Best travel eSIM Cambodia: 12 plans that beat $18/day roaming
Updated September 14, 2026 · Cellulo Team
Land in Cambodia without a plan and your Canadian carrier starts billing $18 per day. Stay a week and that becomes $126 for one phone, or $252 for two people, before you've even opened Google Maps in Phnom Penh.
The best travel eSIM Cambodia option is usually whatever covers your trip length without pushing you into carrier roaming math that makes no sense. On Cellulo, Cambodia eSIM plans start at $6 CAD for 7 days with 1GB, while even a short 5-day roaming bill from Rogers, Bell, or Telus would cost $90.
All of these are data-only eSIMs, so they do not include local calls or SMS. For most travellers, that is fine. You need data for maps, rideshare, WhatsApp, FaceTime, booking confirmations, banking apps, and the random hotel address lookup when your driver asks where you're going.
Best travel eSIM Cambodia plans compared
If you want internet the moment you land, install your eSIM before you leave Canada while you're still on Wi-Fi. Once you arrive in Cambodia, the plan activates automatically on arrival and connects to local networks. That means no airport SIM kiosk, no bad terminal Wi-Fi, and no standing outside trying to load Grab or your hotel email.
| Data | Duration | Price (CAD) | Get Plan | Best For |
|---|---|---|---|---|
| Unlimited data | 3 days | $18 | Get Plan | Weekend city break |
| Unlimited data | 5 days | $29 | Get Plan | Short getaway |
| 1 GB | 7 days | $6 | Get Plan | Light traveller |
| Unlimited data | 7 days | $38 | Get Plan | ⭐ Most Popular — Week-long trip |
| Unlimited data | 10 days | $49 | Get Plan | Active vacation |
| 2 GB | 15 days | $10 | Get Plan | Budget two-week trip |
| Unlimited data | 15 days | $69 | Get Plan | Heavy streaming user |
| 3 GB | 30 days | $13 | Get Plan | Long stay with light use |
| 5 GB | 30 days | $19 | Get Plan | Remote worker backup |
| 10 GB | 30 days | $30 | Get Plan | Business traveller |
| 20 GB | 30 days | $45 | Get Plan | Content creator |
| Unlimited data | 30 days | $101 | Get Plan | Digital nomad |
The standout for most people is the 7-day unlimited plan at $38 CAD. The roaming comparison is brutal: $18/day x 7 days = $126 through a Canadian carrier, versus $38 for the whole trip on Cellulo. Even the 10-day unlimited plan at $49 is cheaper than three days of carrier roaming, which would already cost $54.
How much data do you actually need in Cambodia?
A light traveller who mainly checks maps, messages on WhatsApp, and pulls up restaurant reviews can get by on 1GB or 2GB. Those low-cost plans make sense if you expect to spend most of your time on hotel or cafe Wi-Fi, though hotel Wi-Fi in Cambodia can be inconsistent and is not where you want to handle banking, work logins, or anything sensitive.
Most travellers are better off with more headroom. Navigation matters more here than people expect, especially if you're moving between the airport, hotels, temples, bus stations, and smaller streets where you do not want to guess. Rideshare and transport apps also need a live connection. If you land in Phnom Penh or Siem Reap without data, you're stuck hunting for Wi-Fi before you can book a ride or message your accommodation.
Unlimited plans are the safer pick if you're sharing photos, taking video calls home, uploading content, or working during the trip. If you're staying a month, the 10GB and 20GB options are the value sweet spot for many travellers, while the 30-day unlimited plan suits people who will treat Cambodia like a working base rather than a vacation stop.
How to avoid roaming charges in Cambodia
The setup matters as much as the plan. Install the eSIM before you leave home because installation requires Wi-Fi. Then, before landing in Cambodia, turn your Canadian line off completely in your phone's cellular settings. Do not just switch off data roaming. If the Canadian line stays active, incoming background activity can still trigger roaming charges.
If you need a one-time password or 2FA code from your Canadian number, turn that line on briefly, receive the text, then turn it off again. Do not leave it running.
Do not use Airplane Mode as your workaround. Airplane Mode disables the eSIM too. The right move is to keep the phone active and switch off the Canadian line specifically while using the Cambodia eSIM for data.
Is a Cambodia eSIM better than roaming or buying a local SIM?
For most Canadians, yes. Roaming is the worst-value option by a wide margin. A local SIM can be cheap, but it costs time after arrival and usually means dealing with kiosks, setup, and payment when all you really want is directions, a ride, and access to your bookings.
A Cambodia eSIM is simpler because it is ready before departure and activates automatically on arrival. The trade-off is that these plans are data-only, so if you need a traditional local number for calls or SMS, a local SIM may still matter. Most travellers will not miss that because messaging apps handle nearly everything.
Coverage depends on the local networks the eSIM connects to in Cambodia. In major tourist areas and cities, that is usually what matters most. If you're heading into rural areas or remote islands, expect coverage to be less consistent than in Phnom Penh or Siem Reap.
If you want to stay connected in Cambodia without handing your carrier $18 a day, start with Cellulo's Cambodia eSIM plans and pick the one that matches your trip length and data use.