🇰🇭 eSIM plans for Cambodia

Starting at $35.04/day*

No data caps
7-days valid
Fast, reliable connection
Skip the roaming bill
QR code emailed instantly

Get your unlimited data

How many days

More days, lower daily rate

How many eSIMs

More eSIMs, bigger discount

Total

—

Get Cambodia eSIM

Install it now or once you're away. Nothing starts counting until you reach your destination and switch the eSIM on.

* The "as low as" figure is the lowest per-day rate, taken from the longest unlimited data plan on sale here.

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Why buy from us?

Here's how Onetel stacks up against other options in Cambodia.

Onetel

Local SIM card

Roaming

Uncapped data plans

Activates instantly

Your number stays the same

No surprise charges

No lock-in

24/7 support

🇰🇭

eSIM costs for Cambodia

Prices shown in USD

7 days of unlimited data in Cambodia costs $245.30 — about $35.04 a day on Cellcard, Smart Axiata or Metfone, with no roaming charge and no SIM to swap. In Cambodia, 5G is live and median mobile download speed is 23.0 Mbps.

Duration	Data	Price	Daily cost
1 day	500 MB	$36.02	$36.02/day
3 days	—	$105.78	$35.26/day
5 days	—	$175.54	$35.11/day
7 days	100 MB	$245.30	$35.04/day
15 days	2 GB	$71.86	$4.79/day
30 days	3 GB	$7.30	$0.24/day

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Which networks you connect to in Cambodia

Your eSIM roams onto Cambodia's own operators. These are the networks and the frequencies they run — check your phone supports them before you travel.

Operator	4G / LTE bands	5G bands	5G
Cellcard	B1, B3, B5	n78	Yes
Smart Axiata	B1, B3, B5	n78	Yes
Metfone	B1, B3	n78	Yes

23.0 Mbps

Median download

6.7 Mbps

Median upload

Source: Ookla Speedtest Global Index, July 2025

Coverage in Cambodia

Coverage is concentrated in urban areas and along major roads; large portions of the Cardamom Mountains, northeastern Mondulkiri and Ratanakiri provinces, and the Tonle Sap lake area have limited or no service. Smart Axiata and Cellcard operate 3G on B1 (2100 MHz), which some older US-market phones lack.

Common Questions

The details worth knowing about your Cambodia eSIM

Coverage is concentrated in urban areas and along major roads. Large parts of the Cardamom Mountains, northeastern Mondulkiri and Ratanakiri provinces, and the Tonle Sap lake area have limited or no service. You should not rely on connectivity in those regions.

Smart Axiata and Cellcard operate 3G on B1 (2100 MHz), which some older US-market phones lack. Your phone may still connect to their 4G networks (B1, B3, B5) or 5G (n78) if supported. Without 3G fallback, coverage gaps may be more noticeable in rural areas.

Your eSIM will connect to one of the three local operators: Cellcard, Smart Axiata, or Metfone. All three offer 4G on bands B1, B3, and B5, and 5G on n78. The specific network depends on signal strength and roaming agreements at your location.

This eSIM is for Cambodia only and does not include coverage in neighbouring countries such as Thailand, Laos, or Vietnam. If you cross the border, you will need a separate eSIM or plan for that country to maintain service.

Local SIM cards in Cambodia often require passport registration. With this eSIM, no local ID or registration is needed. You can install it before you travel and activate it upon arrival without visiting a store or showing documents.