eSIM for Cambodia

Roameo's Cambodia eSIM roams onto the national 4G/5G networks. Coverage is reliable in Phnom Penh, Siem Reap, Battambang, Sihanoukville and Kampot, and the whole Angkor Archaeological Park has service — genuinely useful for calling a tuk-tuk between temples that sit kilometres apart. It thins fast outside that: the Cardamom Mountains, Mondulkiri and Ratanakiri, and the boat routes out to Koh Rong and Koh Rong Samloem run from patchy to nothing, and the Tonlé Sap floating villages are hit and miss. Cambodia uses US dollars alongside the riel for most transactions and ATMs mostly dispense dollars, which is worth knowing before you land. Data-only, tethering supported, home SIM keeps your number.