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Damda Note · Japan · Japan · Travel planning

Choosing internet access for Japan: eSIM, SIM card, and pocket Wi-Fi compatibility and setup order

A Japan eSIM is ideal for travelers who want to download the profile before departure and connect immediately upon arrival. Choose a SIM card if eSIM is unsupported or you prefer a physical SIM, or Japan pocket Wi-Fi if you want to rent a separate device and connect via Wi-Fi. Official Japan SIM options include a 260 yen plan and a 3GB, 3-day plan for 600 yen.

Inside the international terminal at Tokyo Haneda Airport
Photo: Momiji.Takinogawa · CC BY-SA 4.0 · Wikimedia Commons (resized) · License
Key takeaways
  • First, check whether your device supports eSIM.
  • A SIM card requires an unlocked phone.
  • Pocket Wi-Fi can be picked up at the airport or delivered to your hotel.
  • Japan SIM also offers a 260 yen plan.

Which option should I choose?

Start by comparing device compatibility and pickup options to make choosing easier.

How to Choose a Connectivity Option (Based on Official Guidance)
ItemBest suited forWhat to check first
eSIMIf you want to download the profile before departure and connect immediately after arriving in JapanPhone and Carrier eSIM Support
SIM cardIf you want to buy or rent a SIM card at an airport or electronics storeWhether Your Phone Is Unlocked
Pocket Wi-FiIf you want to rent a separate personal hotspot and connect via Wi-FiAirport pickup or hotel delivery
Free Wi-FiIf you want to connect at an airport terminal or participating facilityAvailability at the accommodation and signal quality

JNTO recommends renting Wi-Fi if you need a stable connection in outlying areas. Major international airport terminals offer free Wi-Fi, but connection methods vary by airport.

Will eSIM work on my phone?

Don’t check only the model name—confirm that both your phone and carrier support eSIM.

  • The basic requirement is an iPhone XS, iPhone XS Max, iPhone XR, or later model.
  • Pixel 4 and later models support eSIM.
  • eSIM will not work on a Pixel 3a purchased through Verizon or in Japan.
  • eSIM support on the Pixel 3 varies by carrier and country of purchase.
  • NTT DOCOMO does not guarantee operation on devices purchased outside its stores.

Separate requirements apply to eSIM-compatible iPhone models in mainland China. If your device was purchased in another country, check the official guidance from Apple and your carrier again.

What should you check when choosing a SIM card?

Your phone must be unlocked to use a Japan SIM card.

Exterior of the Bic Camera store in Yurakucho, Tokyo
Bic Camera, where you can buy travel SIM cardsPhoto: そらみみ (Soramimi) · CC BY-SA 4.0 · Wikimedia Commons (resized) · License
  • JNTO states that various data plans are available for purchase at major airports based on your needs.
  • You can also buy SIM cards at electronics stores such as Bic Camera and Yodobashi Camera.
  • The approximate listed price is 3,000 yen for 1GB over 30 days.
  • Pixel phones can use nano SIM cards. However, US versions of Pixel 10, 10 Pro, and 10 Pro XL cannot use physical SIM cards, and some older SIM cards are not supported on Pixel 8 and later devices.
  • Plan details may vary, so check the official information before purchasing.

How much does a Japan eSIM cost?

povo Japan SIM offers both fixed-data and unlimited plans.

povo Japan SIM Pricing (Based on Official Information)
ItemValidity periodPrice
3GB3 days600 yen
5GB5 days900 yen
10GB7 days1,430 yen
20GB30 days2,700 yen
Unlimited data + 0.5GB5 days + 60 days2,510 yen
Unlimited data + 0.5GB7 days + 60 days3,390 yen

Data-based plans are activated immediately after purchase. Unlimited plans are provided via promo code and can be started whenever needed before the stated expiration date.

Dealdamda Calculator

Which is better: buying 3GB and 5GB separately, or getting 10GB?

  • 3GB · 3 days¥600
  • 5GB · 5 days¥900
  • Total when purchased separately¥1,500
  • 10GB · 7 days¥1,430

With this itinerary, You save ¥70.

Calculation basis: A simple comparison of official prices for povo Japan SIM data plans.

Offers you can use for this trip

KKdayPromotion
Up to 50%

Up to 50% off KKday SIMs and Wi-Fi worldwide

Applies to eligible SIM and Wi-Fi products worldwide.

Up to 50% off KKday SIMs and Wi-Fi worldwide

KKdayUp to 50%
Terms of use
View information source

Original information from KKday (kkday.com)

This offer has no stated end date and may be discontinued by the seller without notice.

Please confirm eligible products and payment conditions with the seller before purchase.

