One Sim

With onesim, you install your eSIM once and never again. Every time you buy a new data package, it’s instantly ready to use - no reinstallation, no QR codes, no roaming headaches.

Whether you’re exploring Europe, heading across the Americas, or venturing into Asia, onesim keeps you connected with reliable data in every country you visit.

Stay online for maps, messaging, and memories - all with a single data plan.

Why travelers love onesim:

• One eSIM - install once and you’re set
• One data package per region - Traveling to Europe? Purchase one data package and you’re covered wherever you go!
• Seamless coverage - stay online as you cross countries
• Fast 4G/5G data - perfect for maps, chat, and travel apps