Absolutely! One of the great advantages of eSIM technology, especially for travelers exploring Asia, is the ability to utilize Dual SIM functionality. This means you can keep your home physical SIM card active in your phone alongside your EastESIM. We often recommend setting your physical SIM for calls and SMS (especially for receiving important verification codes) and dedicating your EastESIM for all your data needs while traveling. This setup ensures you stay connected with local data speeds in places like Singapore or Hong Kong, without missing important messages from home.
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Can I keep my primary physical SIM active while using an EastESIM?
Updated April 22, 2026
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