About eSIMs
What they are and how they differ from the card you already have.
What is an eSIM?
A digital SIM already built into your phone: you install it by scanning a QR code, with no card to insert. It works alongside your usual SIM and you can switch it on or off from Settings.
Do I lose my number or my WhatsApp?
No. Your SIM and your number stay active, and WhatsApp works with your usual number with nothing to set up: the eSIM handles your travel data (and the minutes, on plans that include them).
Can I make calls or receive texts?
Most plans are data only. Calls and texts still go through your usual SIM, so your operator may charge you roaming for them. Some destinations do have plans that include minutes: where they exist, they are marked on that destination's page.