Using an iPhone 12 in Taiwan: eSIM Setup & Internet Guide

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🇹🇼 iPhone 12 works in Taiwan

  • ✓ Fully compatible with Chunghwa Telecom, Taiwan Mobile, FarEasTone
  • ✓ eSIM installs in 2 minutes — no SIM swap needed
  • ✓ Supports 1 active eSIM — keep your home SIM active

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iPhone 12 compatibility in Taiwan

Network band compatibility

iPhone 12 supports LTE bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 46, 48, 66. B19 support covers Japan NTT Docomo. Broad global coverage across all major regions.

SIM configuration

iPhone 12 has a nano-SIM slot plus one eSIM. One active eSIM at a time. Physical nano-SIM required for voice in dual-SIM mode. Sold in all markets with a physical SIM tray.

Active eSIMs

1

Stored profiles

Up to 5

Physical SIM

Yes

Carrier lock risk

None

How to install your Taiwan eSIM on iPhone 12

Complete these steps at home over Wi-Fi before your flight. Takes 2–3 minutes.

  1. 1

    Go to Settings → Cellular → Add eSIM

  2. 2

    Tap "Use QR Code" and scan the QR code from your LTE.app order

  3. 3

    Follow the on-screen prompts to complete eSIM setup

  4. 4

    Label the new plan (e.g., "Travel Data") for easy switching

  5. 5

    Set the new eSIM as your primary data plan when you arrive

  6. 6

    After landing in Taiwan, go to Settings and switch on your LTE.app eSIM line. Your phone connects to Chunghwa Telecom, Taiwan Mobile, FarEasTone automatically.

iPhone tip: If data doesn't work after enabling the eSIM, go to Settings → Cellular → [LTE.app line] → Data Roaming → On. APN is set automatically.

What happens when you land in Taiwan

  1. 1

    Install your eSIM on iPhone 12 before your trip

    Scan the QR code from your LTE.app order at home over Wi-Fi. Takes 2–3 minutes. Your home SIM stays active and untouched throughout.

  2. 2

    Land at Taiwan Taoyuan International Airport

    After your flight, disable Airplane Mode. Open Settings → Cellular and enable your LTE.app eSIM line.

  3. 3

    Connect to Chunghwa Telecom, Taiwan Mobile, FarEasTone

    Your iPhone 12 automatically connects to Taiwan's LTE network. Taiwan has excellent LTE nationwide. Taipei is extremely well covered. The East Coast (Taroko Gorge, Hualien), Alishan mountain area, and Sun Moon Lake all have good coverage. Remote mountain hiking trails above 3,000m may have gaps.

  4. 4

    Maps, messaging, and apps work immediately

    Navigation, translation, ride-hailing, and messaging apps all work the moment you exit the arrivals hall — no queuing, no SIM swap.

Roaming vs eSIM in Taiwan: cost comparison

Roaming your home carrier in Taiwan costs significantly more than a local eSIM.

Taiwan is an expensive roaming destination from US and EU carriers — $10–15/day is typical.

Taiwan stands out globally for its airport SIM convenience. Chunghwa Telecom's vending machines at TPE arrivals are fast, no-registration, and well-priced. An LTE.app Taiwan eSIM is comparable in cost and activates before landing. For eSIM-compatible phones, the eSIM wins on speed. For non-eSIM phones, the airport vending machine is the best option globally.

LTE coverage in Taiwan for iPhone 12 users

Taiwan uses LTE bands 1, 3, 7, 28, and 42. Chunghwa Telecom, Taiwan Mobile, and FarEasTone all provide excellent national LTE and 5G coverage.

Taiwan has excellent LTE nationwide. Taipei is extremely well covered. The East Coast (Taroko Gorge, Hualien), Alishan mountain area, and Sun Moon Lake all have good coverage. Remote mountain hiking trails above 3,000m may have gaps.

Frequently asked questions — iPhone 12 in Taiwan

Is the iPhone 12 compatible with Taiwan's mobile network?

Yes. iPhone 12 supports LTE bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 46, 48, 66. B19 support covers Japan NTT Docomo. Broad global coverage across all major regions. Taiwan uses LTE Taiwan uses LTE bands 1, 3, 7 — all supported by the iPhone 12.

Can I keep my home SIM active while using a Taiwan eSIM on my iPhone 12?

Yes. The iPhone 12 supports nano-SIM + eSIM. Your physical SIM stays active for calls. Set the LTE.app Taiwan eSIM as your data line in Settings → Cellular (iOS) or SIM Manager (Android).

When should I install the Taiwan eSIM on my iPhone 12?

Install it at home over Wi-Fi before your flight. The process takes 2–3 minutes using the QR code from your LTE.app order. Taiwan requires the eSIM to be installed before arrival in some cases — never wait until you land. Taiwan Taoyuan International Airport has free Wi-Fi if you forget, but pre-install is strongly recommended.

How many eSIM profiles can I store on my iPhone 12?

The iPhone 12 can store up to 5 eSIM profiles, with 1 active at once. You can buy and install eSIMs for multiple countries in advance and switch between them without deleting old ones.

Other devices in Taiwan

iPhone 16 in TaiwaniPhone 15 Pro in TaiwaniPhone 15 in TaiwaniPhone 14 in TaiwaniPhone 13 in Taiwan

More Taiwan resources

🇹🇼 Internet in Taiwan guide🇹🇼 Taiwan eSIM plans7 days Taiwan eSIM14 days Taiwan eSIM30 days Taiwan eSIMeSIM at TPEeSIM at TSAiPhone eSIM guideeSIM not working?Taiwan carrier quality

Ready to use an iPhone 12 in Taiwan?

Install your eSIM before your flight. Works the moment you land at Taiwan Taoyuan International Airport.

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Using an iPhone 12 in Taiwan: eSIM Setup & Internet Guide | LTE.app — LTE.app