Taiwan 
Without the right mobile setup, you could find yourself in the arrival hall at Taoyuan suddenly missing maps, payment apps, and contact with your hotel. The most common mistake is relying on expensive roaming from Sweden or buying a “tourist card” without checking if your phone actually supports eSIM or local bands.
Do Swedes Need eSIM or is WiFi Enough in Taiwan?
Taiwan has a good mobile network and unusually abundant free WiFi, but WiFi rarely suffices as the only solution. Many logins require a Taiwanese number or at least stable data when moving between MRT, buses, and taxi queues.
A local SIM or eSIM allows you to use Google Maps in the alleys around Ximending, order food, and receive booking notifications without interruptions. WiFi is best as a complement, not as plan A.
What Do SIM and eSIM Cost in Taiwan?
Prices vary with promotions and seasons, but tourist packages are often clear and straightforward. Expect that unlimited data for a couple of weeks usually costs about the same as a dinner in Taipei.
| Options in Taiwan | Typical Validity | Data | Approx Price in SEK | Good for |
|---|---|---|---|---|
| Tourist SIM at the airport | 5 to 30 days | Often unlimited | 150 to 450 | Smooth start right upon landing |
| eSIM via app or website | 7 to 30 days | 1 to 20 GB or unlimited | 120 to 500 | You want to be online before landing |
| Pocket WiFi for rent | 1 to 30 days | Shared among several | 200 to 700 | Family or multiple devices |
| Swedish roaming | Per day or per MB | Varies | Often expensive | Only for emergencies |
Where to Buy SIM in Taiwan Without Hassle
Taoyuan Airport and Kaohsiung Airport have sales counters where you can get a SIM in just a few minutes. Have your passport ready, registration is standard and quick.
In Taipei, you can also buy at mobile stores and some convenience stores, but the airport is the easiest option if you want to get started right away. On VIZA.se, you can check exactly which documents are required for your trip.
Tip: Ask the staff to activate the card on-site and test that a webpage loads before you leave.
Does eSIM Work in Taiwan and What Should You Check on Your Phone?
eSIM works well in Taiwan, but only if your phone is unlocked and supports eSIM. The advantage is that you can keep your Swedish number active for bank ID, SMS, and two-factor codes while using Taiwanese data.
Also, check that the eSIM plan actually applies in Taiwan and not just in “Asia” with exceptions. If you receive a QR code, ensure you have internet when adding the profile, or use the airport’s WiFi.
How Much Data Do You Need in Taiwan?
Taipei encourages constant map usage, and night markets involve a lot of images and videos. At the same time, the network is fast, so you can burn through data quicker than you think.
A solo traveler who only navigates, chats, and books transport often manages with 5 to 10 GB over two weeks. If you upload a lot of videos or work remotely, choose unlimited data or larger packages.
WiFi in Taiwan, What is Good and What is Risky?
Free WiFi is available in cafes, hotels, and many public places. It is often stable but can be overloaded in the evenings.
Avoid logging into banking and sensitive services on open networks. If you must, use mobile data or a VPN that you have already installed.
Tip: If the hotel WiFi requires login in a browser, some apps may struggle until you manually open a page.
Practical Tips for Connectivity in Taipei, Hualien, and the Islands
In Taipei, coverage is strong even in the subway, but it can fluctuate in mountainous areas. If you are heading to Taroko, Alishan, or out to smaller islands, it may be wise not to choose the smallest data package.
Also, keep an eye on your mobile settings for data roaming; it should be off for your Swedish SIM and on for your Taiwanese profile if you are using eSIM. Double-check this before leaving the airport.
- Bring a SIM eject tool; otherwise, a paperclip can save you.
- Set a data reminder on your phone if you have a GB package.
- Save your eSIM QR code as a PDF in offline mode if you receive it in advance.
- Take a screenshot of the hotel address in Chinese in case the map loses connection.
Payment Apps and Transport Made Easier with Local Data
With local data, it becomes easier to use maps for MRT exits, find the right bus at Taipei Main Station, and order a taxi when it rains. Many travelers also combine data with an EasyCard for transport and small purchases, reducing the need to search for cash.
Aim to be online from the first hour in Taiwan. It saves time, reduces stress, and allows you to focus your energy on food, mountains, and night markets instead of connectivity issues.
