Samsung: check SIM Manager
Open Settings → Connections → SIM Manager and look for Add eSIM. Then find the model code under Settings → About phone. Compare that code with Samsung’s current support information and the travel provider’s compatibility list.
Galaxy S and Z families are common eSIM candidates, but a model sold in one market may behave differently from one with the same marketing name sold elsewhere.
Google Pixel: check Network & internet
Open Settings → Network & internet → SIMs and look for Add SIM or Set up an eSIM. Confirm that the device is not carrier-locked, especially if it was purchased on an installment plan.
Open Google’s current eSIM help →Android departure checklist
Exact model codeRecord it before comparing compatibility lists.
Carrier lockConfirm with the selling carrier.
Stable Wi-FiInstall before you depend on the plan.
APN instructionsSave the provider’s setup steps offline.
Do not guess: if your phone is absent from the provider’s compatibility list, ask the provider before purchasing or use a physical SIM/roaming alternative.