The ETravelSim Sri Lanka eSIM runs on Mobitel (Sri Lanka Telecom Mobitel), one of Sri Lanka's two dominant carriers alongside Dialog. Mobitel is independently rated as Sri Lanka's speed leader in download, upload, and video streaming experience. Dialog has slightly broader rural reach in some specific hill country areas like Nuwara Eliya, but for trips covering Colombo, Kandy, the South Coast, the Cultural Triangle, and the safari parks, Mobitel covers all the routes you'll actually take.