Japan eSIM · Unlimited Data · 4 Days
You get 3GB per day at full 5G speed, then keep browsing unlimited at a reduced speed (256kbps). The high-speed allowance resets every 24 hours — you're never cut off.
JapanNTT Docomo, Inc · KDDI · Softbank · DOCOMO5G- An eSIM QR code by email, instantly after payment.
- Manual activation details (SM-DP+ & code) as a backup.
- Needs an eSIM-capable, carrier-unlocked phone (iPhone XS+, modern Android).
- eSim will be activated when first byte of data is consumed. Choose from Unlimited, Plus, or Premium plans with daily high-speed data (1GB, 2–3GB, or 5GB) and unlimited data at reduced speeds afterward. Data limits reset every 24 hours from first use.
- Data-only (no number) — use WhatsApp / iMessage for calls.
- Keep your home SIM in for calls/SMS; the eSIM handles data.
Buy Japan eSIM · Unlimited Data · 4 Days
Japan eSIM · Unlimited Data · 4 Days for esim is a digital product key delivered instantly by email. Redeem it on the relevant platform to add the product to your library. Region: Japan — confirm it matches your account before purchase.
How to activate your Japan eSIM · Unlimited Data · 4 Days eSIM
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1 · Buy & receive your QR code
Complete checkout — your eSIM QR code arrives by email in under a minute and is always available under Orders in your Gameplug account. Tip: install it BEFORE you travel (over Wi-Fi); it won't use any data until you switch it on.
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2 · Add the eSIM (iPhone)
Settings → Cellular (or Mobile Data) → "Add eSIM" → "Use QR Code" → scan the QR from your email. If you're scanning on the same phone, tap "Enter Details Manually" and paste the SM-DP+ address and activation code from the email.
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2 · Add the eSIM (Android)
Settings → Network & Internet → SIMs (or Mobile network) → "Add eSIM" / "Download a SIM instead?" → scan the QR. Wording varies by brand (Samsung: Connections → SIM manager → Add eSIM).
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3 · Label & set your data line
Name the plan something like "Travel". Keep your home SIM for calls/texts, and set this eSIM as your Mobile Data line so it carries the internet.
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4 · Turn ON Data Roaming for the eSIM
For the travel eSIM line only, enable "Data Roaming" — this is normal and required for a foreign network; you will NOT be charged your home roaming rates because the data comes from this plan.
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5 · Activate on arrival
When you reach your destination (or first use data), the eSIM connects to a local network automatically. That first connection starts your validity period — so activate when your trip begins, not before.
Your phone must be carrier-unlocked and eSIM-capable (iPhone XS or newer; Pixel 3+, Galaxy S20+, and most modern Androids). Networks are auto-configured (APN) — no manual setup needed. Not getting online? Toggle Airplane mode, make sure the eSIM line + its Data Roaming are ON, and that it's selected for Mobile Data. Keep the QR — you may need it to reinstall.
Code not working? Contact support — confirmed-invalid codes are replaced or refunded.
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