esim

eSIM is Viettel's integrated SIM service with many advantages, however, during use, users may also encounter the situation of eSIM losing signal.

eSIM is a new term in the world of technology village recently, it appeared almost the same time the iPhone series X launched (iPhone Xr - iPhone Xs - iPhone Xs Max).

Perhaps it would be more reasonable to know what SIM is, before going into the eSIM technology.