MobiMatter does not provide an eSIM plan for Slovakia that includes a phone number or SMS capability; all the available plans are data‑only. Travelers who need to make voice or text messages can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may restrict or block certain VoIP services, so it is advisable to verify that the apps you rely on are accessible in Slovakia before purchasing.