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SIM DATA 5G SOFTBANK 1GBBest seller
1GB
Data
SOFTBANK
Carrier
30d
Billing cycle

SIM DATA 5G SOFTBANK 1GB

Best Seller

4.8Sold: 308
Monthly fee
¥1,900
First month fee
¥5,050
Next billing date06/25/2027
Billing for month 07 usage
Choose plan
Free shipping and activation fee when you sign up for a 6-month or 1-year plan

Carrier

SoftBank (Japan)

SIM Type

Data-only (no calling support)

Data Capacity

1GB high-speed

Validity Period

1 – 7 days or depending on the short-term package

Technology

4G LTE / 5G

After Data Limit

Data cut off or speed reduced (~128 Kbps)

Compatibility

International devices (SIM-free)

WiFi Sharing

Hotspot supported

Activation

Insert SIM or scan eSIM to use

Coverage

Nationwide Japan

Specifications

CarrierSOFTBANK
SIM typeData Only
Data1GB
Billing cycle30 days
CallsNot supported
After data capReduced speed
CompatibilityInternational devices (SIM-free)
CoverageAll of Japan

How to activate

1Order the plan and receive your SIM or eSIM code
2Insert the SIM or scan the QR code
3Set up the APN and start using it
High-speed data — stream video & join calls freely
Hotspot support for multiple devices
No long-term contract, works with international devices

Additional Information

SOFTBANK 1GB 5G DATA SIM – Minimal connection, ready when you need it.

You don’t always need a lot of data, just enough to stay online in important moments. A compact, cost-saving option that still ensures stable connectivity. Insert the SIM and use immediately – fast, simple, and exactly what you need.


Ultra-small data capacity – for minimal needs

1GB is not for the majority, but for users with very clear needs. Maintain connection in necessary situations, without excess.

  • Check maps, navigation while moving, check train routes

  • Messaging via apps (Line, WhatsApp)

  • Check email, quick information


An effective “backup internet” solution

You don’t always need to use data continuously.

  • Use as a backup SIM when WiFi is unstable

  • Quick connection in emergency situations

  • No dependence on public WiFi

This is a common choice for users who prioritize peace of mind over large data capacity.


Stable connection – prioritizing accessibility

Even with low data capacity, network quality is still ensured.

  • Works well in urban areas

  • Quick connection when needed

  • Supports 4G/5G depending on device


Cost optimization – lowest level to maintain connectivity

No need to pay for what you don’t use.

  • No calling function included

  • No charges for unnecessary services

  • Suitable for extremely basic needs


Device flexibility – multiple usage options

  • Use directly on smartphones

  • Share hotspot when necessary

  • Insert into a mini router if needed


Easy to use – no technical requirements

  • Insert the SIM and it works

  • Quick, simple setup

  • No contract, no commitment


✔️ SOFTBANK 1GB 5G DATA SIM is not for “heavy use”. It is designed for one purpose only: Keep you connected when it matters most, at the lowest cost.

Suitable if you:

  • Only need internet for a very short time

  • Use for maps and basic communication

  • Want a low-cost backup SIM