Internet & connectivity guide for travelers
Network: Good 4G in cities (Telkomsel), variable on remote islands
Physical SIMs require IMEI registration at the airport. An eSIM avoids the IMEI registration hassle entirely.
eSIM compatibility:4/5
View Indonesia eSIM plansApril–October (dry season)
Getting around: Domestic flights are essential between islands; taxis and ride-hailing (Gojek, Grab) in cities