Which is bigger Yamaha c3 or g3 piano?

Yamaha C3 and G3 are both grand pianos, but the C3 is larger. The C3 is 6'1" long, while the G3 is 5'10" long. The C3 also has a wider soundboard and a larger keybed. This gives the C3 a richer, fuller sound and a more responsive action.