Most travellers from India plan their Taiwan connection around a data plan and stop there. The data plan matters, but the bigger surprise is the messaging app. For many travellers from India, WhatsApp handles almost every booking, driver and friend. In Taiwan, the everyday app is LINE: its operator describes it as the number one messaging app in Taiwan, used by over 90 percent of the population. Guesthouse hosts, tour guides and small businesses often expect to reach you there. So the setup that works best is simple: an eSIM Taiwan plan for the data, and LINE installed before you fly.
What locals use, and what that means for your phone
| Everyday task | What Taiwan commonly uses | Works on wifi alone? |
|---|---|---|
| Chatting with a host or guide | LINE | Only while you are on wifi |
| Getting around cities | Metro and buses paid with a stored-value transit card | The card works offline; route planning needs data |
| Finding your way on foot | Map apps with live transit times | No, it needs data on the move |
| Reading menus and signs | A translation app with a camera mode | Only if you download the language pack first |
| Getting online in public | Government wifi hotspots at stations, airports and tourist sites | Only at the hotspot |
The wifi question
Taiwan does have a large government wifi network, iTaiwan. Taiwan News reported thousands of access points at major transport stations, airports, freeway rest areas, national parks and tourist spots, and since 2020 users have been able to connect by agreeing to the terms rather than completing a full login.
It is useful, and it is not a substitute for mobile data. A hotspot covers the place you are standing in. It does nothing for the walk from the station to your hotel, the bus stop where you are checking the arrival time, or the message your guesthouse host sends while you are on the train. Use public wifi for large downloads, with the usual care described in the guide to safer public wifi, and let the data plan carry everything in between.
Setting up before you leave India
- Install the Taiwan data plan on home wifi, following the data eSIM installation steps. Android users can find the menu paths for their brand in the Android eSIM setup guide.
- Install LINE and set up your account while you are still at home, so you are not doing it in an arrivals hall.
- Ask your guesthouse, tour operator or contact in Taiwan for their LINE ID and add them before you fly.
- Download offline maps for each city on your route and the Chinese language pack in your translation app.
- Switch off data roaming on your Indian SIM. Leave the SIM in the phone so family can still call and send messages on your usual number.
- On landing, set mobile data to the Taiwan line and make sure its roaming switch is on.
That fifth step is the one people skip. An Indian SIM left roaming can run up charges alongside the travel plan, and the explainer on what data roaming costs shows how quickly that adds up.
Cities, trains and the mountains
Taipei and the other big cities are dense, well-covered places where a data plan does its most steady work. The high-speed rail line down the west coast runs through populated country for most of the trip. The mountains are a different story. Coverage can thin out on mountain roads and in deep gorges, so download maps and save your accommodation details before heading into the hills, and agree pick-up times in person with any driver or guide.
One Taiwan plan covers the whole island, and it is a data plan. Relatives in India keep ringing your usual number, while LINE carries your local chats over the data line.
If Taiwan is one stop of several
Many trips from India pair Taiwan with Japan, South Korea or Hong Kong. Each has its own country plan: Japan, South Korea and Hong Kong. With three or more stops, the regional Asia plans may be simpler, as long as each of your countries appears on the plan’s list. The Asia guide to country and regional plans walks through the decision, and if South Korea is on the route, the Korea guide for travellers from India covers that country’s own app habits.
Conclusion
Taiwan rewards a little preparation at home. Put the data plan on your phone, install LINE and add your contacts before the flight, and treat the public wifi as a bonus rather than a plan. Friends from Taiwan who later visit you in India can use an India plan.
Frequently Asked Questions
Does Taiwan support eSIM?
Yes. Any eSIM-capable, carrier-unlocked phone can use a travel eSIM there. Set it up in India before the trip.
Can I get a Taiwan eSIM with a phone number?
The Numero eSIM Taiwan plan is a data plan. Keep your Indian SIM installed so your usual number still rings, and use LINE over data for local chats.
Do I need LINE in Taiwan?
It helps a lot. Many hosts, guides and small businesses in Taiwan use LINE as their main messaging app.
Is public wifi in Taiwan enough without a data plan?
It covers stations, airports and tourist sites, but not the time in between. Most visitors use both.
