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20% OFF

[3-4 DAYS] Japan eSIM 5G Unlimited + 3GB Shareable Data

¥2,200 – ¥2,750

Enjoy 5G unlimited data with 3GB hotspot, covering 99.9% of Japan—even in subways, on the Shinkansen, and atop Mt. Fuji. The best eSIM for 3-4 days in Japan!

  1. Basic Information
  • Plan: Unlimited Data
  • Days of Use: 3-4 Days
  • Speed: 5G/4G
  • Networks: au, Japan’s most awarded network in 2025
  • Coverage: 99.9% nationwide coverage in Japan with high-speed internet
  • Shareable Data (Hotspot): 3GB
  • Delivery: Immediate via email, after purchase
  1. Setup & Activation
  1. Usage Limitations
  • Phone Number: Not included (data-only plan)
  • Calls: Only through apps (VOIP services such as Facebook Messenger, WhatsApp, Skype, Zoom, etc.)
  1. After Purchase Support
  • Customer Support: Available 24/7 via email for troubleshooting and assistance

Before Purchase

Certain conditions must be met to use eSIM.

Please check the following details in advance.

eSIM-Compatible

Devices

Please ensure that your device supports eSIM in advance.

SIM Lock Removal

eSIM is available for SIM-free devices. If your device is locked, please unlock it first. Check your carrier’s website for unlocking instructions.

Day Calculation

You can purchase and install the eSIM now, but it will only activate upon your arrival in Japan. The plan’s duration is based on Japanese Standard Time (JST). A “day” is defined as a calendar day from 00:00 to 23:59 JST. For example, if you activate the eSIM at 23:00 JST, the first day will end at 23:59 JST, regardless of the actual usage time. Please note that late activations will result in shorter usage time for the first day.

[Best eSIM Japan] Day Calculation Based on Japanese Standard Time (JST)

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