Cable machines are different from home gym systems because they focus on adjustable cable resistance, while home gym systems usually combine several training stations or functions into one broader setup. A cable machine is built around the line of pull. A home gym system is built around covering many exercise types in one unit.
The practical difference is specialization versus all-in-one coverage. Cable machines can be excellent for rows, pulldowns, curls, presses, rotations, and accessory work. Home gym systems may add presses, leg stations, benches, or guided paths that make the setup feel more complete but less cable-focused.