Stay Connected in Cambodia
Network coverage, costs, and options
Connectivity Overview
Cambodia's mobile connectivity has improved dramatically over the past decade, with 4G coverage now reaching most tourist destinations and urban areas. The country has solid network infrastructure in cities like Phnom Penh and Siem Reap, though rural areas can still be patchy. Three major carriers dominate the market: Cellcard, Smart Axiata, and Metfone. Data speeds are generally reliable for messaging, social media, and video calls, though don't expect blazing fast downloads. Most travelers will find connectivity adequate for their needs, whether exploring Angkor Wat or working remotely from Phnom Penh cafes. The good news is that staying connected is relatively affordable and straightforward, with multiple options ranging from tourist SIM cards to modern eSIM solutions.
Get Connected Before You Land
We recommend Airalo for peace of mind. Buy your eSIM now and activate it when you arrive—no hunting for SIM card shops, no language barriers, no connection problems. Just turn it on and you're immediately connected in Cambodia.
Network Coverage & Speed
Cambodia's mobile networks operate on standard GSM frequencies, making them compatible with most international phones. Cellcard offers the most comprehensive coverage and is often considered the premium option, with strong 4G networks in tourist areas and decent rural reach. Smart Axiata provides competitive speeds and coverage, particularly strong in urban centers, while Metfone rounds out the big three with budget-friendly options. 4G coverage is excellent in Phnom Penh, Siem Reap, Sihanoukville, and along major highways, but can become spotty in remote provinces like Mondulkiri or Ratanakiri. Network speeds typically range from 10-30 Mbps in good coverage areas, which is perfectly adequate for most travel needs. All carriers offer 4G services, and 5G is beginning to roll out in major cities. International roaming agreements exist with most global carriers, though costs can be prohibitive. The networks generally handle voice calls well, and VoIP services like WhatsApp calling work reliably on data connections.
How to Stay Connected
eSIM
eSIM technology works well in Cambodia and offers significant advantages for travelers. The main benefit is instant activation - you can purchase and activate your plan before landing, ensuring immediate connectivity upon arrival. This eliminates the airport SIM card hunt and potential language barriers. Providers like Airalo offer Cambodia-specific plans with transparent pricing and easy management through their app. Costs are typically higher than local SIMs - expect to pay around $10-15 for a week's worth of data that might cost $5-8 locally. However, the convenience factor is substantial, especially for shorter trips. eSIM also lets you keep your home number active simultaneously, which is crucial for business travelers or those needing to receive important calls. The main drawbacks are cost and the fact that not all phone models support eSIM technology - check compatibility before traveling.
Local SIM Card
Local SIM cards remain the most economical option for Cambodia connectivity. You can buy them at the airport, though prices there are inflated - better to wait until you reach the city. Phone shops are everywhere in tourist areas, and staff often speak basic English. You'll need your passport for registration, which is mandatory but straightforward. Cellcard tourist SIMs cost around $5-8 for 7-15GB valid for 7-30 days, while Smart and Metfone offer similar packages. Activation is usually immediate, and shop staff will help set up your phone. The main advantages are cost and the ability to easily top up or change plans. However, there are hassles: you might get a phone that doesn't work properly, registration can be time-consuming, and you'll need to handle everything in person. For longer stays over a month, local SIMs become increasingly attractive as you can access better long-term rates and local customer service.
Comparison
Local SIMs win on pure cost - typically 40-60% cheaper than eSIM options. However, eSIM dominates on convenience, safety, and immediate connectivity. International roaming is the most expensive option, often 10-20x more costly than local alternatives, though some carriers now offer reasonable travel packages. eSIM strikes the best balance for most travelers: slightly more expensive than local SIM but dramatically more convenient, reliable, and secure. You avoid potentially dodgy airport vendors, language barriers, and the risk of getting a defective SIM card.
Our Recommendations
First-time visitors: Go with eSIM through Airalo - the convenience and peace of mind are worth the extra cost. You'll have connectivity the moment you land, avoiding airport hassles and ensuring you can navigate, translate, and communicate immediately. Budget travelers: If every dollar counts, local SIMs are cheaper, but consider whether the $5-10 savings are worth the potential headaches. eSIM still makes sense unless you're on an extremely tight budget. Long-term stays (1+ months): Local SIM becomes the smart choice here. The cost savings add up significantly, and you'll have time to properly research the best carrier and deals. Visit a proper phone shop in the city, not airport kiosks. Business travelers: eSIM is your only practical option. You need immediate, reliable connectivity, and the ability to maintain your primary number. The cost difference is negligible compared to your time value, and you can't afford connectivity issues during important meetings or calls.
Our Top Pick: Airalo
For convenience, price, and safety, we recommend Airalo. Purchase your eSIM before your trip and activate it upon arrival—you'll have instant connectivity without the hassle of finding a local shop, dealing with language barriers, or risking being offline when you first arrive. It's the smart, safe choice for staying connected in Cambodia.
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