eSIM in Taiwan: which plan to choose in 2026?

How does an eSIM work in Taiwan, and is your phone compatible?

An eSIM is a digital SIM card built into your phone that downloads an operator profile instead of requiring a physical plastic chip. After purchase, the provider generally sends you a QR code, an installation link or activation through its app. Your smartphone then saves this profile and connects to a Taiwanese mobile network when you activate the line and data upon arrival.

The practical difference compared with a physical SIM is simple: you can buy and install your plan before departure, from home, without having to look for a shop at Taoyuan Airport. A travel eSIM is usually intended for mobile data. It works as a secondary line alongside your usual card, provided that your device supports Dual SIM functionality.

An eSIM is not a magical subscription independent of local networks: it uses a Taiwanese operator’s infrastructure, depending on the provider’s agreements. Your phone will therefore connect to a network such as Chunghwa Telecom, Taiwan Mobile or Far EasTone, sometimes automatically. You do not need to understand the technical details to use it, but knowing the partner network helps you anticipate coverage, especially if your trip includes mountains, islands or remote roads.

• The iPhone XS, XR and later models are generally eSIM-compatible. However, some iPhones sold in particular markets may have restrictions: check your exact version under Settings > General > About.
• With Samsung, recent Galaxy S, Z Fold and Z Flip ranges, as well as some high-end Galaxy A models, offer eSIM support. Compatibility varies depending on the country of sale and the original operator.
• Recent Google Pixel phones, from the Pixel 3 onwards in many markets, support eSIM. Imported models or devices intended for certain operators may be exceptions.
• Other compatible devices are available from Xiaomi, Motorola, Huawei, Oppo and Sony, but you need to check the exact model: having a SIM tray neither guarantees nor rules out eSIM support.
• Your phone must be unlocked. A phone locked to a French, Swiss, Belgian or Canadian operator may reject a third-party provider’s profile, even if it is technically compatible.
• For a quick check, look for Add eSIM or Add mobile plan in your network settings. The #06# code may also display an EID, an identifier typically associated with eSIM functionality.

Should you choose a local Taiwan eSIM or a regional Asia plan?

For a trip exclusively to Taiwan, a local Taiwan eSIM is generally the simplest and most economical choice. It concentrates its data on the island and may offer more gigabytes for a given period. It is perfectly suited to a Taipei–Hualien–Tainan–Kaohsiung itinerary, a language course or a getaway to Penghu, provided you check the advertised coverage for the islands.

An Asia-Pacific plan becomes more attractive when Taiwan is just one stop on your trip. This is the case for a Hong Kong–Taipei–Japan itinerary, a journey combining South Korea and Taiwan, or a longer route through Singapore, Thailand, Vietnam or Malaysia. You avoid buying and reinstalling a profile in every country, which is particularly convenient during short connections.

This convenience has a downside: the price per gigabyte is often higher, and the list of covered countries must be read carefully. A regional eSIM may include Japan and Korea without including Macau, or offer Hong Kong without mainland China. If you are then travelling to mainland China, also check the network rules, how Google services are handled and the roaming included in the plan, rather than assuming that Asia is one single zone.

• Choose a local plan if you are staying only in Taiwan and want the best balance between data allowance and validity period.
• Choose a regional eSIM if you are visiting at least two countries and simplicity matters more to you than the price per gigabyte.
• Check the list country by country: Hong Kong, Japan, South Korea, the Philippines and mainland China are not automatically included together.
• For a short stay abroad, you can keep your Taiwan profile installed and add a second regional profile, then switch the data line.

What do traveller reviews reveal about eSIMs for Taiwan?

Traveller feedback is generally positive: most people appreciate being connected as soon as they leave the plane, without queuing at a counter or changing their usual number. Taiwan has robust mobile infrastructure, and users often report a stable connection in cities, on transport and at classic tourist destinations. Easy access to Google Maps, LINE, Google Translate and online bookings genuinely improves the comfort of a trip.

Reported difficulties concern the Taiwanese network itself less than the initial setup. An eSIM line that has been installed but not selected for mobile data, data roaming left disabled or an APN that has not been entered can create the impression that the plan is not working. This is why it is worth keeping the QR code, the provider’s instructions and a screenshot of your order confirmation until the connection has been tested.

Reviews also encourage travellers to be realistic about so-called unlimited plans. They are convenient for avoiding the need to monitor every megabyte, but may include a speed cap, a reduction after a certain amount of usage or a restriction on connection sharing. The best Taiwan eSIM plan is therefore the one whose rules match your actual usage, not necessarily the one where the word unlimited is displayed most prominently.

• Praised feature: early installation and a fast connection upon landing.
• Praised feature: good stability in cities, stations, hotels and major tourist attractions.
• Important: read the terms regarding reduced speeds, hotspot use and top-ups before purchasing.
• Important: support quality varies between providers; choose one with accessible assistance in case of difficulties.

Can you keep your number, make calls and share your connection in Taiwan?

Yes, you can generally keep your usual number while using a Taiwan eSIM for Internet access, but most travel eSIMs are data-only. They do not provide a Taiwanese number or include traditional calls. With Dual SIM, your French card remains active to receive certain SMS messages, while the eSIM becomes your mobile data line.

Configure the lines carefully to avoid accidental roaming: assign the eSIM to Cellular Data, disable automatic cellular data switching if your phone offers this option, and turn off roaming on your primary SIM. You can then continue receiving banking or login codes by SMS on your French number. Be aware that receiving an SMS is often free, but receiving or making a traditional call abroad may be charged by your original operator.

WhatsApp, Signal, Telegram, FaceTime audio, Messenger and LINE calls work using the eSIM’s data while keeping your existing account number. You do not need to change your WhatsApp number. To call a hotel, restaurant or local driver who does not offer messaging, a travel eSIM does not always replace a real voice line: use LINE when possible, ask your accommodation to call, or choose a local SIM with a number if this is important to you.

Hotspot allows you to connect a computer, tablet or your companion’s phone to your eSIM, if the provider permits it. This is very useful on a train, but highly data-intensive: a Windows update, cloud backup or HD video call can use up several gigabytes much faster than expected. If you reach the limit, check whether a top-up is available in the app or buy an add-on; do not delete your active eSIM to try a new installation.

• Keep your usual SIM active for important SMS messages, but disable its data roaming.
• Explicitly assign the eSIM to Internet access and disable automatic switching between lines.
• Use WhatsApp, LINE or Signal for data-based calls; your account and contacts remain the same.
• Check whether hotspot use is permitted before choosing a plan, especially if you work remotely.
• Monitor your usage in the provider’s app and in your phone’s settings so you can anticipate a top-up.