Travellers staying connected in Tokyo, in flight and abroad with mobile data

4Usim Global Telecom

Stay connected. Wherever life takes you.

4Usim Global Telecom is an independent HIGHVIEW brand offering global mobile data services across more than 200 countries and regions.

From short trips and business travel to extended stays and multi-country journeys, we help you choose eSIMs, physical SIM cards and data plans to suit the way you travel and work.

Enquire About 4Usim

Connection,

Your Way.

Our long-standing telecom partnerships and network optimisation support dependable, high-speed data, low latency and transparent pricing.

4Usim helps travellers, international business teams and creators stay connected in Japan and around the world.

Find Your SIM

eSIM

Install a digital SIM directly on a compatible smartphone—no physical card swap and no extra Wi-Fi router to carry. Apply and set up online, including while you are abroad.

Physical SIM

Prefer a physical card? Insert the supplied SIM into your phone and follow the setup instructions. Keep your original SIM safe so you can switch back when you return.

Simple Online Setup

Complete your application and setup online, without visiting a counter. Follow the supplied instructions to switch plans smoothly and stay connected with less to carry.

Get Connected.

In a Few Steps.

Start by checking whether your phone supports eSIM. Tell us your destination, travel dates and data needs, and we will help you find a suitable option.

For questions about eSIMs, SIM cards or global data plans, contact the HIGHVIEW team.

Contact the 4Usim Team

01 — Check Your Device

Confirm that your smartphone supports eSIM before choosing a plan. If you prefer a physical SIM, check that your device is compatible.

02 — Choose & Receive

Request a suitable plan. Once your application is complete, we send the setup link and the information you need to get started.

03 — Set Up & Connect

Follow the supplied instructions to install and configure your eSIM. Once setup and activation are complete, you can start using mobile data.