📱 How to Choose the Best SIM Card and Mobile Internet Plan in Cambodia
A complete guide to buying a SIM card in Cambodia. Learn about Cellcard, Metfone, and Smart—compare data plans, prices, and how to stay connected securely while traveling in Cambodia.

Why Getting a Local SIM Card Matters
Upon arriving in Cambodia, one of your first priorities should be to establish a reliable internet connection.
If you cannot immediately contact family or use online services, a stable local connection becomes essential.
While international roaming might offer short-term access, it’s expensive and unsuitable for long stays.
For travelers planning to remain in Cambodia for more than three days, purchasing a local SIM card is highly recommended.
A Cambodian number not only lowers communication costs but also improves convenience for booking rides, hotels, and daily communication.
Major Mobile Operators in Cambodia
Cambodia’s telecom market is dominated by three major providers: Cellcard, Metfone, and Smart.
| Operator | Coverage | Strengths |
|---|---|---|
| Cellcard | Nationwide (strong in cities) | Affordable data plans |
| Metfone | Widest coverage (even rural areas) | Reliable voice service |
| Smart | Best 4G speed in Phnom Penh | Great for streaming and social media |
In urban areas such as Phnom Penh and Siem Reap, all three perform well.
In remote regions, you might experience weaker 4G signals, so locals often use two SIM cards from different networks.
It’s even common to see dual numbers with the same last digits but different prefixes for easier management.



Data Packages and Personal Experience
Each provider offers prepaid and monthly data packages based on your needs.
For example, I currently use Cellcard’s $6 monthly plan, which includes 60GB of 4G data.
This plan comfortably supports my daily activities—social media, video streaming, and blog posting.
Since I rarely make voice calls or send SMS messages, the data-only plan fits my lifestyle perfectly.
You can purchase SIM cards directly at airports, shopping malls, or official stores by presenting your passport for registration.
Turning Your SIM Into a Mobile Hotspot
For travelers carrying multiple devices (phones, laptops, tablets), the SIM card can be inserted into a 4G WiFi dongle to create a personal hotspot.
This setup offers several benefits:
- Secure connection for online banking or cryptocurrency transactions.
- Avoid reliance on public WiFi networks, which can pose security risks.
- Easy sharing of internet across multiple devices.
When choosing a hotspot device, ensure it supports multi-network compatibility for smooth switching between carriers.
Some cheaper models may not fully support 4G, so check specifications before purchase.



Practical Tips for Connectivity and Safety
- 📶 Check signal strength before traveling to rural areas.
- 🧾 Always buy SIM cards from official stores or verified resellers to avoid scams.
- 🔐 Avoid logging into sensitive accounts on public WiFi.
- 💰 Use prepaid plans if you’re staying short-term to control spending.
Maintaining stable, private internet access ensures both safety and convenience while exploring Cambodia.
Final Thoughts — Stay Connected, Travel Smarter
Reliable network access is no longer a luxury—it’s a necessity for modern travelers.
Whether you’re visiting for a few days or several months, investing in a local SIM card will save you money and reduce frustration.
Among the top providers, Cellcard, Metfone, and Smart each offer excellent coverage and flexible data options.
Choose the one that best fits your travel route, and you’ll enjoy a smooth, connected experience across Cambodia.





