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eSIM (HolySim)
Data
How an eSIM works when you travel.
Your phone already has an eSIM chip built in. You simply add a data bundle to it — via a QR code delivered straight to your inbox.
- Safe and reliable
- 24/7 support
Install eSIM in 3 steps
- 1
Pick your destination and bundle
Select your travel destination, how long you'll be away, and how much data you need. Price is calculated instantly.
- 2
QR code in your inbox
Right after payment, you receive an email with your QR code and installation instructions for iPhone and Android.
- 3
Check and install
Review your plan's activation conditions first. Then follow the installation instructions in your email.
Your number stays yours.
An eSIM works next to your regular number. You stay reachable and your settings stay in place.
Two networks, one phone
Use your eSIM for data while your regular SIM stays active for calls and texts.
Data only
HolySim eSIMs are data-only. Calling and texting still use your regular SIM.
Common concerns
Most recent iPhones, Samsung Galaxy devices, and Google Pixels support eSIM. Also make sure your device is unlocked — that is required for a foreign data bundle.
Can I install the eSIM at home?
That depends on the plan. Some plans start upon installation. Before scanning, check the activation conditions in your plan details and email.
Will my own number still work?
Absolutely. The eSIM is purely for mobile data. Your regular SIM card stays active for calls, messages, and your own phone number.
Can I make calls with the eSIM?
The bundle is data-only. But calling via WhatsApp, FaceTime, iMessage, or Teams works perfectly — just like at home, but using local data.