Is using SouthESIM more convenient than purchasing a local SIM card at Athens (ATH) Airport?

Absolutely! Opting for SouthESIM is a breeze compared to buying a physical SIM at Athens Airport (ATH). With a local SIM, you often face lengthy queues, especially after a big flight, and a mandatory passport registration process as required by EU law. SouthESIM bypasses all that hassle. You can activate it before you even land, so you're connected the moment you arrive, saving you time and letting you start your Greek adventure without any airport paperwork or delays.