meaningful lower-body attachments.

The G1B is the better fit for shoppers who want guided strength training in a smaller room without building a multi-piece setup. The G3B is the better fit for shoppers who want a machine they can grow into.

You can compare the individual product pages below:

• Body-Solid G1B Single Stack Home Gym
• Body-Solid G3B Multi-Station Gym

Still narrowing down Body-Solid options? You may also want to read our Body-Solid G3B vs G5B comparison next.

FAQ

Is the Body-Solid G3B better than the G1B?

The G3B is better if you want more exercise variety, a heavier stack upgrade option, and compatible add-ons like the leg press/calf press or inner/outer thigh attachment. The G1B is better if you want the most compact all-in-one guided strength machine in this comparison.

What is the biggest difference between the G1B and G3B?

The biggest difference is expandability. The G1B is a compact self-contained machine for guided full-body training. The G3B is a larger step-up model with more exercise variety and a better attachment path.

Which Body-Solid home gym is better for small spaces?

The G1B is better for small spaces because it measures 55" L x 47" W x 83" H. The G3B needs more room, with listed floor space of 71" L x 63" W x 84" H and a live working area of 75" L x 81" W x 84" H.

Does the G3B support a leg press attachment?

Yes. The G3B supports an optional leg press/calf press attachment with up to 420 lb of resistance. This is one of the biggest reasons to choose the G3B over the G1B if lower-body training matters.

Can the G3B use multiple attachments at once?

The G3B has space for one major attachment at a time between the leg press/calf press and inner/outer thigh attachment. Choose the attachment that best matches your training priorities.

Should beginners choose the G1B or G3B?

Beginners can use either machine. The G1B is easier to justify for guided full-body training and smaller rooms. The G3B is better if you expect to train consistently and want more long-term upgrade flexibility.

Is the G3B worth the higher price?

The G3B is worth the higher price if you want more exercise variety, a 210 lb stack upgrade option, and the ability to add lower-body attachments. If you want a compact, self-contained guided gym, the G1B may be the better fit.

What should I compare after the G1B and G3B?

If you like the G3B but want a more complete single-stack machine, compare the Body-Solid G3B vs G5B next.