Best eSIM for Cambodia 2026: 5 Providers Priced
Cambodia eSIM prices checked 27 Oct 2026: ONE eSIM is cheapest at 3 of 5 sizes from 1 to 20 GB, from $2.48 for 1 GB.
Short answer: ONE eSIM has the cheapest 1 GB eSIM for Cambodia at $2.48 for 7 days; the next cheapest is Airalo at $4.00. Prices checked 27 October 2026 across ONE eSIM, Airalo, Holafly, Saily and Nomad; the full table is below.
Cambodia is Angkor: most visitors land at Siem Reap for three days among the temples, then Phnom Penh for the palace and the history, and the islands off Sihanoukville or the river town of Kampot after that. Data matters for Grab and PassApp tuk-tuks, for the Angkor pass that is now bought online and for the maps that make sense of the temple circuits. Cambodian SIMs are cheap and sold everywhere, but an eSIM is live before you reach the visa desk. On 27 October 2026 we checked Cambodia eSIM prices across ONE eSIM, Airalo, Holafly, Saily and Nomad, lining up the cheapest plan at or above each size so the comparison is like for like.
Quick answer: Cambodia eSIM prices by size
- 1 GB: ONE eSIM at $2.48 (7 days); next cheapest is Airalo at $4.00 (3 days).
- 3 GB: ONE eSIM at $6.60 (15 days); next cheapest is Airalo at $8.50 (3 days).
- 5 GB: ONE eSIM at $11.00 (30 days); next cheapest is Airalo at $12.00 (7 days).
- 10 GB: Airalo is cheapest at $19.50 (7 days); ONE eSIM is $20.08 (30 days). Best value: 4.3× the days of Airalo's plan for $0.58 more.
- 20 GB: Airalo is cheapest at $30.50 (15 days); ONE eSIM is $41.25 (30 days). Best for longer trips: one plan lasts 30 days; Airalo's lasts 15, so a trip longer than that needs two of them ($61.00).
Cambodia eSIM prices compared (1 GB to 20 GB)
| Data | ONE eSIM Our price | Airalo | Holafly | Saily | Nomad |
|---|---|---|---|---|---|
| 1 GB | $2.48 (7 days) Cheapest, saves $1.52 | $4.00 (3 days) | – | $5.99 (7 days) | $6.00 (7 days) |
| 3 GB | $6.60 (15 days) Cheapest, saves $1.90 | $8.50 (3 days) | – | $10.99 (30 days) | $12.00 (30 days) |
| 5 GB | $11.00 (30 days) Cheapest, saves $1.00 | $12.00 (7 days) | – | $14.99 (30 days) | $15.00 (30 days) |
| 10 GB | $20.08 (30 days) Best value: 4.3× the days for $0.58 more | $19.50 (7 days) Cheapest | – | $23.99 (30 days) | $24.00 (30 days) |
| 20 GB | $41.25 (30 days) Best for longer trips: one plan for 30 days | $30.50 (15 days) Cheapest | – | – | $36.00 (45 days) |
Holafly sells only unlimited plans for Cambodia, so it has no price in the GB rows; its 7-day plan is in the week table below.
A week of unlimited data in Cambodia
| Provider | 7 days | What you get |
|---|---|---|
| ONE eSIM | $17.50 | 1 GB a day at full speed, then 512 Kbps until the next day (7 × $2.50) |
| Airalo | $27.00 | 3 GB a day at full speed, then 1 Mbps (fair use) |
| Holafly | $27.90 | No daily cap; fair use may slow very heavy use |
| Saily | – | No 7-day unlimited plan |
| Nomad | – | No 7-day unlimited plan |
For a week, ONE eSIM's 1 GB a day plan is the cheapest way to stay online all day at $17.50. The cheapest of the others is Airalo at $27.00, which gives more full-speed data a day; compare by how much you use a day, not by the word unlimited.
Which networks power Cambodia eSIMs
In Cambodia, ONE eSIM plans run on Cellcard and Metfone, both listed with 4G. Every plan names its network and generation before you pay, so you can pick the operator you want. Coverage follows each carrier's own build, so expect the strongest signal in the cities and along the main roads and rail lines, and check the plan's network if you are heading somewhere remote.
Which eSIM should you choose for Cambodia?
- Short trip, light use (up to 3 GB): ONE eSIM's 3 GB plan at $6.60 (15 days), the cheapest at that size.
- Two weeks or more (5 to 10 GB): Airalo at $19.50 (7 days) is the cheapest at 10 GB; ONE eSIM is the best value (4.3× the days for $0.58 more).
- Heavy use (20 GB): Airalo at $30.50 (15 days) is the cheapest at 20 GB; ONE eSIM is best for longer trips (one plan for 30 days).
- Streaming or video calls every day: compare the unlimited plans above by how much full-speed data each gives a day.
Getting your Cambodia eSIM set up
- Confirm your phone supports eSIM and is carrier-unlocked before you buy.
- Install the eSIM over home or airport Wi-Fi before you fly; the QR code or install link needs a working connection to download.
- Land in Siem Reap or Phnom Penh, switch on the eSIM line and enable data roaming, then check for a signal from Cellcard and Metfone before you head for the taxi rank or the train.
Cambodia eSIM FAQ
- Does a Cambodia eSIM work at the Angkor temples? Yes. The main circuit, Angkor Wat, Bayon and Ta Prohm, is covered on Cellcard and Metfone; the outlying temples such as Beng Mealea and Koh Ker thin out, so download the map before the drive.
- Will the eSIM work on Koh Rong and the islands? On Koh Rong and Koh Rong Sanloem the signal is patchy and depends on the beach; the guesthouses have Wi-Fi. In Kampot, Kep and Sihanoukville it works as in any town.
- Can I keep my home number active alongside a Cambodia eSIM? Yes. Most modern phones run two lines, so your home number stays available for calls and texts while the eSIM carries the data.
- Which networks does a Cambodia eSIM connect to? ONE eSIM's plans use Cellcard 4G, Metfone 4G; the other providers in this comparison may use different local partners.
- How much data do I need for a week in Cambodia? For maps, messaging and photos, 3 GB is enough for most people; add a bigger plan or the daily unlimited option if you stream or work on video calls.
How we check prices
We read each provider's public Cambodia page on 27 October 2026 and took its cheapest plan at or above each size, in US dollars before any coupon, with the validity in brackets; ONE eSIM prices are our live list prices on the same day. Prices move, so we re-check every month and keep the date on the page and in the short answer. If a number is out of date, write to support@oneesim.app and we will correct it.
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