Buying a local SIM at Kuala Lumpur International Airport (KLIA) is straightforward — CelcomDigi, Maxis, and U Mobile run kiosks in the arrivals hall with passport registration, and tourist packages typically cost RM 30 to RM 50 (around $7 to $12 USD). The queue takes 15 to 30 minutes after a long flight, plus you'll need to swap your physical SIM. The ETravelSim Malaysia eSIM installs at home before you fly, requires no passport handover at the airport, and connects the moment your plane lands at KLIA, Penang International, or any other Malaysian airport.