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.
14 days · 15 GB
For a working week with a weekend either side.
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.