The 60-second verdict
Cambodia is one of the cheapest countries in the world for travel data, and the provider gap here is enormous. Airalo's cheapest 30-day Cambodia plan is $72.50 and Holafly's is $73.90, because both sell the country as unlimited-only. Nomad sells fixed data at $15.00 for 5 GB / 30 days; we came in below that in August 2026. The dated index below prices our own tiers live.
For a one-week Angkor trip, the 1 GB / 7-day plan at $3.23 or the 500 MB-per-day option at $1.82 is genuinely all most people need.
Flysimio Cambodia eSIM
$3.23 from · instant QR · 7-day refund
Cambodia eSIM price index — August 2026
Across 4 providers and 14 plans compared in August 2026, the cheapest Cambodia eSIM data on a standard 3–50 GB plan works out at $2.40/GB (Flysimio, priced live). On the same measure the cheapest rival plan is Nomad at $1.80/GB — cheaper than our best equivalent plan, which costs 33% more per gigabyte.
| Provider | Plan | Price | Price per GB | Network | Best for | Price checked |
|---|---|---|---|---|---|---|
| Nomad | 20 GB / 45 days | $36.00 | $1.80/GB | Metfone | Easy app | Aug 15, 2026 |
| Flysimio | 20 GB / 30 days | $47.93 | $2.40/GB | Metfone | Live | |
| Nomad | 10 GB / 30 days | $24.00 | $2.40/GB | Metfone | Easy app | Aug 15, 2026 |
| Flysimio | 10 GB / 30 days | $26.10 | $2.61/GB | Metfone | Live | |
| Flysimio | 3 GB / 15 days | $8.58 | $2.86/GB | Metfone | Live | |
| Flysimio | 5 GB / 30 days | $14.30 | $2.86/GB | Metfone | Live | |
| Nomad | 5 GB / 30 days | $15.00 | $3.00/GB | Metfone | Easy app | Aug 15, 2026 |
| Flysimio | 1 GB / 7 days | $3.23 | $3.23/GB | Metfone | Live | |
| Nomad | 1 GB / 7 days | $6.00 | $6.00/GB | Metfone | Easy app | Aug 15, 2026 |
| Holafly | Unlimited / 7 days | $27.50 | — | Metfone | Unlimited data | Aug 15, 2026 |
| Airalo | Unlimited (3 GB/day) / 7 days | $29.50 | — | Smart | Coverage & app | Aug 15, 2026 |
| Airalo | Unlimited (3 GB/day) / 30 days | $72.50 | — | Smart | Coverage & app | Aug 15, 2026 |
| Holafly | Unlimited / 30 days | $73.90 | — | Metfone | Unlimited data | Aug 15, 2026 |
| Flysimio | Unlimited (2 GB/day) / 30 days | $150.00 | — | Metfone | Live |
- Holafly · Unlimited / 7 days: Unlimited with no daily high-speed cap; Holafly applies a fair-use policy for at most one day at a time.
- Airalo · Unlimited (3 GB/day) / 7 days: Airalo bills this as "Unlimited": 3 GB per day at full speed, then throttled to about 1 Mbps. Airalo's Cambodia store lists unlimited packages only.
- Airalo · Unlimited (3 GB/day) / 30 days: Airalo bills this as "Unlimited": 3 GB per day at full speed, then throttled to about 1 Mbps.
- Holafly · Unlimited / 30 days: Unlimited with no daily high-speed cap; Holafly applies a fair-use policy for at most one day at a time.
- Flysimio · Unlimited (2 GB/day) / 30 days: 2 GB per day at full speed, then 1 Mbps. Sold as 1–30-day passes; 30 days is priced here for comparison.
How this table is priced. Flysimio prices are read live from our carrier catalog every time this page loads, so the figure here is the figure at checkout. Competitor prices are the US-dollar price shown on each provider's own site, read on the date in the last column and linked to the page we read it from; promotional prices are marked alongside the list price. Price per GB is the plan price divided by its included data — unlimited passes have no per-GB figure and are ranked by total price instead. Full method: how we test, the eSIM Price Index and what an eSIM costs.
- Nomad — checked Aug 15, 2026 — www.nomadesim.com/cambodia-eSIM
- Airalo — checked Aug 15, 2026 — www.airalo.com/cambodia-esim
- Holafly — checked Aug 15, 2026 — esim.holafly.com/esim-cambodia/
Metfone vs Smart vs Cellcard
Cambodia has three real networks. Metfone (Viettel-owned) has the widest rural footprint and is the strongest choice outside the cities — which is why we route through it. Smart is generally the fastest in Phnom Penh and Siem Reap. Cellcard is the third. For a traveller going to Angkor, Phnom Penh and maybe the coast, all three work; Metfone pulls ahead once you are on the roads between them.
Coverage by destination
- Siem Reap — strong 4G across town and the Pub Street area.
- Angkor Archaeological Park — better than most people expect. Angkor Wat, Bayon and Ta Prohm all have usable signal. Weaker at the outlying temples like Beng Mealea and Banteay Srei.
- Phnom Penh — strong throughout, including the riverfront and airport.
- Sihanoukville and Kampot — fine in town.
- Koh Rong and Koh Rong Samloem — patchy and resort-dependent. Some beaches have nothing. Treat island days as semi-offline.
- Mondulkiri and Ratanakiri — usable in the towns, unreliable in the forest.
When to go, and what it means for data
Cambodia's dry season runs roughly November to March, and December–January is the peak. It is also when you will be outdoors all day at the temples, using maps and camera uploads and burning battery — which matters more than data. A power bank is a better investment than a bigger data plan.
How much data do you need?
Two to three GB covers a typical week including Angkor. Five GB is comfortable for two weeks with the coast added. At these prices the honest advice is to buy 5 GB and stop thinking about it — the difference between plan sizes here is a couple of dollars.
Setting it up
- Buy and install on Wi-Fi before you fly.
- Switch the line on when you land at Siem Reap or Phnom Penh and enable Data Roaming for that line only.
- Turn Data Roaming off on your home line.
- Download offline maps for Siem Reap, the Angkor park and Phnom Penh.
- Screenshot your temple pass details and any island transfer bookings.
Frequently asked questions
What is the best eSIM for Cambodia?
Flysimio on Metfone and Cellcard is the strongest value — we came in below Nomad's $15.00 for 5 GB / 30 days in August 2026, against $72.50 for Airalo's cheapest 30-day Cambodia plan, which is unlimited-only. Metfone also has the widest rural coverage of Cambodia's three networks.
Is there mobile signal at Angkor Wat?
Yes, and better than most people expect. Angkor Wat, Bayon and Ta Prohm all have usable 4G. The outlying temples such as Beng Mealea and Banteay Srei are weaker, so download offline maps before a full-day circuit.
Which Cambodian network is best?
Metfone has the widest rural reach and is the best all-round choice for travellers. Smart is usually fastest inside Phnom Penh and Siem Reap. Cellcard is the third option. All three are fine in the main tourist areas.
How much data do I need for Cambodia?
About 2–3 GB for a week including Angkor, or 5 GB for two weeks with the southern coast added. Cambodian data is cheap enough that buying 5 GB and not thinking about it costs only a few dollars more.
Does eSIM work on Koh Rong?
Patchily. Coverage on Koh Rong and Koh Rong Samloem depends heavily on which beach and which resort you are at, and some have nothing at all. Plan island days as semi-offline and sort out transfers in advance.
Sources & further reading
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.