3 min read
How to Buy a Travel eSIM Online
Buying a travel eSIM takes under 2 minutes. Here is the complete process — from choosing your plan to having data the moment you land.
Step 1: Choose your destination and plan size
Go to lte.app and search for your destination country. Select a plan based on trip length and data needs. A rough guide: 1 GB/day for standard travel, 2 GB/day for heavy use. Validity should cover your full trip.
Step 2: Pay and receive your QR code
Pay by card or Apple Pay / Google Pay. Within seconds, your QR code arrives by email and is available in the LTE.app dashboard. There is no waiting for a physical product to ship.
Step 3: Install the eSIM before you fly
- 1Open your QR code email on a computer or second device
- 2On your phone: Settings → Cellular → Add eSIM → scan QR code
- 3Give the eSIM a label (e.g., "Japan Travel")
- 4Leave the eSIM disabled until you land — it will not use data while disabled
Step 4: Enable when you land
- 1Enable the eSIM line in Settings → Cellular
- 2Enable data roaming for the eSIM line
- 3Set the eSIM as your mobile data source
- 4Wait 60 seconds for carrier registration
- 5You now have local data without a SIM card
Having trouble? Smart Coach diagnoses automatically.
Open LTE.app and tap Smart Coach. It checks your APN settings, roaming state, and carrier connection automatically — even without mobile data.
Frequently asked questions
Can I buy an eSIM and install it later?
Yes. Most LTE.app plans have a 30–180 day window to install the QR code after purchase. Validity (your data countdown) only starts when you first connect to a local carrier — not when you buy or install.
What if my QR code does not work?
Contact LTE.app support immediately. Most QR issues are caused by carrier-locked devices or expired installation windows. Smart Coach in the LTE.app can also diagnose issues automatically.
Troubleshooting guides
Related guides
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