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Casio's new rugged WSD-F30 Wear OS smartwatch has improved dual-layer display, smaller case | Android Central
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Casio Pro Trek Smart WSD-F30 smartwatch has a smaller case, better power management, and improved dual-layer display – G-Central G-Shock Watch Fan Blog
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Casio's new rugged WSD-F30 Wear OS smartwatch has improved dual-layer display, smaller case | Android Central
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