Casio F-91W vs Casio G-Shock GA-2100 (CasiOak)
Both are everyday / casual watches in the entry tier — here's how the specs differ and which to pick.
| Spec | Casio F-91W | Casio G-Shock GA-2100 (CasiOak) |
|---|---|---|
| Movement | Quartz | Quartz |
| Water resistance | 30m | 200m |
| Case size | 34mm | 45.4mm |
| Crystal | acrylic | mineral |
| Style | Everyday / casual | Everyday / casual |
| Price tier | Entry | Entry |
Which should you buy?
- the Casio G-Shock GA-2100 (CasiOak) takes more water (200m) — the one to pick if you actually swim or dive
- the Casio G-Shock GA-2100 (CasiOak) has a mineral crystal — more scratch-resistant for daily wear
- the Casio F-91W wears 34mm vs the Casio G-Shock GA-2100 (CasiOak)'s 45.4mm — choose by wrist size
Where to buy
Check the Casio F-91W price on Amazon →
Check the Casio G-Shock GA-2100 (CasiOak) price on Amazon →
FAQ
What's the difference between the Casio F-91W and the Casio G-Shock GA-2100 (CasiOak)?
Both are everyday / casual watches in the entry tier. The Casio F-91W is quartz, 30m water resistance, 34mm, acrylic crystal; the Casio G-Shock GA-2100 (CasiOak) is quartz, 200m water resistance, 45.4mm, mineral crystal.
Which has better water resistance, the Casio F-91W or the Casio G-Shock GA-2100 (CasiOak)?
The Casio G-Shock GA-2100 (CasiOak), rated 200m, versus 30m on the other. Pick 100m or higher for swimming and 200m+ for diving.
Which is better value, the Casio F-91W or the Casio G-Shock GA-2100 (CasiOak)?
Both sit in the entry tier, so it comes down to movement, water resistance and case size — see the spec table above.
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