Best eSIM for Cambodia in 2026: Metfone for the Countryside, Smart for the Cities

Ask locals which network is best in Cambodia and the honest answer splits three ways depending on whether you're in Phnom Penh, deep in Battambang province, or just want the fastest possible connection wherever you happen to be.

Key Takeaways

- Metfone offers the most extensive network in Cambodia, reaching more than 95% of the country including remote and rural areas, and holds over half the market with roughly 10 million subscribers.

- Smart Axiata delivers the most consistent quality in urban areas and tourist hotspots like Siem Reap and Battambang, with strong 4G LTE performance.

- Cellcard currently leads on raw download speed (22 Mbps in testing), ahead of Smart (18.8 Mbps) and Metfone (13 Mbps), and performs reliably in Phnom Penh, Siem Reap, and Sihanoukville.

Why do recommendations for Cambodia split by network so sharply?

Cambodia's telecom market has consolidated around three main players - Metfone, Smart Axiata, and Cellcard - each with a genuinely different strength. Metfone built out the widest physical footprint, reaching remote and rural areas other operators haven't prioritized. Smart focuses on consistent urban and tourist-hotspot performance. Cellcard wins on raw speed where it has coverage. There isn't one network that wins on every metric simultaneously.

Which network fits your specific itinerary?

For a trip centered on Phnom Penh, Siem Reap, and Sihanoukville - the classic tourist circuit - Smart Axiata or Cellcard both perform well, with Cellcard edging ahead on speed and Smart offering more consistent quality across those specific locations. If your plans extend into rural provinces or off the main circuit, Metfone's broader rural buildout makes it the safer default, since it's the only one of the three reaching over 95% of the country including remote areas.

What's changing with 5G in Cambodia?

Cambodia launched 5G nationwide on January 1, 2026, with Cellcard, Metfone, and Smart Axiata jointly installing over 1,500 antennas, concentrated mainly in Phnom Penh and other major provinces. It's still early-stage as of 2026, so 4G remains the reliable expectation outside the largest cities.

Frequently asked questions

Which network is best for visiting Siem Reap and Angkor Wat?

Smart Axiata is popular for its strong 4G LTE performance and consistent coverage in Siem Reap specifically, though Cellcard is a close alternative if speed matters more to you.

Which Cambodian network has the widest rural coverage?

Metfone, reaching more than 95% of the country including remote and rural areas - the broadest footprint of the three main operators.

Which network is fastest in Cambodia?

Cellcard led raw download speed testing at 22 Mbps, ahead of Smart Axiata (18.8 Mbps) and Metfone (13 Mbps).

Is 5G available in Cambodia yet?

Yes, since January 1, 2026, though it's still early-stage and concentrated mainly in Phnom Penh and other major provinces - 4G remains the dependable baseline elsewhere.

Sources

• Opensignal, Cambodia Mobile Network Experience Report, February 2026, retrieved 2026-07-12, https://insights.opensignal.com/reports/2026/02/cambodia/mobile-network-experience
• Cambodia eSIM, Mobile Operators in Cambodia: Which One is the Best in 2026?, retrieved 2026-07-12, https://cambodiaesim.com/operators/