Best SIM Cards and eSIMs for Cambodia: Smart, Cellcard and Metfone (2026)

This Hey, it's Cambodia guide is designed to answer a specific planning question quickly, then give you enough context to make the right choice on the ground. Information that changes frequently should always be checked again close to travel.

The quick answer

Cambodia has inexpensive mobile data, so most visitors should get connected early. A physical local SIM is usually good value for longer stays, while an eSIM is convenient if you want data active as soon as you land and your phone supports it.

Buying a physical SIM

Use an official operator shop or airport counter and bring your passport because SIM registration is required. Cellcard currently advertises Traveller SIM packages from short three-day plans through 30-day options. Smart and Metfone are also major networks, so compare the current package rather than choosing only by brand recognition.

Physical SIM or eSIM?

Choose a local SIM when price and local calling matter most. Choose an eSIM when convenience matters more and you want to keep your home SIM installed. Dual-SIM phones make it possible to keep your normal number while using Cambodian data.

Coverage and real-world use

Coverage can vary by neighbourhood and when travelling outside Phnom Penh. For a multi-city Cambodia trip, do not judge a network only from speed in BKK1. Download offline maps before long road journeys and keep essential booking details available offline.

Useful next steps

Pair this guide with our Techo Airport transfer guide and first 48 hours guide.

Practical planning tips

• Check opening times, schedules or entry rules again shortly before you go.
• Save important addresses and confirmations offline in case mobile data fails.
• Use exact map locations rather than relying only on a venue, hotel or terminal name.
• Build some buffer into transport days and avoid stacking two time-sensitive connections.
• For changing prices, treat quoted figures as a planning reference rather than a guaranteed fare.

Keep planning your Cambodia trip

For the wider picture, use our Phnom Penh arrival guide, 2026 cost guide and three-day itinerary. Hey, it's Cambodia also maintains local place pages and curated directories so you can move from planning to choosing an actual place.

How this guide is maintained

We separate stable advice from details that change quickly. Transport timetables, visa rules, promotions, prices, opening hours and review counts can move without warning. For those details, official operators and current local listings take priority over old screenshots or forum posts. This article is part of our 2026 Cambodia planning collection and is updated when material information changes.