HelloRoam offers eSIM data plans for Cambodia, starting from A$5.20 a day. Your e SIM links up with local 4G/5G networks the moment you land, no roaming fees. Activate by QR code in under two minutes and keep your Telstra, Optus, or Vodafone number for calls. No lock-in contract: one e-sim covers 185+ countries through 212+ carrier networks.
- networks
212+- 5G support
4G- activation
under 2 minutes
Updated
Travel sim Cambodia Plans for Every Trip Length
Cheap eSIM for Cambodia, starting from A$5.20. Local 4G/5G data on trusted carrier networks in Cambodia. Works on all eSIM compatible phones. Your eSIM in Cambodia plan from HelloRoam starts from A$5.20 on Metfone and Cellcard 4G networks. Activate by QR code at home before you fly from Australia. Choose from 1 GB to 20 GB plans to match your trip. No physical SIM needed, no lock-in contract, and your Australian number stays active.
Cambodia eSIM with fast 4G coverage
HelloRoam offers eSIM plans for Cambodia from A$5.20. Connect on 4G networks including Metfone. Activate before your flight with a QR code.
- Plans start at A$5.20 with 4G speeds
- Coverage from Metfone and 1+ other operators
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Cambodia coverage across major cities
- Network
- 4G
- Plans From
- A$5.20
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Cambodia
Follow these steps to set up your eSIM card on iPhone or Android. Works for any e-sim for international travel, no replacement SIM, no store visit.
Set up an eSIM on your iPhone with the HelloRoam app
Set up an eSIM on your Android with the HelloRoam app
- 1
Choose your plan and checkout online
Select a data plan for your destination and complete checkout.
2Scan the QR code
Scan the QR code to install your eSIM straight away.
- 3
Activate in minutes: ready on arrival
Your eSIM installs instantly and activates when you land.
4Manage it all from our app
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No worries, we've got you covered!
Plans can change anytime, and that's fine. With HelloRoam, you can request a refund on any unactivated eSIM within 180 days of purchase.
Learn more about our refund policyHelloRoam Cambodia eSIM vs Telstra, Optus and Vodafone AU roaming
When comparing eSIM vs a travel SIM card for Cambodia, HelloRoam wins on price. It beats Telstra International Day Pass (A$10/day), Optus Travel Pass (A$5/day), and Vodafone AU daily roaming fees. The cheapest eSIM plan starts from A$5.20, with no activation fee and a refund on unactivated eSIMs within 180 days.
| Feature comparison | HelloRoam | Telstra / Optus roaming add-on | Limited data eSIM |
|---|---|---|---|
| Refund on unactivated eSIMs |  Feature available |  Feature not available | Feature not available |
| 24/7 live chat support | Feature available |  Feature available | Feature available |
| $0 activation fees | Feature available | Feature not available | Feature available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature not available | Feature available |
| Premium Cambodia carrier networks | Feature available | Feature not available | Feature not available |
Is a HelloRoam eSIM better than a Cambodia SIM card for Australian travellers?
A SIM card for Cambodia from a Smart or Cellcard outlet at Phnom Penh or Siem Reap Airport requires a passport and a counter stop before you can use your phone. A HelloRoam eSIM installs by QR code at home in Australia, runs on Metfone and Cellcard 4G networks from A$5.20, and is live from the moment you clear customs.
A prepaid SIM card Cambodia from a kiosk near arrivals is tied to a single local network. HelloRoam connects you to Metfone and Cellcard 4G for coverage across Phnom Penh, Siem Reap, Sihanoukville, and the Cardamom highlands from one plan starting at A$5.20.
A data sim card Cambodia from a street vendor may not include tethering. HelloRoam gives you full data sharing for your laptop and tablet on the same plan from A$5.20 with no hidden restrictions.
A tourist sim card Cambodia from the arrivals hall often sells out during peak Angkor season. HelloRoam guarantees your plan is ready before you land. Purchase online, scan the QR at home, and arrive sorted.
