Casio G-Shock “CasiOak” Showdown: GA-2100 vs. GA-B2100 vs. GM-B2100 – The Ultimate 2025 Guide
Casio’s GA-2100 “CasiOak” launched in 2019 as the slimmest G-Shock at 11.8 mm. The GA-B2100, released in 2022, adds solar charging and Bluetooth while keeping a similar size. The GM-B2100 uses a full-metal case and screw-back design, weighing about 165 g. The MR-G B2100, released in 2024, features titanium, GPS time, and a price near $4,000–$5,000.