Fastest in the cities
Smart (Smart Axiata)
City-based trips, remote work, and anyone who wants the smoothest data experience in Phnom Penh and Siem Reap.
City-based trips, remote work, and anyone who wants the smoothest data experience in Phnom Penh and Siem Reap.
Smart, owned by the Malaysian group Axiata, is Cambodia's second-largest network and generally the strongest performer in cities and larger towns. It was the first operator in the country to launch 4G, sells traveller SIMs at airport booths, and is the usual recommendation for a trip centred on Phnom Penh and Siem Reap.
September 2026
Smart Axiata is part of the Malaysian Axiata Group, and it built its reputation on being first and fastest – it launched Cambodia’s first 4G network in 2014, well ahead of its competitors, and has generally led independent speed testing in urban areas since.
For most of our guests, Smart is the default recommendation. A typical Cambodia itinerary spends its nights in Phnom Penh, Siem Reap, Kampot or Sihanoukville, and Smart is at its best in exactly those places.
Rural coverage. Smart is good across the country’s populated areas, but in the northeastern provinces and on the smaller islands, Metfone will hold a signal where Smart does not. If your trip is genuinely remote, carry Metfone or expect to be offline in places – which, to be fair, is sometimes the point.
Smart’s airport booths are among the easiest to deal with, staffed by people who set up traveller packages dozens of times a day and will put the SIM in your phone for you. Bring your passport. If your phone supports eSIM, you can skip the counter entirely.
Travellers heading beyond the main towns - Mondulkiri, Ratanakiri, Preah Vihear, the islands.
Cambodian-ownedTravellers who want a simple, short tourist package and are staying on the main routes.
The fourth networkShort city stays where an unlimited-data day pass is more convenient than a data allowance.