Why Aussie Travellers Pick an e-sim for Cambodia
24/7 Round-the-clock chat support
Need a hand at 2am before a Bali flight? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. Whether you're troubleshooting mobile data mid-trip or need a top-up on your prepaid data package, help arrives fast.
The best eSIM for Cambodia travel
Connect to local 4G/5G networks the moment you land in Cambodia, at a fraction of what Telstra, Optus, or Vodafone AU charge for international roaming. Plans start from A$5.20 with no lock-in contract and no activation fees. It's the most affordable way to get internet abroad without a Telstra Day Pass eating into your travel budget.
Keep your Telstra, Optus, or Vodafone AU number
Keep your Telstra, Optus, or Vodafone AU number active for calls and texts. HelloRoam handles your data through a second eSIM line on any dual SIM compatible phone. Your wireless connectivity for data runs separately, so friends and family back home can still reach your usual number.
212+ partner networks worldwide
HelloRoam connects to 212+ carrier networks across 185+ countries. Fixed data and unlimited data plans available. Your phone switches to the strongest available 4G/5G signal automatically. With cellular coverage this broad, you get reliable internet abroad whether you're in a city centre or off the beaten track.
Usage alerts before you run out
HelloRoam alerts you at 80% usage so you're never caught short mid-trip. Top up instantly from the app without reinstalling your eSIM. Adding more mobile data takes under a minute, so your prepaid data package keeps up with your trip rather than the other way round.
Fast local network speeds
Connect on trusted local 4G/5G networks in Cambodia. HelloRoam picks the strongest signal for calls, navigation, and streaming. Local network speeds mean you get the same fast mobile data as residents use every day.
Global and regional plans
Planning a multi-country trip? HelloRoam regional eSIMs cover Asia Pacific, Europe, and 185+ destinations in one purchase. eSIMs for Europe span 34+ countries. Japan, Bali, Thailand, and NZ all sorted. One prepaid data package covers your whole itinerary, with no SIM card to swap at each border.
Hotspot and data sharing in Cambodia
Share your Cambodia eSIM data with a laptop or tablet using your phone's hotspot. No extra fees, no setup. Works on all eSIM compatible phones. Your wireless connectivity extends to every device in the group, so the whole crew stays online from a single prepaid data package.
Best eSIM for Cambodia: Prices and Plans
HelloRoam, the best eSIM Cambodia. Compare plans and save versus Telstra, Optus, and Vodafone roaming.
| Number of days | Price (AUD) |
|---|---|
| 1 day | A$5.20 |
| 3 days | A$14.81 |
| 7 days | A$32.01 |
| 15 days | A$62.35 |
| 22 days | A$84.58 |
| 30 days | A$105.99 |
HelloRoam vs Other eSIM Providers for Cambodia
For Cambodia, HelloRoam offers a refund on unactivated eSIMs within 180 days, A$0 activation fees, and 24/7 live chat support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the features that matter most.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| Refund on unactivated eSIMs | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| 24/7 live chat support | Feature available | Feature available | Feature available | Feature not available | Feature available | Feature available |
| A$0 activation fees | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Premium Cambodia carrier networks | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| Own branded carrier identity (SPN) | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature available |
What Is an eSIM Card? How e SIM Works for Cambodia Travel
An eSIM card is a digital SIM built directly into your phone. No plastic chip and no SIM tray to deal with. Scan a QR code to activate your e SIM in under two minutes on any eSIM compatible iPhone or Android. It works as a prepaid mobile data plan for Cambodia travel with no airport SIM shop queue, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight from Sydney Airport (SYD), Melbourne Airport (MEL), or Brisbane Airport (BNE). guide
Cambodia Mobile Connectivity Guide for travellers
Sorting your overseas data before you leave is the smart move. HelloRoam sends a QR code straight to your inbox after you buy. Get it set up at home before your flight, and you touch down in Cambodia ready to go.
