Below you can see the front view size comparison of Ricoh GR III and Sony RX100 VII. Sony RX100 VII is 7mm narrower and 4mm shorter than Ricoh GR III but it is also 10mm thicker.
Ricoh GR III vs Sony RX100 VII - Front View
Ricoh GR III vs Sony RX100 VII - Top View
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.
Camera Size Comparison
Select Two Cameras for Size Comparison