Best eSIM for Taiwan 2026: 11 Providers Compared

Taipei's MRT, the high-speed rail and the west-coast cities all sit on 4G and 5G from Chunghwa Telecom, Taiwan Mobile and Far EasTone, while Alishan's trails and parts of Taiwan's east coast are uneven. Taiwan runs on data. From navigating Taipei's MRT and hailing a scooter in Kaohsiung to translating a night-market menu in Traditional Chinese or checking a typhoon warning from the Central Weather Administration, your trip depends on a mobile connection that just works. An eSIM is the simplest way to get one: install it before you fly, land in Taoyuan or Kaohsiung International, and you are online the moment your phone finds a signal. No SIM tray, no counter queue, no swapping cards. This guide compares the best eSIM options for Taiwan, explains what Chunghwa Telecom, Taiwan Mobile and Far EasTone bring to the table, and helps you choose the right plan for your trip length and data habits.

Chunghwa, Taiwan Mobile or Far EasTone: the nPerf 2026 results

nPerf's Taiwanese barometer for July 2025 to June 2026 ranks Chunghwa Telecom first, ahead of Taiwan Mobile and Far EasTone (nPerf barometer, 2026). The gap shows in download speed: Chunghwa averaged 117.43 Mbps, against 81.66 Mbps for Taiwan Mobile and 74.04 Mbps for Far EasTone.

In Taipei, Taichung, Tainan and Kaohsiung, all three are quick enough for anything a visitor does. In the mountains and on the east coast, the network behind your plan matters more, since it can decide whether you have signal on a trail at Alishan or in Taroko. The networks used by each Simsima Taiwan plan are listed in its details.

Taiwan switched off 3G: check your phone before you fly

Taiwan's Tourism Administration warns that the country's operators shut down their 3G networks on June 30, 2024, and that a phone or SIM card without 4G voice (VoLTE) cannot make calls in Taiwan, including to the emergency numbers 112, 110 and 119 (Taiwan Tourism Administration).

Any phone that supports eSIM handles 4G data, so a travel eSIM works for maps and messaging. The point to check is calling: a Simsima eSIM is data only, so your calls in Taiwan, including emergency calls, rely on your main line's 4G voice support while roaming, or on internet calls through LINE or WhatsApp. If in doubt, ask your home carrier whether VoLTE roaming works in Taiwan.

Tourist SIMs at Taoyuan Airport

Chunghwa Telecom, Taiwan Mobile and Far EasTone run counters in the arrivals halls at Taoyuan International, selling tourist SIMs for set periods against your passport. Local data is good value; the catch is the queue after a long flight, and some counters may ask for a second ID document.

A local tourist SIM gives you a +886 number. A travel eSIM is installed before you leave, so you skip the counter and are online on the airport train into Taipei. Compare both with the prices in the tables below.

Weak points in Taiwan: no +886 number, calls that depend on VoLTE

• No +886 number: some Taiwanese apps and delivery services send codes to a local number, and restaurants or B&Bs that call back will reach your home number.
• Data only, with no Taiwanese calls or SMS; LINE is the messaging app nearly everyone uses in Taiwan, and it runs on data.
• Signal is uneven on Alishan's trails, deep in Taroko Gorge, on high routes around Hehuanshan and on parts of the east coast between Hualien and Taitung.
• Your phone must support eSIM and be carrier-unlocked, and hotspot sharing depends on the plan.

Taiwan eSIM Plans Compared (2026)

Here is a comparison of the main Taiwan eSIM plans against the leading international providers. Simsima offers plans on the local networks, with transparent pricing.

Unlimited data plans

Capped data plans

Compare current prices in the tables for the trip length you need. A Simsima plan activates on arrival, once the eSIM connects to a Taiwanese network.

How to install your Taiwan eSIM

Installation takes about three minutes and is best done at home on your regular Wi-Fi, before you fly. After purchase, Simsima sends a QR code and a set of manual activation credentials by email. On iPhone, open Settings, tap Cellular (or Mobile Data), then Add Cellular Plan or Add eSIM, and scan the QR code with the phone's camera. On Android, the path is similar: Settings, Connections or Network, SIM manager, Add eSIM. Once the profile downloads, label it something like "Taiwan" so you can find it easily, and turn on data roaming for that line; it activates on its own when it connects to a local network after you land.

• Buy your Taiwan eSIM on Simsima before you fly
• Open the activation email on a device other than the phone that will use the eSIM
• Scan the QR code from your phone's eSIM setup screen while connected to Wi-Fi at home
• Label the new line "Taiwan", set it as your data line and turn on data roaming for that line only
• On landing at Taoyuan or Kaohsiung, the eSIM activates on its own when it connects to a Taiwanese network
• Confirm you have signal in the airport, then keep your home line for SMS and calls

What if the eSIM doesn't activate on landing?

If your line shows "No Service" after landing, run through this checklist before contacting support. First, confirm the Taiwan line is toggled ON in your cellular settings and set as the data line. Second, enable data roaming for that specific line — this is required on most travel eSIMs even though you are physically in the destination country. Third, restart the phone: a reboot forces a fresh network scan and resolves most first-connection failures. Fourth, in Settings, manually select a network operator listed in your plan's details instead of Automatic. If none of that works, contact Simsima support rather than deleting the profile: a deleted eSIM cannot be reinstalled on your own.

Taipei, Taroko and Kaohsiung in ten days: how much data?

A common loop: four days in Taipei with day trips to Jiufen and Shifen, the train down the east coast to Hualien for Taroko Gorge, then across to Kaohsiung and Tainan by high-speed rail, ending at Sun Moon Lake or Alishan. MRT routes, train bookings, LINE messages, night-market menu translations and photos come to about 8 to 12 GB.

A capped plan of 10 to 15 GB for 15 days covers it, or an unlimited plan if you upload video daily or work remotely from Taipei. On unlimited plans, speed is reduced after the daily quota until the next day.

Typhoons, earthquakes and mountain permits

From summer into autumn, typhoons can close mountain roads, cancel ferries to the outlying islands and change train timetables at short notice. The Central Weather Administration publishes typhoon and earthquake information in English, and having data on the road lets you follow road closures to Taroko or Alishan as they happen.

Hikers should know that some high-mountain areas require entry permits for foreign visitors, as the Tourism Administration notes, and that signal on those routes is rare. Download offline maps, and leave your route with your accommodation.

Taiwan with Japan or Hong Kong

Taiwan is often combined with Japan, a short flight from Taipei to Okinawa, Osaka or Tokyo, or with Hong Kong. Each has its own networks, so a Taiwan plan stops working when you land in the next country.

For two countries, two country plans installed at home are simplest. For a longer East Asia trip, a regional Asia plan that lists Taiwan, Japan and Hong Kong saves switching profiles; check the country list before you buy.

Asia eSIM: The Complete Guide to Multi-Country Travel in 2026

Traveling beyond Taiwan?

Get a multi-country plan and save on your mobile data.

Japan

South Korea

Hong Kong

Thailand

Japan

South Korea

Hong Kong

Thailand

Or choose another country:

Taiwan eSIM plans — Browse and compare all available Taiwan eSIM plans on Simsima

eSIM-supported devices — Check whether your phone supports eSIM before you buy a Taiwan plan

How Simsima works — Learn how to buy and install an eSIM in a few minutes, and how it activates on arrival