Taiwan doesn't get the hype of Japan or Thailand, but it probably should. Taipei alone could fill a week -- night markets that go on forever, temples tucked between skyscrapers, and a food scene that punches way above its weight. Then there's Kaohsiung's harbour vibes, Taroko Gorge's marble canyon hikes, and Sun Moon Lake looking like something from a landscape painting.
The best part? Taiwan has some of the fastest and most reliable mobile networks in Asia. Getting an eSIM sorted before your trip means you're connected the second you land at Taoyuan, no queuing at airport SIM counters required.
Taiwan's Mobile Networks: What You're Connecting To
Taiwan has three major carriers: Chunghwa Telecom, FarEasTone, and Taiwan Mobile. Chunghwa is the biggest with the widest coverage, including rural mountain areas. FarEasTone and Taiwan Mobile are close behind, especially in cities. All three have solid 4G LTE and growing 5G networks.
When you grab a Taiwan eSIM from getesimonline.com, you'll typically connect through one of these carriers. Speeds in Taipei regularly hit 30-50 Mbps on 4G, which is faster than hotel Wi-Fi in most countries.
Taipei: Blazing Fast Everywhere
Taipei is a connectivity dream. You'll have strong 4G (and often 5G) signal in every neighbourhood -- Ximending, Da'an, Zhongshan, Songshan. The main tourist spots like Taipei 101, Longshan Temple, Chiang Kai-shek Memorial Hall, and the National Palace Museum all have excellent coverage.
Night markets: Shilin, Raohe, Ningxia, Tonghua -- all well covered. You'll want data running to translate menu items, look up what that mysterious skewered thing is, and send photos of your stinky tofu adventures back home.
Taipei MRT: Here's something brilliant about Taiwan -- you get cell signal inside the MRT stations AND on the trains. Most subway systems worldwide lose signal underground. Taipei's doesn't. You can stream music, check your next stop, and message friends while riding the metro. This alone makes an eSIM worth it.
Yangmingshan National Park: Just north of Taipei, this volcanic park has decent coverage on the main trails and visitor centres. Signal gets spotty on the more remote hiking paths, but the popular hot spring areas around Beitou (technically still Taipei) have full coverage.
Kaohsiung: The Underrated Southern City
Kaohsiung has been transforming itself from an industrial port into a genuinely cool city. The Pier-2 Art District, Lotus Pond, Liuhe Night Market, and Cijin Island all have strong signal. The city's light rail and MRT system works well with data for real-time transit apps.
Fo Guang Shan, the enormous Buddhist monastery just outside the city, has coverage in the main complex. It's one of those places where having data to read about what you're seeing makes the visit ten times more interesting.
The Kaohsiung Music Center by the harbour is surrounded by cafes and restaurants where you can sit with waterfront views and fast data. It's a good life down south.
Sun Moon Lake: Mountain Views With Signal
Sun Moon Lake is Taiwan's most famous scenic area, sitting at 748 metres in the central mountains. Coverage around the lake is good -- Shuishe Village (the main tourist hub), Ita Thao (the small indigenous village across the lake), and the visitor centre all have reliable 4G.
The cycling path around the lake -- consistently rated one of the most beautiful bike rides in the world -- has signal for most of the route. A few sections through dense forest dip briefly, but it bounces back quickly.
The Wenwu Temple and Ci En Pagoda viewpoints have good signal. You'll be able to share those sunrise shots over the misty lake without waiting for Wi-Fi.
Taroko Gorge: Dramatic Scenery, Variable Signal
Taroko National Park is Taiwan's crown jewel -- a massive marble canyon carved by the Liwu River. The gorge road has signal at the main stops: Shakadang Trail entrance, Swallow Grotto, Eternal Spring Shrine, and Tianxiang village at the end of the road.
Between these stops, inside the tunnels and deep canyon sections, signal drops in and out. The popular Shakadang and Baiyang trails have inconsistent coverage. Download your trail maps before heading in.
Hualien city, the gateway to Taroko, has full coverage. Most people base themselves here and do day trips into the gorge.
Jiufen and the Northeast Coast
Jiufen -- that hillside town everyone recognizes from Spirited Away comparisons -- has good 4G coverage. The narrow streets of Jiufen Old Street get packed, but your data stays solid. It's essential for navigating the maze of alleys and finding the best taro ball shops.
The northeast coast from Jiufen down to Yilan has decent coverage along the main road. Shifen (where you release sky lanterns) and the Pingxi area have signal in the towns. The coast at Bitou Cape and Nanya Rock has coverage too.
High Speed Rail vs eSIM
Taiwan's HSR runs from Taipei to Kaohsiung in about 90 minutes. The train has free Wi-Fi, but it's shared among hundreds of passengers and usually slow. Your eSIM data will be faster and more reliable for the journey. Signal holds up well for most of the route, with brief drops in some tunnel sections in the mountains near Miaoli.
The regular TRA trains that run the scenic east coast route (Hualien to Taitung) have spottier coverage, especially through the East Rift Valley. Beautiful ride though.
How Much Data Do You Need for Taiwan?
- Weekend in Taipei: 2-3 GB
- One week Taipei + day trips: 3-5 GB
- Two weeks full island: 5-8 GB
- Heavy user (streaming, video calls): 10 GB or unlimited
Taiwan has free public Wi-Fi (iTaiwan) at MRT stations, tourist spots, and convenience stores, but it requires registration and isn't always reliable. 7-Eleven and FamilyMart (they're literally everywhere) have free Wi-Fi you can use in a pinch, but nothing beats having your own data.
Setting Up Your Taiwan eSIM
- Check your phone supports eSIM (most iPhones from XR onwards, Samsung Galaxy S20+, Google Pixel 3+)
- Pick a Taiwan data plan at getesimonline.com
- Install the eSIM profile before you leave home
- Download offline maps for Taroko Gorge and mountain areas
- Land at Taoyuan or Songshan airport, switch on data, and go
Taiwan is one of those places that surprises everyone who visits. The food alone -- beef noodle soup, xiao long bao, bubble tea from the actual source -- is worth the flight. The people are incredibly friendly, the transit system is world-class, and the mix of city energy and mountain wilderness is hard to beat. Get your eSIM sorted, and you'll spend your time exploring instead of hunting for Wi-Fi.