Taiwan's mobile networks in 2026

Taiwan has three major carriers — Chunghwa Telecom, Taiwan Mobile, and Far EasTone (FET). Together they deliver some of Asia's fastest mobile speeds, consistently ranking in the top 10 globally on Ookla's Speedtest Global Index.

Chunghwa Telecom leads the 5G coverage footprint and is the strongest all-round network for travelers. It owns the most spectrum, has the densest tower grid, and blankets the entire west-coast corridor plus the high-speed rail line from Taipei to Kaohsiung. Taiwan Mobile is a solid alternative with strong urban coverage and competitive pricing. Far EasTone merged with Asia Pacific Telecom, expanding its 5G footprint across cities and tourist zones.

Most travel eSIMs for Taiwan route through Chunghwa or Taiwan Mobile, so regardless of which brand you buy from, the underlying network performance is excellent. For the full breakdown of which cities get 5G and where signal drops to 4G, see our Taiwan 5G coverage guide.

Coverage by city and region

For a deeper look at how Airalo, Holafly, Nomad, and Saily compare on pricing and plan structure, see our Taiwan eSIM provider comparison.

Taiwan eSIM 2026: who wins on what

Five brands, the same five questions, in every country guide we publish. Coverage figures are each brand’s own published network list; price and plan figures come from esimDB, checked 20 August 2026. Taiwan is close on price — we lose it by two cents a gigabyte, and the table says so.

Networks are each brand's own published figure. Prices, plan counts, and data sizes via esimDB, checked 20 August 2026. Holafly publishes neither a per-country carrier nor plans on esimDB, so it cannot be scored on price or range here. Plan range is counted in distinct data sizes, not plan count.

Which one to pick

• Heading to Hualien, Taroko or the east coast? YonoSIM publishes both Chunghwa and Taiwan Mobile; Airalo publishes Taiwan Mobile only. Chunghwa is the one with the denser rural build.
• Cheapest data is Nomad at $0.78/GB against our $0.80. Two cents a gigabyte — if that is the whole decision, buy theirs.
• Want an unusual data size? Saily has the most granular ladder here (9 distinct sizes to our 8).
• Want the data back if you don’t use it? YonoSIM refunds unused data automatically after 30 days; the others require you to ask. On a 4-day Taipei trip that is usually worth more than two cents a gigabyte.

Plan size by trip length

eSIM vs roaming vs local SIM vs pocket Wi-Fi

Travelers to Taiwan have four connectivity options. Here's how they compare on cost, convenience, and coverage:

For a full cost breakdown with carrier-specific roaming rates, see our Taiwan eSIM vs roaming comparison. If you're specifically weighing the airport SIM counter versus pre-installing an eSIM, our Taiwan eSIM vs local SIM guide covers that in detail.

Speed: what to expect

Taiwan's 5G networks deliver median download speeds of 300–500 Mbps in Taipei and Kaohsiung city centers on Chunghwa Telecom, with 4G/LTE averaging 50–100 Mbps elsewhere. The high-speed rail corridor maintains 4G at around 30–80 Mbps, which easily handles video calls and streaming. Compared to carrier roaming (which often throttles to 128 kbps after a daily cap), an eSIM on the local network delivers dramatically better real-world performance.

How to activate your Taiwan eSIM

Activation takes about five minutes on Wi-Fi before your trip:

1. Buy your plan — choose from our Taiwan eSIM plans
2. Scan the QR code — on iPhone: Settings → Cellular → Add eSIM. On Android: Settings → Network → SIMs → Add eSIM
3. Label it “Taiwan Data” — set it as your data line while keeping your home SIM for calls/SMS
4. Enable data roaming on the new eSIM profile (required for travel eSIMs)
5. Land at Taoyuan — your phone connects to Chunghwa 5G automatically

No passport registration, no counter queue, no SIM tray tool. Your home number stays active for 2FA texts and calls via Wi-Fi calling.

Picking the right Taiwan eSIM

Taipei city break (3–5 days): a 1–3 GB plan covers maps, LINE, the metro app, and social. Perfect for Taipei 101, Jiufen, Shilin Night Market.

