How to Use an eSIM in Japan with PlanJapan: Full 2026 Guide

✅ Why choose a PlanJapan eSIM for your trip to Japan?

The PlanJapan eSIM is the simplest way to stay connected in Japan. In a few clicks you receive a QR code by email and activate your data connection the moment you land.

Why PlanJapan?

• ✅ 100% online activation, instant.

• ✅ Stable connection on Japan's best networks (SoftBank or NTT Docomo).

• ✅ Three plans adapted to every traveller:
  🔹 10 GB – for short stays
  🔹 20 GB – for comfortable browsing over 1 to 2 weeks
  🔹 50 GB – for long-stay travellers or heavy users

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📱 Is my phone compatible with the PlanJapan eSIM?

PlanJapan works on every recent smartphone that supports eSIM.

📌 Compatible models:

• iPhone XR and newer

• Samsung Galaxy S20 / S21 / S22 / S23 / S24 / S25

• Google Pixel 3 and later

• Huawei P40, Mate 40 Pro

• Other recent Android models

To check: Settings > Cellular > Add Cellular Plan.

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🧳 When and how to buy a PlanJapan eSIM?

You can buy your eSIM from home before departure or once you arrive in Japan, on the PlanJapan website.

🛒 Purchase steps:

1. Pick your plan: 10 GB, 20 GB, or 50 GB.

2. Complete your payment online.

3. Receive your QR code by email immediately.

4. Install and activate the eSIM in under 2 minutes.

💡 Pro tip: install it before your flight and activate it on arrival.

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🔧 How to activate your PlanJapan eSIM?

1. Connect to Wi-Fi (airport, hotel, home).

2. Scan the QR code received by email.

3. Accept the new cellular plan on your device.

4. Activate the PlanJapan mobile line.

5. Enjoy Internet in Japan immediately.

🕓 The validity counter starts from activation. Only activate once you land.

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🌐 What coverage does PlanJapan offer?

PlanJapan eSIMs run on Japan's top mobile networks (SoftBank or NTT Docomo). Expect:

• Excellent city coverage: Tokyo, Osaka, Kyoto, Hiroshima.

• Strong signal in the countryside, mountains and rural areas.

• Stable connection on trains, including the Shinkansen.

🚄 Perfect for Google Maps, social media, YouTube, email and video calls.

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💡 Our tips to make the most of your PlanJapan eSIM

• 🔋 Disable automatic updates to save data.

• 📶 Use Wi-Fi whenever possible.

• 🌍 Download offline maps before visiting sites.

• 📈 Monitor your usage in the device settings.

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❓ FAQ — Frequently asked questions

Can I make phone calls with my PlanJapan eSIM?
Yes, via apps like WhatsApp, FaceTime or Messenger. PlanJapan plans are data-only.

Can I keep my home SIM active?
Absolutely. PlanJapan works as a second line. Keep your home SIM to receive bank SMS codes and calls.

What if I switch phones?
The eSIM is tied to one device. To change devices, a new eSIM is required.

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🎌 Conclusion: travel Japan stress-free with PlanJapan

With PlanJapan, you stay connected across Japan without worrying about Wi-Fi, roaming fees or physical SIM cards.

🛒 Our available eSIM plans:

• 🔹 10 GB – ideal for short stays or light users

• 🔹 20 GB – perfect for 1 to 2 weeks of standard travel

• 🔹 50 GB – for heavy users or long stays

➡️ Order your PlanJapan eSIM today and travel with peace of mind.