eSIMNEXA does not offer Hong Kong eSIM plans that include a phone number or SMS capability. Travelers can only purchase data‑only eSIMs from this provider. For voice and messaging, users generally rely on VoIP applications such as WhatsApp, Telegram, or iMessage, which can function over the data connection. However, since some destinations may block or restrict these services, it is advisable to confirm that the apps you need work in Hong Kong before making a purchase.