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.

By LTE.app Editorial Team

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

1
Open your QR code email on a computer or second device
2
On your phone: Settings → Cellular → Add eSIM → scan QR code
3
Give the eSIM a label (e.g., "Japan Travel")
4
Leave the eSIM disabled until you land — it will not use data while disabled

Step 4: Enable when you land

1
Enable the eSIM line in Settings → Cellular
2
Enable data roaming for the eSIM line
3
Set the eSIM as your mobile data source
4
Wait 60 seconds for carrier registration
5
You 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.

Get LTE.app →

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

🔧 eSIM QR Code Expired or Not Working?🔧 eSIM Not Compatible With My Phone

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