Why use an eSIM in Philippines?
Since the SIM Registration Act came into force, every Philippine SIM has to be registered against an identity document before it will work, and tourist registrations come with their own validity window. That has turned what used to be a quick purchase at Ninoy Aquino International Airport (MNL) into a form, a photograph and a wait, right at the point where you have a connecting flight to Cebu or Caticlan to catch.
It is an awkward rule to run into, because the Philippines is a country where the phone is the itinerary. Island hopping means checking ferry schedules that change with the weather, booking a tricycle or a Grab, confirming a dive boat, and messaging a resort on an island whose only reliable contact is a Facebook page. A travel eSIM is installed on Wi-Fi before you leave home, needs no registration and no identity document, and begins its validity only when it first connects to a Philippine network, which for most people is somewhere between the aerobridge and the baggage belt.

