In this guide 3 sections
Find the model you actually own
Open Settings > General > About on iPhone, or Settings > About phone on Android, and note the model number, software version and country of purchase. The model number matters when the same phone name is sold with different features in different markets.
Enter those details in our compatibility checker. An Add eSIM menu or an EID is a useful clue, but it doesn’t settle the carrier lock or the requirements of a particular offer.
Check the carrier lock separately
On iPhone, look in About for Service Provider Lock/Carrier Lock; No SIM restrictions is the result you’re looking for. If it shows a restriction, the original carrier is the one to ask about unlocking it.
Android doesn’t have one dependable lock-status screen across every brand. Ask the original carrier to confirm that your exact handset can use another provider’s SIM or eSIM; a menu labelled Add eSIM isn’t that confirmation.
Match the plan to the phone and trip
Once the handset is cleared, put the countries, dates and expected usage into Plan my trip. It helps estimate the data requirement, then you can compare the returned offers’ country lists and usable days. If the selected plan lists extra handset or radio-band requirements, those still apply.
For example, our longer local KDDI Japan offers need a compatible handset including LTE Band 18 or 26. Ordinary eSIM capability alone doesn’t establish that match.
Buy and save the setup email before flying, then install after landing on working, steady Wi-Fi. If the model or lock status remains unclear, send the Travel Desk the model number, purchase region and original carrier in text before paying. Keep device identifiers and activation details private.
