The difference between the G1 Game and the Z1FC is the screen size and design of the figure.

The G1 Game has a screen size of 15.6 inches while the Z1FC features a screen size of 16.1 inches.

The G1 Game comes with a magnetic smart cover, while the Z1FC was designed to be constructed with a built-in kickstand. The built-in kickstand design allows the Z1FC to support both landscape and portrait screen placement and be compatible with multiple angles, as well as being slimmer and more portable.

Other than that, both are identical in terms of refresh rate, resolution, colour gamut, brightness and other important parameters.