yaySIM does not currently offer a Macau eSIM that includes a phone number or SMS capability. The only plans available for Macau are data‑only eSIMs, so travelers cannot use traditional voice or SMS services provided by the carrier.
Travelers who wish to communicate while in Macau can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict access to specific apps or VoIP services, so it is advisable to verify that the apps you rely on are accessible in Macau before purchasing a plan.