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How to choose an eSIM for Taiwan

4 min read · Updated September 13, 2026
For a Taiwan eSIM, both fixed-data and daily-unlimited products are common. Compare the total cost of both approaches over the same trip length, and check the network the product supports and the official service area for the places you're visiting before choosing.

Taiwan's main carriers

Taiwan's main carriers are 中華電信 (Chunghwa Telecom), 台灣大哥大 (Taiwan Mobile), and 遠傳 (FarEasTone). Which network an eSIM product uses varies by product, so rather than generalizing that one carrier is better, check the network the product lists and the official service area for the places you're visiting.

Unlimited vs fixed-data

In Taiwan, "daily unlimited" products (e.g., 3-day or 5-day unlimited) are also common. If you use little data, a small fixed-data plan may be cheaper, so compare the total cost of fixed-data and unlimited plans over the same period based on your expected use.

How much you'll need

Multiply your trip days by your expected daily use. A 3–4 day trip where you expect about 500MB–1GB a day, mostly for maps, messaging, and social media, works out to roughly 3–5GB (a sample calculation). If you watch a lot of video or use a hotspot heavily, you'll need more.

What to check when choosing

  • A validity period that matches your trip days
  • Whether tethering is allowed
  • Whether the local network it connects to is stated

FAQ

Is unlimited better for Taiwan?
Compare the total cost of a fixed-data plan and a daily-unlimited plan over the same trip length. If you use little data, a small fixed-data plan may be cheaper, and even if you pick unlimited you should check the speed-limit terms.
Which network is good?
It depends on where you're traveling. Rather than generalizing that one carrier is better, it's more accurate to check the network the product lists and the official service area for the places you're visiting.
How many GB is right for a trip of a few days?
Multiply your trip days by your expected daily use. A 3–4 day trip where you expect about 500MB–1GB a day, mostly for maps and messaging, works out to roughly 3–5GB (a sample calculation).
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