View the guide before use

View all offers from this brand · View all offers from this brand

How should I set it up before departure?

Prepare by checking compatibility, purchasing a plan, and installing the profile in that order.

  1. Check whether your phone model and carrier support eSIM.
  2. Have a network connection ready, such as Wi-Fi or a hotspot, to download the profile.
  3. Select Sign Up / Sign In on the Japan SIM page.
  4. Select Get Started or Log In.
  5. Choose and purchase a data add-on.
  6. Follow the instructions provided to download the eSIM profile to your phone.

If you accidentally delete the eSIM profile, you may need to have it reissued. Keep the purchase instructions and QR code until setup is complete.

How do I install an eSIM on iPhone using a QR code?

Scan the QR code provided by your carrier with your camera and add the mobile plan.

Front and back of the Apple iPhone XS
The iPhone XS, Apple's baseline model for eSIM supportPhoto: Cullen Steber · CC BY-SA 4.0 · Wikimedia Commons (resized) · License
  1. Use your camera app to scan the QR code provided by your carrier.
  2. Tap the Mobile Plan Detected notification.
  3. Tap Continue at the bottom of the screen.
  4. Tap Add Mobile Plan.
  5. If prompted for a verification code, enter the number provided by your carrier.

On iOS 17.4 or later, you can also press and hold a QR code in the default Mail app or browser, then select Add eSIM. Installation via a link, carrier app, or manual entry is also supported.

Where can I pick up my Pocket Wi-Fi?

Pick it up at a rental counter in a major airport, or reserve in advance for delivery to your hotel.

Inside a passenger terminal at Tokyo Narita Airport
Narita Airport, where you can find Pocket Wi-Fi rental countersPhoto: Nanashinodensyaku · CC BY-SA 4.0 · Wikimedia Commons (resized) · License
  • Compare plans from multiple providers and choose the one that fits your itinerary.
  • Check whether Wi-Fi is provided when booking your accommodation.
  • Free public Wi-Fi is convenient, but the signal may be unstable or slow.
  • Accommodations in mountainous or rural areas may not offer Wi-Fi.
  • Check the provider’s official information for rental fees and pickup/return conditions.

Frequently Asked Questions

Can I install a Japan eSIM before departure?

You can apply for Japan SIM from overseas and download the eSIM profile to your device in advance. This lets you get ready to connect immediately upon arrival in Japan.

Can I use a Japanese SIM card in a locked phone?

According to the official JNTO guide, your phone must be unlocked to use a SIM card.

Which iPhone models support eSIM?

Apple lists iPhone XS, iPhone XS Max, iPhone XR, and later models as the basic requirement. Also check whether your carrier supports eSIM.

Do all Pixel phones support eSIM?

Pixel 4 and later models support eSIM. Earlier models may have exceptions depending on the carrier or country of purchase.

Can I pick up Pocket Wi-Fi at an airport in Japan?

JNTO says rental counters are available at major airports. You can also book online and choose hotel delivery.

Source

  • Official JNTO Guide — Wi-Fi & Connectivity — Verified on November 8, 2026: We checked airport pickup and hotel delivery for Pocket Wi-Fi, SIM unlock requirements, and information on free Wi-Fi and a 1GB·30-day plan costing about 3,000 yen.
  • Official povo (KDDI) Japan SIM Pricing and Setup — Verified on November 8, 2026: We checked the 260-yen bundle, 3GB · 3 days for 600 yen, 5GB · 5 days for 900 yen, 10GB · 7 days for 1,430 yen, 20GB · 30 days for 2,700 yen, a plan combining unlimited data with 0.5GB · 60 days of data, and the application steps.
  • Official NTT DOCOMO eSIM Guide — Verified on November 8, 2026: We verified compatible eSIM devices, network requirements, profile download instructions, and precautions about reissuing a deleted profile.
  • Official Apple Guide — Setting Up eSIM on iPhone — Verified on November 8, 2026: We verified compatibility requirements for iPhone XS, iPhone XS Max, iPhone XR, and later models, the QR code installation steps, and the installation method for iOS 17.4 and later.
  • Official Google Guide — Pixel SIM & eSIM — Verified on November 8, 2026: We verified eSIM support for Pixel 4 and later, the exceptions for Pixel 3a and Pixel 3, the physical SIM restrictions on US versions of Pixel 10, 10 Pro, and 10 Pro XL, and the precautions for older SIM cards on Pixel 8 and later.

This article was written after cross-checking the sources above. Prices and schedules may change, so check the official information before booking. Next review scheduled: December 23, 2026. View verification criteria

Revision history

  • November 8, 2026 — First published

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