OPPO puts eSIM in its Find line, the premium end of the range, and generally leaves it out elsewhere. As with several Chinese manufacturers, the version of the phone you own matters as much as the model.
Check this phone in one tap
Let the page work out which handset you are on, or type the model. It answers straight away, and it tells you how sure it is.
OPPO models that support eSIM
Find X3 Pro and the Find X flagships after it, including the Find X5 and Find X8 generations. The foldables: Find N2 Flip and Find N3.
OPPO models that do not
Most of the A-series, and most Reno models. These are mid-range phones where eSIM is not part of the specification.
Global version or Chinese version
OPPO sells different builds of the same phone in China and internationally. The Chinese versions typically do not have eSIM and run ColorOS configured for that market. If your OPPO came through an importer, check rather than assume.
How to check your OPPO
Open Settings → Mobile network → SIM card and mobile data. An option to add an eSIM confirms it. Depending on the ColorOS version, the entry may sit under Settings → Connection & sharing instead.
The check that always works
Open your phone's dialler and type *#06#. You do not need to press call. A panel appears with your device identifiers. If one of them is labelled EID, a 32-digit number, your phone has eSIM hardware. No EID means no eSIM.
This works on any phone, any brand, any region, and it is the only check that cannot be thrown off by a model name that was sold in several different versions.
What if your phone does not support eSIM?
Then a travel eSIM is not an option for that handset, and no app or update will change it: the eSIM chip is physical hardware. Your realistic choices are a local physical SIM bought on arrival, your own operator's roaming package, or using an older eSIM-capable phone as a second device. If you are close to replacing the phone anyway, every current flagship and most current mid-range models have eSIM built in.