Getting connected with Coral eSIM takes four steps:

  1. Buy a plan: choose your destination and plan
  2. Install before departure: scan the QR code on home Wi-Fi to add the eSIM to your phone
  3. Turn it on when you land: enable data roaming for your Coral eSIM line
  4. Start automatically: your validity period starts when the eSIM first connects to a local network

Installing does not consume any days or data, so it is safe to set up well in advance. See "How to install on iPhone" and "How to install on Android".