ESIM IN TAIWAN
The best eSIM for Taiwan is the one you don't have to think about. One eSIM for Taipei, Taichung, Kaohsiung and everywhere in between. No roaming bill, no SIM swap, no commitment.
Covers Taipei to Kaohsiung
No Passport Needed to Activate
Free Data, Data per GB, or Unlimited Data
One eSIM for 176 + Countries
Trusted by 1.3M+ users
Global data & calling
One eSIM for the globe
A Free Global Connection
Compare all plans
Why Firsty is different in Taiwan
Same price as everywhere else Roaming in Taiwan with your home operator gets pricey fast. With Firsty it's €0.98 per GB on Prepaid and from €2/day on Unlimited, the same as in Japan, Korea or Italy. No Asia surcharge. Buy data that never expires Most travel eSIMs make you buy GBs that expire in 7 or 30 days: use it or lose it. With Firsty Prepaid, the GBs you buy stay on your account forever. Bought 10 GB and only used 4 between Taipei and Tainan? The other 6 are still there for Tokyo, Seoul, or anywhere else.
How it works
How Firsty works in Taiwan
How much data do you need in Taiwan?
Taipei city break
Taipei + the west coast
Round-the-island / remote worker
Real benchmarks
Aww, We love you too!!
Where's Life Taking You next?
Get connected to the Firsty Network
Price Table and Comparisons
Prepaid (use anywhere, never expires)
Data | Price | €/GB |
|---|---|---|
1 GB | €4,50 | €4,50 |
3 GB | €7,50 | €2,50 |
5 GB | €9,50 | €1,90 |
10 GB | €17,00 | €1,70 |
20 GB | €26,40 | €1,32 |
50 GB | €49,00 | €0,98 |
Unlimited (day pass or monthly)
Duration | Price | €/day |
|---|---|---|
1-6 days | €3,00/day | €3,00 |
7-14 days | €2,75/day | €2,75 |
15-19 days | €2,50/day | €2,50 |
20+ days | €2,20/day | €2,20 |
Monthly subscription | €59/month | €2,00 |
Where in Taiwan does Firsty work?
Taipei: Fast 4G and 5G across the city, including Taipei MRT stations and tunnels. Jiufen & the north coast: Good signal in Jiufen, Keelung and along the coast road to Yehliu. Taichung & Sun Moon Lake: Strong in the city and reliable around the lake and Ita Thao. Tainan & Kaohsiung: 4G and 5G in both cities, and along the High Speed Rail line. Hualien & Taroko Gorge: Good in Hualien city; patchy deep in the gorge and on hiking trails. Alishan & the mountains: Signal at the main Alishan stops; expect gaps on remote trails and mountain roads.
Firsty Taiwan eSIM vs. a Taiwan SIM card at the airport
Taoyuan Airport has tourist SIM counters for Chunghwa Telecom, Taiwan Mobile and FarEasTone in the arrivals hall. They work, but you queue after a long flight, hand over your passport, and swap out your home SIM. A Taiwan eSIM from Firsty is ready before you board.
Firsty Taiwan eSIM | Airport tourist SIM card | |
|---|---|---|
Setup | In the app, before you fly | At the airport counter after landing |
Passport required | No | Yes |
Keeps your home SIM active | Yes, for calls and 2FA texts | No, the physical SIM is swapped out |
Unused data | Never expires (Prepaid) | Lost when the plan ends |
Works in other countries | Yes, 185+ | Taiwan only |
Free option | Yes, ad-supported | No |
Questions and answers
As we develop our app you might encounter things you're not sure of. We're here to help. Below you'll find frequently asked questions on the Firsty eSIM, Firsty's data plans, and more.
Is it worth getting an eSIM for Taiwan?
Yes, if you want to skip the airport counter and keep your home SIM in your phone. Taiwan's tourist SIMs are good value, but you'll need your passport plus a second ID and a SIM swap. Firsty installs before you fly and connects the moment you land.
What's the best eSIM for Taiwan?
The one that fits your trip. For a few days of maps and LINE, Firsty Free costs nothing. For HSR day trips with hotspot, Unlimited from €2/day means no counting. Doing Taiwan plus Japan or Korea? One Firsty eSIM covers them all at the same price.
Where can I buy an eSIM for Taiwan?
In the Firsty app, before you leave home. No shop, no QR code, no airport counter. Download the app, sign up and tap "Activate". The eSIM installs itself and switches on when you land in Taiwan.
Does Firsty work everywhere in Taiwan?
In cities and along the main travel routes, yes. Firsty uses Taiwan's major networks, which cover Taipei, Taichung, Tainan, Kaohsiung and Hualien well. Expect gaps deep in Taroko Gorge, on remote Alishan trails and on high mountain roads.
Does Firsty work on the Taipei MRT and High Speed Rail?
Yes. The Taipei MRT has signal in stations and tunnels, and the High Speed Rail is covered along the whole Taipei–Kaohsiung line. Expect brief drops in the longer tunnels.
Is there an unlimited data eSIM for Taiwan?
Yes. Firsty Unlimited starts at €2/day and includes hotspot, so your laptop or travel buddy can get online too. You get 5 GB a day at high speed, then 512 Kbps until your next day or top-up. Save big downloads for hotel Wi-Fi.
Can I use my US phone in Taiwan?
Yes. If your phone supports eSIM and is carrier-unlocked, you can add Firsty alongside your US SIM. Keep your home line for calls and 2FA texts and use Firsty for data, so you avoid your carrier's international roaming charges.
Can I make calls and send SMS with Firsty in Taiwan?
Firsty is a data eSIM: calls and texts work through LINE, WhatsApp, FaceTime or any internet-based app. You won't get a Taiwanese number, so services that need a local number for SMS codes won't work. International calling to 200+ countries is available in the app.
What phones work with Firsty in Taiwan?
Any carrier-unlocked, eSIM-compatible phone bought in the EU, US, UK, Canada, Australia or Japan after 2018. That's iPhone XS or newer, recent Samsung Galaxy, Google Pixel and most other modern Android phones. US phones work too, as long as they're unlocked.