Guide comparatif · Mis à jour juin 2026
Roaming Japon vs eSIM
Ce guide compare roaming vs eSIM pour Japon. Forfaits opérateurs : Docomo & SoftBank vs travel eSIM and best eSIM Japan.
Outside home bundles
Most home plans treat Japon as a paid roaming zone—not included at home rates.
Daily fees stack
A multi-day Japon trip can exceed one prepaid eSIM bundle.
Background data risk
Roaming on triggers app updates and map downloads on cellular.
Fixed prepaid eSIM
Choose GB and days before you fly—no post-trip invoice surprise.
Pourquoi le roaming coûte cher
Japon is often a premium roaming zone. Daily passes and per-MB fees add up on tourist routes—a prepaid travel eSIM is usually cheaper for 7–14 day trips.
Comparatif des coûts
| Option | Modèle tarifaire | Attention |
|---|---|---|
| Home roaming | Daily pass or per-MB | Expensive over multi-city Japon trips |
| eSIM voyage Japon | One-off prepaid | Data-only; install QR before NRT |
| Local carrier store | Prepaid in person | Store visit, passport, local language |
| Airport SIM | Prepaid at NRT | Queues, limited tourist English support |
Éviter les frais de roaming
- Turn off Data Roaming on your home SIM before you leave.
- Install a prepaid Japon eSIM on Wi-Fi before your flight.
- Enable the eSIM data line after landing at NRT.
- Keep your home number for SMS on Wi-Fi; do not use it for mobile data.
Évitez le roaming avec une eSIM Japon
Forfait prepaid—QR avant NRT, pas de facture surprise.
Japon Forfaits eSIM