Updated & Verified for 2026 Travel

Cambodia Mobile Connectivity Guide: The Fastest Mobile Networks

Whether you are exploring the ancient temples of Angkor Wat or navigating the bustling streets of Phnom Penh, Smart delivers the absolute fastest speeds and best gaming experience, while Cellcard takes the crown for the best video streaming, according to Ookla’s latest H1 2025 Speedtest Intelligence report.
For the absolute fastest download speeds and most consistent network, Smart is the undisputed top choice, boasting a median download speed of 59.76 Mbps.
For the best video streaming experience while on the go, Cellcard is highly recommended, winning the top Video Streaming Score.
Skip the SIM card queues at Phnom Penh Airport (PNH). Purchase a prepaid Cambodia eSIM online before departure for instant data.
59.76Mbps Smart Avg Speed
55.30Mbps Ta Khmau Avg Speed
Instant eSIM Delivery

Performance data verified by Ookla Speedtest Intelligence® (H1 2025).

Match Your Itinerary to the Right Mobile Network

Whether you are taking a tuk-tuk in Siem Reap or working from a cafe in Phnom Penh, knowing which networks perform best will keep you connected.

🚀

Best for Speeds & Gaming

Major Cities & Nationwide

Winner: Smart

Sweeping the awards for Fastest Mobile Network, Best Mobile Network, and Best Mobile Gaming Experience. Perfect for travelers who want maximum connectivity and low latency.

Achieved a median download speed of 59.76 Mbps, the lowest latency at 37 ms, and won the Best Mobile Gaming Experience with a score of 73.10.

📺

Best for Video Streaming

Nationwide Coverage

Winner: Cellcard

If you love watching high-definition travel vlogs or streaming content during long bus rides between cities, Cellcard provides the smoothest video playback.

Won the Best Mobile Video Experience award with a top score of 71.85.

📶

Best for Network Consistency

Urban Centers & Transit

Winner: Smart

For travelers who want to ensure they stay connected to a reliable signal without constant drops in quality while moving around the country.

Recorded the best mobile network Consistency in Cambodia, with 90.8% of its samples meeting or exceeding the threshold of 5 Mbps download and 1 Mbps upload.

Detailed Technical Comparison (Powered by Ookla)

Analyzing these Ookla metrics helps you understand the mobile telecom landscape in Cambodia for your travel needs.

Comparison Metric
Smart
Smart
Cellcard
Cellcard
Ookla Avg. Download Speed* Based on Speedtest Intelligence H1 2025 59.76 Mbps 36.76 Mbps
Network Highlights Key performance metrics
★★★★★
Fastest Mobile Network, Best Gaming & Most Consistent
★★★★☆
Best Video Experience & Reliable Speeds
Real-World Experience What this means for you The absolute best choice for tourists wanting maximum speeds, quick uploads for photos, and flawless mobile gaming. Highly reliable for streaming video and staying entertained during long transit routes.
Key Strengths Ookla Award Categories
Fastest Network Best Gaming Most Consistent
Best Video Experience

The Ultimate Cambodia Connectivity Hack

Don't waste your first hour in Siem Reap dealing with physical SIM cards when you could be heading straight to Angkor Wat.

The Old Way

  • Landing at Phnom Penh (PNH) or Siem Reap (SAI) and queuing at telecom kiosks for a physical SIM.
  • Fumbling with a SIM ejector tool and risking losing your primary home SIM card.
  • Handing over your passport for mandatory registration requirements for local prepaid plans.

The Smart Solution

  • Buy a prepaid Cambodia eSIM online before your trip. Scan and connect instantly upon landing.
  • Keep your home number active for bank OTPs while using your local data for Google Maps and booking rides.
  • Enjoy seamless connectivity on top-tier networks without the hassle of physical stores.

Experience Cambodia with Seamless Data

Get connected the moment your plane touches down with a simple QR code scan.

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Cambodia Mobile Connectivity FAQs

Get answers to common questions about mobile internet speeds and choosing the right eSIM for your trip to Cambodia.

Which mobile network is the fastest in Cambodia according to Ookla?
Based on Ookla Speedtest Intelligence data for H1 2025, Smart is the fastest mobile provider, recording a median download speed of 59.76 Mbps.

Which network is best for streaming video in Cambodia?
Cellcard won the Best Mobile Video Experience award with a score of 71.85, making it the most reliable network for watching streaming content on the go.

Which Cambodian city has the fastest mobile internet?
According to the H1 2025 report, Ta Khmau recorded the fastest median mobile download speed among Cambodia’s most populous cities at 55.3 Mbps, followed by Siem Reap.

Which network is the most consistent in Cambodia?
Smart recorded the best mobile network Consistency in H1 2025, with 90.8% of its samples meeting or exceeding the minimum performance thresholds.