All newer iPhones — including the XS, XS Max, XR, 11, 11 Pro, and 11 Pro Max — are supported. Additionally, all iPads with Apple SIM support are Airalo compatible.
Do note that iPhones sold in Hong Kong, Macau, and mainland China do not have eSIM support regardless of the type. Instead, these phones have standard dual-SIM support.
See the Airalo website for the full list of supported devices.