North-south rail trip (7 days): a 5–10 GB Chunghwa- or Taiwan Mobile-backed plan at US$2.99–12. Stream on the THSR, navigate Tainan temples, post from Kaohsiung.

East coast + mountains (7–14 days): 10 GB or unlimited if you're hitting Taroko Gorge, Sun Moon Lake, and Alishan. Download offline maps for mountain days.

Long stay or workation (10+ days): an unlimited daily-throttle plan at US$20–28 so hotspot tethering stays usable.

Flying in from Korea? See our Busan → Taiwan flight guide for the latest Starlux routes and how to have your eSIM ready for Taoyuan.

Zero-risk buying: 30-day automatic refund

First time buying a travel eSIM? The number-one worry we hear is: “What if it doesn't work with my phone?” or “What if my trip gets cancelled?”

YonoSIM is the only provider with a fully automatic 30-day refund: if your eSIM goes unused for 30 days after purchase — for any reason — you get your money back automatically. No support ticket, no chat bot, no “please explain why.” The system has already processed hundreds of refunds hands-free.

Common scenarios where the auto-refund kicks in:

• Phone compatibility issue — your device doesn't support eSIM or the profile won't install? Refunded automatically.
• Trip cancelled or rescheduled — plans changed, you never activated the eSIM? Refunded automatically.
• Bought the wrong destination — accidentally picked Taiwan instead of Thailand? Refunded automatically.
• Changed your mind — decided to use a pocket Wi-Fi or your friend's hotspot instead? Refunded automatically.

No other eSIM provider — not Airalo, not Holafly, not Nomad, not Saily — offers this. With them, you file a support request and hope for the best. With YonoSIM, unused means refunded, period. It removes all the anxiety from buying your first travel eSIM, especially when you're not 100% sure your phone is compatible or your itinerary is locked in.

Unlimited plans: are they worth it?

Unlimited Taiwan eSIM plans (US$20–28/week) make sense if you'll stream daily, tether a laptop, or travel with a group sharing one hotspot. Most unlimited plans have a daily fair-use cap (often 1–2 GB at full speed, then throttled to 1–3 Mbps), which is fine for maps and messaging but noticeable for HD video.

For most tourists, 5–10 GB at full speed beats “unlimited” with throttling. Taiwan also has excellent free Wi-Fi at MRT stations, 7-Eleven, FamilyMart, and cafes, so you rarely burn through data unless streaming outdoors.

Taiwan eSIM tips for your trip

• Install before you fly — do it on home Wi-Fi so you're not fumbling at Taoyuan arrivals
• Enable Wi-Fi calling on your home SIM so you can receive calls/texts over data without roaming charges
• Download offline maps for Taroko Gorge, Alishan, and east-coast rail trips where signal thins
• Use LINE — Taiwan's dominant messaging app; restaurants, tourist info, and transport all use it
• EasyCard top-up apps work on data — add funds to your transit card from your phone
• Set data roaming ON for the eSIM profile — this is required for travel eSIMs to connect

FAQ

More Taiwan eSIM guides

• Taiwan 5G coverage guide — city-by-city signal strength, HSR, mountains
• Taiwan eSIM vs roaming — full cost comparison vs US/UK/AU carriers
• Taiwan eSIM vs local SIM — skip the Taoyuan airport counter
• Airalo vs Holafly vs Nomad vs Saily for Taiwan — detailed provider comparison
• Busan → Taiwan direct flights — Starlux routes and eSIM setup
• Keep your number abroad — dual-SIM setup so your home number stays active
• Keep 2FA codes working abroad — bank logins, authenticator apps, SMS verification
• Wi-Fi calling setup guide — receive calls and texts on your home number over eSIM data

Bottom line

For most Taiwan tourists, a 5–10 GB Chunghwa- or Taiwan Mobile-backed travel eSIM is the call — or unlimited if you stream on the high-speed rail. Pre-install at home, land at Taoyuan with 5G on, no airport SIM queue, no roaming-bill surprise. Every major provider (Airalo, Holafly, Nomad, Saily, YonoSIM) uses the same networks, so pick on price per GB and refund policy rather than brand recognition.

Originally published on www.yonosim.com/en/blog/best-esim-taiwan-2026 · YonoSIM — You Only Need One SIM