What is an eSIM?
Learn about eSIM technology and how it replaces traditional SIM cards.
What is an eSIM?
An eSIM (embedded SIM) is a digital SIM built directly into your device. Instead of inserting a plastic card, you download a mobile plan over the internet and it is stored on a tiny chip already inside your phone.
How Does It Work?
When you purchase a Simsima eSIM, you receive installation instructions — either a Smart Link (one-tap install), a QR code, or manual activation codes. Once downloaded, the eSIM profile sits alongside your regular SIM, so you can keep your home number active while using Simsima for data abroad.
Key Benefits
When Should I Use an eSIM?
eSIM is ideal for:
Is My Phone Compatible?
Most smartphones released since 2018 support eSIM. This includes iPhone XS/XR and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and many others. Check our eSIM Compatible Devices page for a full device list.
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