OHAYU eSIM
Chunghwa Telecom, Far EasTone & Taiwan Mobile 5G · nationwide

eSIM for Taipei

Install before you fly, switch on at Taoyuan. Covers all of Taiwan.

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Product info

Taipei eSIM plans

You can install your eSIM before the trip and activate it when you arrive in Taiwan. Validity starts after eSIM activation.

Plan details

Operators
Phone number / SMSData-only · no local number or SMS. VoIP calls work fine with your home number.
ActivationInstall now, activate anytime within 30 days. Validity starts on the first connection to a Taiwan network.
Reinstallation5 reinstalls on the same device
Speed
Hotspot / tetheringYes · share your connection with other devices
Top-upAdd data anytime in-app · same eSIM

How much mobile data you need

What's the best eSIM for Taipei?

  • A few days – 3 GB

    Maps, night markets, the MRT.

  • The island for two weeks – 10 GB

    Taroko, Tainan, Kaohsiung.

  • Taiwan widely – 20 GB

    West coast plus the east.

  • Working from Taipei – Unlimited

    Tethering across a longer stay.

Coverage and network

Coverage city, mountains and the east coast

Taiwan mobile networks

Taiwan ranks 44th globally at about 112 Mbps, with Taipei around 134. Coverage across the western plain where most people live is comprehensive. The central mountains and the east coast are steep, sparsely populated and much thinner.

Chunghwa TelecomFar EasToneTaiwan Mobile

Speedtest Global Index · Mobile · Taipei · June 2026

Download

134.05 Mbps

Upload

21.33 Mbps

Latency

16 ms

Global rank

#70 of 98

Taipei, specifically

  • Xinyi, Da'an, Zhongshan: Strong 5G. Taipei 101 and the surrounding district are thoroughly covered.
  • The MRT: Covered across the network including the deep stations. Taiwan equips its metro thoroughly, and the airport line holds signal the whole way in.
  • Yangmingshan and the hills: The national park above the city is covered on the main roads and around the visitor centres; the trails and the volcanic fumarole areas are patchier.
  • Typhoons: Taiwan takes direct hits most years between July and October. Networks generally survive, but power cuts take individual sites down and the mountain roads close for landslides - sometimes for weeks.
  • The east coast and Taroko: The gorge and the coast road are covered in places and not in others, and the terrain is genuinely severe. Taroko has been repeatedly closed by earthquakes and landslides, so check access before you travel rather than assuming.

All of Taiwan

The plan covers the whole island - Taipei, Tainan, Kaohsiung, Hualien - and the outlying islands where there is coverage to have.

TaipeiTaichungTainanKaohsiungHualienJiufen+ all of Taiwan

How to install eSIM

Connected in 3 steps

  1. 01

    Buy before you fly

    Choose your data plan before your trip.

    ohayu app buy before you fly for Taipei eSIM
  2. 02

    Download & install

    Log in to your account, tap your eSIM, and follow the on-screen instructions.

    ohayu app download & install for Taipei eSIM
  3. 03

    Land & activate

    Activate when you arrive in Taiwan. Turn on roaming for the eSIM and it connects to a local network.

    ohayu app land & activate for Taipei eSIM

Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.

Arriving in Taipei

Taoyuan airport

Taoyuan has free terminal Wi-Fi and an MRT line into the city taking about 35 minutes. Taiwan also has an extensive free public Wi-Fi network, iTaiwan, though registering for it is easier with a local number than without.

Taiwan Taoyuan International (TPE)
Free terminal Wi-Fi - MRT into Taipei in about 35 minutes
Taipei Songshan (TSA)
The city airport for domestic and short regional flights

Side by side

Taipei eSIM Comparison

OhayuHolaflySailyAiralo
Unlimited optionYesYesCapped dailyNo
Hotspot / tetheringAll plansDaily capYesYes
Support24/7 web & app24/7 web & app24/7 app only24/7 web & app
Device compatibility checkAutoManualManualManual
eSIM re-installationUp to 5xUp to 3xLimitedNot allowed

Indicative comparison based on publicly listed Taiwan plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.

Frequently asked questions

Coverage

Where to buy a SIM card in Taipei?

The three operators all have counters in Taoyuan's arrivals halls, which is where most visitors buy - tourist data packs are cheap and the process is quick with a passport. Taiwan requires identification for a local line. City shops are plentiful too.

Can I use the free public Wi-Fi instead?

Partly. Taiwan's iTaiwan network covers a lot of public buildings and transport, and it is genuinely useful - but registering typically expects a local mobile number, which is the same wall you hit in Korea. Having your own data avoids the loop.

What happens during a typhoon?

The network usually holds; the transport does not. Between July and October Taiwan takes direct typhoon hits, high-speed rail and flights stop, and mountain roads close for landslides that can take weeks to clear. Being connected is how you find out what is running.

Troubleshooting

eSIM not working in Taipei?

In the mountains or along the east coast, gaps reflect the terrain. After a typhoon a local site may be without power. In the city, check Ohayu is your data line with roaming on, then toggle Airplane mode. Chat and support@ohayu.com are open 24/7.

From $8.49

Land in Taipei already connected

Install now - iTaiwan Wi-Fi wants a local number.

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