The Ricoh WG-6, like the latest GoPro, uses cropping to be able to provide movie stabilisation (SR+, for “shake reduction”).
This means the lens’ angle of view is less wide when used at its widest setting with SR+ than without it. Interesting about Ricoh’s comparison shown in the vide below is that you can see the optical zoom actually captures more detail than the SR crop. This is because the SR crop is made from a wider image, so is essentially digitally zoomed. (The video is from March, but since only 500 people had seen it when I spotted it, I figured it’s worth showing.)