eSIM for Japan. eSIM for Japan: NTT Docomo and SoftBank coverage, what a local SIM really costs, and how to keep your own number live in Tokyo. No roaming bill.
Japan is served by NTT Docomo, SoftBank, KDDI au. 5G across every major city and along the Shinkansen corridors. LTE holds in the mountains and on most rural lines, and Tokyo subway platforms and tunnels are fully covered.
Japanese carriers tie voice lines to residency. A tourist SIM bought at Narita or in a Bic Camera is almost always data-only, so you get 5G everywhere and still cannot receive a call or an SMS.
This is the country where losing your number hurts most. Hotel confirmations, restaurant reservations, your bank checking an unusual foreign transaction: all of it arrives by SMS to the number you left at home. A Japanese data SIM cannot receive any of it.
US carriers price Japan into the standard day pass, roughly 12 dollars a day on Verizon TravelPass or AT&T International Day Pass. Two weeks in Japan lands near 170 dollars before you have made a single call.
The alternative to both: Ringo is a global eSIM subscription that ports your existing phone number, so calls, SMS and two-factor codes keep working in Japan and 180+ other countries on one flat monthly plan.
Realistically, no. Voice lines from Docomo, SoftBank and au require a residence card, a Japanese address and usually a local bank account. Prepaid tourist products sold at airports and electronics stores are data-only. This is why travelers to Japan gain more than most from keeping their existing number active rather than replacing it.
Yes. Japan covers its rail tunnels and subway platforms, which is unusual. Expect continuous service on the Tokaido Shinkansen between Tokyo and Osaka, with brief drops in the longer mountain tunnels.
Not really. Free Wi-Fi exists in convenience stores, stations and larger cafes, but most networks want an email registration per session and coverage disappears the moment you are between them. Japan is a country where you want your own connection.
Ringo Light Japan data eSIM, on sale now: 10 GB, 30 days €39.99; 20 GB, 30 days €69.99; Unlimited, 3 days €15.99; Unlimited, 7 days €33.99; Unlimited, 30 days €109.99. Works across Japan. 10 or 20 GB of data for 30 days at full speed with no daily cap, one payment. Unlimited data (fair use policy applies) for 3, 7 or 30 days. Installed once, next to your own SIM and number.
Every region and country on sale
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