SimOptions does not provide a Japan eSIM that includes a phone number or SMS capability. All Japan eSIM plans from this provider are data‑only. Travelers who need voice or text services can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, but some destinations may block or restrict these services, so it is advisable to verify that the VoIP apps you rely on are accessible in Japan before purchasing a SimOptions eSIM.