What Is an eSIM and How Does It Actually Work?
A plain-English guide to embedded SIMs, QR activation, and why travelers are ditching plastic SIMs for good.
What is an eSIM?
An eSIM (embedded SIM) is a tiny chip soldered into your phone that does everything a plastic SIM does — without the plastic. Instead of swapping a card, you download a profile from your carrier and you're online.
Almost every flagship phone released since 2022 supports eSIM: iPhone XS and newer, Pixel 4 and newer, Samsung Galaxy S20+ and newer, and most mid-range Android devices since 2023.
How activation works
When you buy a GhostESIM plan, we provision a profile on the carrier network and email you a QR code. Scanning that code installs the profile in under 30 seconds — no store visit, no shipping wait.
- Buy a plan and pay in crypto
- Get a QR code by email within minutes
- Scan with your phone's camera in Settings
- Land, toggle data roaming, you're online
Why eSIM beats plastic SIM cards
No more airport kiosks at 2am, no more lost SIM ejector tools, no more cutting nano-SIMs with scissors. You keep your home number active and add a travel data line on top.
And because the profile is software, you can store dozens of profiles on one phone and switch between them instantly.
Is eSIM safe?
Yes. The eSIM standard is governed by GSMA and uses the same hardware-level security as physical SIMs. Profiles are cryptographically signed and tied to your device's secure element.
Frequently asked questions
Does my phone support eSIM?+
If you have an iPhone XS or newer, a Pixel 4 or newer, or a Samsung Galaxy S20+ or newer, yes. Dial *#06# — if you see an EID number, you have eSIM.
Can I keep my regular number active?+
Yes. Modern phones run a physical SIM and an eSIM at the same time. Keep your home number for calls, use the eSIM for data abroad.
What happens if I delete the eSIM profile?+
The profile is gone for good. Contact support@ghostesim.co and we'll re-issue your QR code if your plan is still active.
Ready to go online anywhere?
Pay in crypto, get your QR code in minutes. Use code GHOSTESIM for 10% off.
