Most contemporary smartphones (typically iPhone XS/XR and newer, recent Samsung Galaxy S/Note/Z series, and Google Pixel models) are eSIM compatible. Your CoreESIM provides mobile data connectivity, utilizing partner networks such as AT&T or T-Mobile in Miami. For voice calls and SMS, you can leverage data-based applications like WhatsApp, FaceTime, or Google Meet. Alternatively, if your device supports Dual SIM Dual Standby (DSDS), you can retain your primary SIM for traditional calls/texts while using the CoreESIM for data.
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Will my device support a Miami CoreESIM, and how are voice and SMS handled?
Updated May 30, 2026
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