3 min read
Do You Need Wi-Fi to Activate an eSIM?
Yes — but only during the initial QR scan. After installation, your eSIM does not need Wi-Fi to work. Here's exactly when you need internet and when you don't.
When you DO need Wi-Fi (during installation)
Scanning the QR code downloads the eSIM carrier profile from your provider's server over the internet. Your phone needs an internet connection to complete this download. This means:
- Install your eSIM at home over Wi-Fi before travelling — the safest approach.
- Or install at the airport using airport Wi-Fi.
- Or install on the plane using onboard Wi-Fi if available.
You do NOT need cellular data for installation — home Wi-Fi or any Wi-Fi connection works.
When you do NOT need Wi-Fi (after installation)
Once the eSIM profile is installed, it works independently. Activating the plan (turning it on when you land), receiving carrier signal, and using data all happen without Wi-Fi. The eSIM is registered on the carrier network directly — no ongoing internet connection required to maintain the registration.
Best practice: install before you travel
What if I forgot to install before travelling?
Read in English: View English version →
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