Digital SIM cards were a niche product less than a decade ago, when the concept for the Internet of Things — devices connected to the internet — was taking hold. Google was the first to offer an eSIM-enabled smartphone, and in the last several years major manufacturers like Samsung and Apple have made eSIMs standard, moving away from the physical chip.Airalo’s investors are betting this is just the start. “The digital travel eSIM market, whilst already worth $1 billion, is at the very early stag...