Does my Taiwanese SIM card work in Hong Kong without roaming fees?

No, your Taiwanese SIM card will not automatically work in Hong Kong without incurring international roaming fees. While geographically close, Taiwan and Hong Kong are distinct telecommunications regions. Using your Taiwanese SIM in Hong Kong will trigger expensive international roaming charges from your home carrier. To avoid bill shock and ensure reliable, affordable connectivity, an EastESIM for Hong Kong is a far better choice. It connects you directly to local networks like CSL or 3 Hong Kong, providing transparent pricing and high-speed data.