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The pick · iPhone 12 · Japan

Best eSIM for iPhone 12 in Japan.

We picked one plan, not five. The iPhone 12 runs eSIM cleanly — what you actually need is the right amount of data for the way you travel. Here's our pick and why.

Our pick

14 days · 15 GB

For a working week with a weekend either side.

$35
for 14 days
Continue with this plan
Why this one

The iPhone 12 doesn't need a 1 GB plan, and most people don't burn through unlimited.

The iPhone 12 natively supports eSIM with dual-SIM standby. Installation is a 60-second QR scan — see the install guide for the exact tap sequence.

In Japan, our wholesale routes ride NTT Docomo, SoftBank, KDDI au — 180 – 320 Mbps urban · 28 ms RTT. The 14-day window matches the median trip length we see for this destination, and 15 GB is what most travelers actually use — anything more is paid breathing room you don't draw on.

If your trip is shorter or longer, the Japan page has the alternates.

iPhone 12 in Japan

Before you buy.

For most iPhone 12 travelers in Japan we recommend the 14-day plan with 15 GB. It matches the median trip length we see for Japan, and iPhone 12 runs eSIM cleanly so the only real decision is how much data you need.
We picked 15 GB rather than unlimited because most iPhone 12 travelers in Japan never reach it — unlimited would be paid breathing room you do not draw on. If you stream or tether heavily, the unlimited option is one tap away on the country page.
Maps, messaging, and email on iPhone 12 sip data; video calls and streaming are what add up. Our pick — 15 GB over 14 days — covers a normal working trip to Japan with margin. Heavy streamers should size up.
Our iPhone 12 pick for Japan is $35 for 14 days — one up-front charge, no subscription, no surprise roaming bill. Stripe adds local tax based on your billing country at checkout.
In Japan, iPhone 12 routes on NTT Docomo, SoftBank, and KDDI au — 180 – 320 Mbps urban · 28 ms RTT. It hands off to whichever has the strongest signal where you are; you never pick the carrier manually.
After checkout the QR arrives by email; on iPhone 12 it is Settings → Cellular → Add eSIM → scan. Under two minutes. The full step-by-step is on the iPhone 12 install guide.
The 14-day plan is our default, not the only option. The Japan page has shorter and longer windows, and you can top up the same iPhone 12 eSIM mid-trip without reinstalling if you run low.
Full refund if the Japan eSIM fails to activate on iPhone 12; half refund if it activates but underperforms on NTT Docomo, SoftBank, and KDDI au. One click from your dashboard — no email thread.
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