Guides

Buy a Phone in Japan

New or used, from a carrier or unlocked — how buying a smartphone works, and how it connects to your contract.

Menus, labels and guide explanations are available in the selected language. Carrier names, plan names and other proper nouns may remain in their official form.
Last checked: 2026-08-29 (JST)Application methods and support options can change. Always check the latest official information before applying.

Where phones are sold

  • Carrier & sub-brand shops — sell devices tied to a contract, often with installment plans and campaigns.
  • Carrier online stores — same devices, shipped to you or set up as an eSIM.
  • Electronics retailers — sell both carrier devices and SIM-free (unlocked) phones.
  • Manufacturer & unlocked — buy the phone outright, then choose any compatible plan or SIM.
  • Used / refurbished — check the network bands, battery, and that it is not payment-locked (赤ロム).

Phone cost and service cost are separate

Coût du téléphone

  • Prix ​​de l'appareil
  • Payé une seule fois ou divisé en plusieurs versements
  • Restant dû si vous annulez le service

Coût du service mobile

  • Data
  • Appels & SMS
  • Possibilités
  • S'arrête lorsque vous annulez
Deux choses distinctes sur une seule facture. Comprendre la répartition rend les campagnes beaucoup plus faciles à lire.

Paying in installments

Exemple de prix d'appareil¥120,000
Divisé en versements24 months
Ajouté à votre facture mensuelle¥5,000 / month
Un exemple seulement. Les prix réels des appareils, le nombre de versements et toute vérification de crédit dépendent de l'opérateur et de l'appareil.
A device bought on installments is a separate agreement from your mobile service. If you cancel the service, the remaining device balance is usually still owed.

Bands & compatibility

A phone works best if it supports the frequency bands of the network you choose. Devices sold by a Japanese carrier are tuned for that carrier. An unlocked phone bought abroad may work but can miss some bands — check before you rely on it.

Related guides

Related guides

Sources