Prepare your travel eSIM before a flight: install, save, switch on

Read the live order first, install only when its instructions allow, save the recovery path, then switch the data line on at the instructed moment.

Traveler packing before a flight beside a navy preflight board: read the order, install on reliable Wi-Fi, then turn the line on when instructed
The safe sequence is order-led: read first, install only when permitted, and enable the travel line at the instructed moment.

Treat installation and plan start as separate checkpoints. Read the live order before downloading the profile; if it permits pre-installation, use reliable internet and save the order offline. Turn on the travel line, data roaming and the data-line choice only as that order instructs. If arrival fails, keep the profile and use the troubleshooting path.

Installation and plan start are different questions

Apple describes several ways a carrier can deliver and activate an eSIM; the carrier’s instructions remain part of the setup, so a phone button labelled ‘Activate’ does not by itself reveal when a travel allowance begins. [apple-setup] [apple-travel]

Google likewise routes Pixel setup through the carrier flow. Letisim therefore does not publish one universal start rule: the live order is the authority for that plan. [google-setup] [apple-travel]

Read the order before downloading

Choose the branch that matches what the order actually says.

INSTALL NOW

The order explicitly permits pre-installation

  • Use reliable Wi-Fi or another stable connection
  • Finish the profile download without changing arrival settings
  • Confirm the profile appears, then stop at the stated boundary

WAIT

Timing is missing or tied to installation

  • Do not scan or enter the activation data yet
  • Keep the order accessible offline
  • Ask support to confirm the exact trigger

Words such as install, activate, enable and connect can describe different stages. Follow the order’s action, not a generic label.

Three moments, three different jobs

  1. AT HOME

    Verify and download

    Confirm device readiness, read the order and install only if allowed while reliable internet is available.

  2. BEFORE BOARDING

    Make recovery offline

    Save the order number, installation instructions and support path without exposing QR or activation data.

  3. AT DESTINATION

    Choose the travel data line

    Turn on the line and data roaming only if the order requires them; keep the home line’s data roaming off.

Save a recovery packet, not secrets

Keep enough context to recover without making activation data easy to leak.

  • Order reference and destination
  • Native installation and activation instructions
  • Support link and the phone’s model name
  • A note that QR codes, activation codes, EID and IMEI stay private

Letisim · Live catalog · current options

Current Letisim plans

Prices and availability load from the live catalog. Verify final details before purchase.

  • Data, duration and price — all on one screen.
  • Your QR code and setup guide work offline — even at the airport with no signal
  • See the final price before you pay
Open all current plans

Sources

Updated: 2026-08-13

  1. Set up eSIM on iPhone — Apple Support · 2026-08-13
  2. Use eSIM while traveling internationally with your iPhone — Apple Support · 2026-08-13
  3. Get a SIM and add it to your Pixel phone — Google Pixel Help · 2026-08-13