日本でスマートフォンを買う
新品・中古、キャリア版・SIMフリー。スマートフォンの買い方と、契約とのつながり。
メニュー、ラベル、ガイド本文は選択した言語で表示されます。キャリア名・プラン名などの固有名詞は公式表記のまま表示されることがあります。
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 — キャリア向け端末とSIMフリー端末の両方を販売しています。
- 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
端末代金
- 端末の価格
- 一括払いまたは分割払い
- 通信契約を解約しても残債の支払いは続く
通信サービス料金
- データ通信
- 通話・SMS
- 各種オプション
- 回線解約で終了（別契約を除く）
Paying in installments
端末価格¥120,000
24回払い24カ月
毎月の請求に加算月額¥5,000
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.
関連ガイド
関連ガイド
出典
- Device manufacturer specifications
- Ministry of Internal Affairs and Communications (総務省)