CUniq GO "Travel eSIM" is applicable to designated iphone model#:
Requires an iPhone with iOS 12.1 or later. To use two different carriers, your iPhone must be unlocked.
iPhone model of select or specific carriers is not supported this service.
CUniq GO "Travel eSIM" is applicable to designated Android model#:
The overseas and Hong Kong, Macau, and Taiwan versions of Android-based device models can support CUHK's eSIM functionality, provided that they have support for the GSMA standard for eSIM functionality.