eSIM for Sihanoukville
Sihanoukville is Cambodia's main coastal hub and the jumping-off point for the islands. The town has solid 4G, but signal drops on the boat to Koh Rong and thins on the quieter island beaches.
An eSIM Cambodia gives you access to the same plans in Sihanoukville as in the rest of the country. 5 GB is generally enough for maps, messaging and social media, while video streaming and hotspot use require more data. The plans shown range from 1 to 20 GB and start at $1.90. They are fully refundable within 30 days provided the eSIM has not been used on a network at the destination. The activation link is sent by email after purchase.
Cambodia eSIM plans
Prices in USD. Instant QR activation. Pick your data, land connected.
Coverage in Sihanoukville
Sihanoukville town has solid 4G on Smart, Cellcard and Metfone. The islands offshore (Koh Rong, Koh Rong Sanloem) have coverage in the main beach and village areas but dead spots are common away from them, and the boat crossing loses signal. Smart is the safer pick for the islands.
Best network here
Smart Axiata
| Area | Best network | What to expect |
|---|---|---|
| Sihanoukville town | Smart / Cellcard | Solid 4G across the developed areas. |
| Ferry to the islands | Smart | Signal drops mid-crossing; reconnects near the pier. |
| Koh Rong main beaches | Smart | Coverage in the main village and beach; dead spots elsewhere. |
| Quiet island beaches | Smart | Patchy to none; plan offline. |
How much data in Sihanoukville
3 to 5 GB covers a beach stay. If you are heading to the islands, download maps and save your accommodation contact before the boat, since signal cuts out on the water and at quieter beaches.
Sihanoukville eSIM FAQ
Is there mobile signal on Koh Rong?
In the main village and beach areas, yes, on Smart Axiata. Away from them dead spots are common, and the boat over loses signal. Download what you need before leaving the mainland.
Which network is best around Sihanoukville?
Smart Axiata. It is the steadiest in town and the safer pick for the islands offshore.
Will I have data on the ferry to the islands?
No, not mid-crossing. Signal drops in open water and returns as you approach the island pier.
Planning your Cambodia trip?
See the full Cambodia eSIM guide: operators, coverage, real prices and the honest verdict.
Your Cambodia eSIM connects to the local operator: Metfone. Based on our agreements with the network provider, we normally activate the best available operator for your plan and your location.