Best eSIM for Cambodia

Last updated: 2026-09-29

Best eSIM Plans for Cambodia (2026)

Cambodia is an easy, affordable eSIM destination — Phnom Penh, Siem Reap, and the southern coast all have dependable 4G. You'll want a connection the moment you land for Grab rides, Angkor temple maps, and translating Khmer menus.

Price Comparison (30-Day Local Plans)

Airalo's cheapest 30-day single-country plans. We undercut them at every common size up to 10GB.

How Much Data Do You Need in Cambodia?

Wi-Fi is common in Siem Reap and Phnom Penh hotels, cafes, and guesthouses, but it's slow and unreliable once you're temple-hopping or on the coast. Mobile data covers:

• Maps — navigating the Angkor complex, Phnom Penh's grid, and tuk-tuk routes (~100MB/day)
• Grab — Cambodia's main ride-hailing and food-delivery app, essential in both cities (~30MB/day)
• Google Translate — Khmer script is hard to read; the camera tool helps with menus and signs (~30MB/day)
• Social & photos — uploading temple sunrises and street-food shots (~200-400MB/day)

Our recommendation: - 4-5 day Siem Reap & Angkor trip: 5GB — $11.54 - 1-2 week loop (Phnom Penh + Siem Reap + coast): 10GB — $18.41 - Extended stay or heavy use: 20GB — $33.35

Coverage in Cambodia

Our Cambodia eSIM runs on Metfone, the country's largest mobile network, with the broadest reach into smaller towns and rural provinces — exactly where weaker networks drop out. That means reliable maps around the Angkor temples and a steady signal on the road between cities.

Network & Speed — Not Just Price

Two things separate a great eSIM from a frustrating one, and neither shows up in the headline price:

The network it runs on. Our Cambodia eSIM connects to Metfone, the country's largest network with the widest 5G footprint and the best reach into rural provinces. A cheaper eSIM riding a smaller network can mean slower speeds and dead zones the moment you leave the cities.

Full-speed data, no daily throttle. Watch the "unlimited" plans — most big resellers (Airalo included) actually cap you at ~3GB/day of full speed, then throttle to 1 Mbps, too slow for live maps or a video call. Our plans run at full speed for every gigabyte, start to finish.

Cambodia-Specific Tips

The Angkor complex is big — pin your temples

Coverage around Siem Reap and the main Angkor temples is good, but the complex sprawls and outer temples (like Beng Mealea or Koh Ker) get patchy. Pin your route and download offline maps before a sunrise start.

Grab is your lifeline in the cities

Grab handles ride-hailing, tuk-tuks, and food delivery in Phnom Penh and Siem Reap. It needs a live data connection — your eSIM has you covered the moment you land, with no airport SIM queue.

Cash is king, but apps aren't far behind

Cambodia runs largely on US dollars in cash, but ABA and Wing apps are everywhere for QR payments. Keep data on hand for both.

Island trips lose signal offshore

Boats to Koh Rong and Koh Rong Sanloem lose coverage once you're well offshore, and some quieter beaches have thin signal. Download maps, music, and reading before you sail.

How to Set Up eSIM for Cambodia

1. Purchase a Cambodia plan from eSIM-Now
2. Receive your QR code by email instantly
3. Install at home before you fly (Settings → Cellular → Add eSIM → scan QR)
4. Download offline Google Maps for Siem Reap and Phnom Penh while on Wi-Fi
5. Land at Phnom Penh or Siem Reap — your eSIM connects automatically