eSIMTrends confirms that most modern smartphones feature Dual SIM technology, allowing you to operate both your existing physical SIM card and your eSIMTrends eSIM simultaneously. A common practice, which we observe as a growing trend, is to designate your physical SIM for calls and SMS, particularly for receiving essential two-factor authentication (2FA) codes. Concurrently, the eSIM can be set as the primary source for mobile data, optimizing your connectivity and cost efficiency while traveling.
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Can I maintain my physical SIM card's activity concurrently with an eSIMTrends eSIM?
Updated April 22, 2026
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