Same price even with 5G
New customers
Contact us by phone
(Free call)0120-989-970
9:00-18:00 [Open all year round]
monthly fee
The price remains the same even with 5G!
This price for everyone ♪
(1,408 yen including tax)
(1,958 yen including tax)
(2,508 yen including tax)
(3,058 yen including tax)
(3,828 yen including tax)
| Data Carryover | Any unused data will be used the following month. Automatically carry over |
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| Block nuisance calls and messages |
attention! free *Settings in the app are required to start using the service. |
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| Voice calls (domestic calls) |
Unlimited calls (5 minutes/call) 500yen (550 yen including tax) Unlimited calls (60 minutes/call) 1,500yen (1,650 yen including tax) Domestic calls: 20 yen (22 yen including tax)/30 seconds |
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- With Date Mori, 1GB will be increased to 5GB, 5GB will be increased to 10GB, 10GB will be increased to 20GB, 20GB will be increased to 30GB, and 50GB will be increased to 60GB. See here for applicable conditions.
- Separate charges apply for the broadband universal service fee, telephone universal service fee, telephone relay service fee, call charges, SMS communication charges, etc.
- A contract administration fee of 3,000 yen (3,300 yen including tax) is required (excluding A Plan SU). However, if you sign up for other J:COM services at the same time, the contract administration fee for J:COM MOBILE may be waived.
Overview of Date Mori
- Eligibility is automatically applied.
- Applies to the whole family.
- Surplus data capacity can be carried over.
- eSIM（AプランSU）では、対象J:COMサービスのパーソナルID(契約者ID)と同一IDでご契約いただく回線のみデータ盛が適用。
J:COM MOBILE
Easy to switch!
Great value from the first line
Simple price plan
Same price for 5G!
Choose a price plan that suits you
Smartphone savings calculatorTerminal list
iPhone
Android
About 5G
5G makes everyday life more convenient than ever
With 5G, you can easily watch large videos!
With 5G, new frequency bands will become available for mobile communications, and it is said that in the future, communication speeds will be about 20 times faster than 4G LTE. Download latency is also greatly reduced.
- "Approximately 20 times" is the maximum value according to technical standards and differs from the actual usage speed.
5G area
You can check the areas where 5G is available.
Service area map (to au site)
★5G is available in some areas.
Application flow
Easy online application!
Even if you don't have to go to the shop and wait,
Complete the purchase process at home.
Sign Up
Pick up your device
Perform initial setup
New customers
Contact us by phone
(Free call)0120-989-970
9:00-18:00 [Open all year round]
FAQ
We introduce frequently asked questions from customers.
If you have any questions, please contact us by phone or chat.
What is 5G?
For details, please check here.
Can I still use the SIM?
はい。J:COM MOBILE Aプランご契約中のお客さまは、同じSIMカードで5Gサービスの利用が可能です。
Limited to J:COM MOBILE A plan (voice + data) subscribers.
5G communication requires a 5G terminal.
5Gになると具体的に何が変わりますか？
「超高速」「低遅延」「多数同時接続」が特徴です。高画質動画がすぐに読み込めるほか、混雑した場所でも通信が安定しやすくなります。
ミリ波とSub6の違いは何ですか？
Sub6は電波が遠くまで届きやすく広範囲のエリアカバーに適しており、ミリ波は超高速・大容量通信が可能な一方で、遮蔽物の影響を受けやすい特徴があります。J:COM MOBILEで提供している端末は主にSub6エリアに対応しています。
5Gを使うとバッテリーの減りが早くなりますか？
4Gとの切り替えが発生するエリアでは消費が増える傾向がありますが、最新のスマホでは省電力機能により最適化されています。
お客さまの端末・使用状況により異なります。
