Absolutely! Most modern eSIM-compatible phones feature 'Dual SIM' functionality, meaning you can keep your home physical SIM card active alongside your eSIMBuy digital eSIM. This is incredibly handy for travelers. We often recommend setting your physical SIM for calls and SMS (especially for receiving crucial 2FA codes or calls from home) and using your eSIMBuy plan for all your data needs. This ensures you're always connected with the best $/GB for data, while staying reachable on your primary number.
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Can I maintain my physical SIM card as active while using an eSIMBuy eSIM?
Updated April 22, 2026
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