eSIM Nhật Bản gói tổng dung lượng｜4G／5G tốc độ cao｜IP Nhật Bản｜3GB–100GB

The easy part: No physical SIM swap. One high-speed pack covers these days, so you are not starting over every morning.

NTT and IIJ, simply: NTT Docomo is one of Japan’s big carriers, and this card uses its own high-speed 4G/5G. IIJ Docomo is a different company that borrows Docomo’s towers. When it’s crowded, the borrowed line is more likely to slow down. Docomo’s own line is usually smoother.

Still online after the pack: After 3GB–100GB of high-speed data, about 200 kbps continues until the days end. Texts usually still go through. HD video stutters. This pack does not reset every day.

Native Japan IP: Traffic exits in Japan. Maps, social apps, and Japanese apps feel smoother than a Singapore-IP roaming card.

One less setup step: On iPhone, scanning the QR usually fills this in. On Android, type a.apn02.net. With IIJ, you type vmobile.jp yourself on both iPhone and Android.

Who should choose what: Pick this when you already know the trip total and want Docomo’s own line. For a fresh allowance every day, choose NTT DOCOMO daily. For light use and a lower price, choose IIJ Docomo total. If you don’t want any setup, choose SoftBank/KDDI daily. If you don’t want to watch your data, choose AU KDDI truly uncapped.

Before you start: Install it in Taiwan first. After you land and connect to NTT Docomo, turn this card’s mobile data on. That’s when the days start counting.