[Casio] Is there a difference between F91W models beyond aesthetics?

Is there any difference between the submodels of the F91Ws other than aesthetic and sometimes the case material?

The F91WG-9 seems to just be the base F91W with a yellow outline instead of blue, but costs 2-3x more. I didn't notice any functionality that the F91WG-9 has that the much cheaper option doesn't. Is it a rarity thing?

Submitted May 01, 2018 at 12:08AM by doyourlabs
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