Short answer: you do not need a physical SIM card in Taiwan if your phone supports eSIM. An eSIM does the same job, a data connection on a Taiwan network, but installs by QR code with no card to swap. This guide explains the difference so you can pick the right option for your trip.
What is the difference between a SIM card and an eSIM?
A SIM card is the small physical chip you insert into your phone. An eSIM is a digital version built into modern phones: you scan a QR code and the plan is installed, no chip required. Both connect you to a Taiwan carrier. The difference is convenience.
| Physical SIM card | eSIM | |
|---|---|---|
| Setup | Swap the physical card | Scan a QR code |
| Your home number | Removed while card is out | Stays on the phone |
| Risk | Easy to lose the tiny card | Nothing to lose |
| Where to get it | Airport or store | Online, before you fly |
Do you need a SIM card in Taiwan at all?
You need a data connection, not necessarily a physical card. If your phone is eSIM-ready and unlocked, an eSIM is the simpler choice: you set it up before you fly and land already online. A physical SIM only makes sense if your phone does not support eSIM.
How do I know if my phone can use an eSIM?
Dial *#06#. If you see an EID number, your phone supports eSIM. It also needs to be carrier-unlocked. iPhone XS and newer, Galaxy S20 and newer, and Pixel 3 and newer generally support eSIM.
What about pocket wifi?
Pocket wifi is a small device that shares one connection with several people. It suits groups, but you have to charge it, carry it, and return it. For a solo traveler or a couple, an eSIM is lighter and simpler. For a fuller comparison, see our guide to getting internet in Taiwan.
Frequently asked questions
Can I keep my home number while using a Taiwan eSIM?
Yes. The eSIM is a separate data line, so your normal number stays active for calls and texts if you want.
Is an eSIM cheaper than an airport SIM?
Often yes, and you save the queue. See Can I use eSIM at Taiwan airport?
Which is better for a first-timer?
If your phone supports eSIM, the eSIM. It is the lowest-hassle way to arrive connected.
Skip the card, keep it simple
A DiTrip Taiwan eSIM installs by QR before you fly and connects in 60 seconds on landing, on Taiwan Mobile 5G with local support. New customers get 10% off with code ditripgo2026: DiTrip Taiwan eSIM plans.