Absolutely! This is one of the most significant advantages for frequent flyers. Thanks to Dual SIM Dual Standby (DSDS) technology, your device can manage both your physical home SIM and your eSIMFlyer profile simultaneously. We recommend configuring your home SIM for calls and SMS – essential for receiving important 2FA codes or calls from family – and setting your eSIMFlyer as the primary data line. This way, you stay connected abroad without missing crucial communications, a perfect setup for multi-destination layovers in cities like Dubai or Istanbul.
HELP CENTER
Can I keep my primary physical SIM active while using eSIMFlyer?
Updated April 22, 2026
Was this answer helpful?
Related questions
Other answers in this topic that travelers found useful.
What is an eSIM and how does it function?
An eSIM, or 'embedded SIM,' is a digital SIM card built directly into your phone. Forget about tiny plastic cards, fiddly trays, or needing …
Read answerWhich smartphone models are compatible with eSIM On Trip?
eSIM On Trip is compatible with a wide range of newer smartphones from major manufacturers. This includes Apple iPhone XS , XR , and all sub…
Read answerHow do I activate my eSIM On Trip after purchasing it?
Activating your eSIM On Trip is quick and easy, getting you sorted in minutes. First, after purchase, you'll receive a QR code via email. Wh…
Read answerDoes eSIM On Trip provide calling and SMS functionality?
Most eSIM On Trip plans are optimized for high-speed data connectivity. This means they typically don't come with a local phone number for t…
Read answerIs it possible to top up or extend my eSIM On Trip data plan?
Yes, absolutely! If you find yourself needing more data or a longer duration while on your trip, topping up your eSIM On Trip plan is straig…
Read answer