While only a handful of carriers will support Apple Dual SIM (eSIM) at first, its arrival within the new 2018 iPhone range heralds more rapid adoption of the technology in the future, as industry consensus has mostly been achieved.What is eSIMThe promise of eSIM technology is that users can swiftly switch between network providers on the fly, accessing the best available deal or strongest coverage as they go.
In truth, this isn''t quite how it works — it is conceivable that it could, but linking up with a new carrier also means porting your phone number, and that a task that takes time where it is possible at all.
Dual SIM is also a big deal in emerging markets.