Can I maintain my physical SIM card's functionality alongside an eSIM Routes plan?

Absolutely. Modern smartphones typically feature Dual SIM technology, allowing you to use both your physical SIM card and an eSIM Routes plan concurrently. This is particularly advantageous for travelers who wish to retain their home number for calls and SMS (especially for two-factor authentication) while dedicating the eSIM for high-speed data abroad. eSIM Routes recommends configuring your physical SIM for calls and texts, and setting your eSIM as the primary source for mobile data. This setup ensures you remain connected and accessible throughout your itinerary, from London to Lisbon.