Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Casio G-SHOCK GA-B2100 is the Bluetooth and solar version of the slim 'CasiOak' analog-digital line. It keeps the octagonal bezel and compact 2100 case but adds Tough Solar charging and a Bluetooth link to the Casio Watches app for automatic time sync and phone-based settings. That puts it ahead of the original GA-2100, which has neither, and it undercuts most solar-connected G-SHOCKs on features per dollar. It suits people who want a tough everyday watch with analog looks and don't want to charge or reset it often.
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Lowest price we've seen: $165.00 on Nov 8 at Tillys. Tracked across 2 stores since Nov 8.
Owners rate the GA-B2100 as a strong upgrade over the original CasiOak, mainly for solar charging and Bluetooth time sync. Complaints center on the dim negative display and fiddly app pairing.
The Casio GAB2100BEG-1A is a G-SHOCK analog-digital watch in black. It is part of the 2100 Series.
