指南

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.

菜单、标签和指南说明均以所选语言显示。运营商名称、套餐名称及其他专有名称可能保留官方写法。
最后确认:2026-08-29 (JST)申请方式和支持选项可能变化。申请前请务必查看最新官方信息。

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

手机费用

  • 设备价格
  • 一次付清或分期付款
  • 即使取消通信服务,仍需支付设备余款

通信服务费用

  • Data
  • 通话和短信
  • 选项
  • 取消服务后停止收费
同一张账单中的两项独立费用。理解区别有助于看懂优惠活动。

Paying in installments

设备价格示例¥120,000
分期付款24 months
加入每月账单¥5,000 / month
实际设备价格、分期期数和信用审查取决于运营商和设备。
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