Apple
Does the iPhone SE (3rd gen) support eSIM?
Yes, the iPhone SE (3rd gen) has an eSIM.
The iPhone SE (3rd gen) supports eSIM alongside the physical SIM. Handy when travelling: keep your own number on the SIM and use the eSIM for mobile data abroad, without swapping in a local SIM.
Source: GSMArena
Check your iPhone SE (3rd gen) for an eSIM yourself
Dial *#06# on your phone. A 32-digit EID number means your phone has an eSIM. On iPhone check Settings > General > About; on Android check Settings > SIM manager.
Frequently asked questions about the iPhone SE (3rd gen)
Can I use an eSIM and a physical SIM at the same time on the iPhone SE (3rd gen)?
Yes. On the iPhone SE (3rd gen) you keep your own number on the physical SIM and use the eSIM (e-SIM) for mobile data at the same time. Ideal when travelling: you stay reachable and use an affordable data bundle.
How do I activate an eSIM on the iPhone SE (3rd gen)?
Scan the QR code you receive by email after purchase, or add the eSIM manually in Settings. It's easiest to install it at home before you leave.
Does an eSIM work abroad on the iPhone SE (3rd gen)?
Yes. Since the iPhone SE (3rd gen) supports eSIM, pick a data bundle for your destination before you leave. You're online the moment you land, with no roaming charges or local SIM.