Cambodia is covered through Metfone on 4G. Phnom Penh and Siem Reap (Angkor Wat) have solid 4G. Sihanoukville and Koh Rong island have decent coverage. Remote Cardamom Mountains have limited signal. Check Smartraveller for the latest travel advice for this destination.
185+ means your HelloRoam plan works from the moment you arrive in Cambodia.
- HelloRoam connects to Metfone 4G, Cellcard 4G in Cambodia
- 212+ Metfone across Cambodia on 4G
- Coverage across main cities and tourist spots, including Phnom Penh International (PNH)
- Set up at home before you leave and you are connected on arrival
- GSMA Intelligence Cambodia Report ();
- Speedtest.net Market Report ()
eSIM Travel Tips for Cambodia
Get your eSIM set up before you leave Australia
Purchase your plan, scan the QR code on your home Wi-Fi, and install it before your flight. When you touch down in Cambodia, your phone picks up Metfone straight away. No airport kiosk, no registration queue.
Cache your maps before you head off
Download Cambodia in Google Maps before you leave so your GPS keeps working when you are off the beaten track. Phnom Penh and Siem Reap (Angkor Wat) have solid 4G. Sihanoukville and Koh Rong island have decent coverage. Remote Cardamom Mountains have limited signal. Your location loads from GPS hardware even without data. Maps.me is a good backup option for remote areas.
Hit the ground running at the airport
Phnom Penh International (PNH) is where you land. With your HelloRoam eSIM active before you board, your phone picks up Metfone in Cambodia as soon as you exit the aircraft. Book your transfer, check your accommodation address, and stay in touch with family back home without airport Wi-Fi hassles.
Save key numbers before you head off
Add local emergency numbers for Cambodia to your phone before you leave. Note the police and ambulance numbers. Keep your accommodation address saved so you can show taxi drivers without needing a data connection.
Keep your Aussie number active while using local data
Most modern phones support dual SIM. Keep your Australian SIM active for calls and texts from home. Set the HelloRoam eSIM as your data line. You receive calls on your Aussie number without paying international rates while your eSIM handles data in Cambodia.
Get connected in Cambodia from A$5.20
HelloRoam plans for Cambodia start at A$5.20. Purchase online before your trip, scan the QR code at home, and you touch down already connected. No airport SIM hunt, no registration queue. Just local partner network data working from the moment you arrive.
Cambodia's Mobile Networks in Detail
Cambodia has several mobile operators but three dominate the market: Smart Axiata, Cellcard (CamGSM), and Metfone (a Vietnam Telecom subsidiary). Smart Axiata runs the strongest 4G network and was among the first to launch 5G trials in Phnom Penh. Cellcard provides solid 4G in major cities. Metfone has wider rural coverage due to its backing from Viettel.
Phnom Penh has strong 4G coverage across the central riverside area, Russian Market, the National Museum, and all main districts. Siem Reap has solid 4G in the town centre, Pub Street, and the routes to Angkor Wat. The Angkor Archaeological Park has 4G coverage at the main temples including Angkor Wat, Bayon, Ta Prohm, and the outer temples along the Grand Circuit.
The coast has good coverage in Sihanoukville town but weaker signal on outlying beaches and islands. Koh Rong has 4G in the main village and some resort areas, but signal is inconsistent across the island. Koh Rong Sanloem has very limited coverage. Remote provinces in the Cardamom Mountains, Ratanakiri, and Mondulkiri have patchy 3G or no signal. Download offline maps for any rural or highland travel. Australian travellers should confirm their handset is unlocked and supports the local network bands.
- Metfone
- 4G
- Cellcard
- 4G
HelloRoam vs Local SIM vs Carrier Roaming in Cambodia
HelloRoam eSIM plans for Cambodia start at A$5.20 per day and activate before you leave home. Local SIM cards from Smart Axiata or Cellcard cost 1 to 5 AUD at airport kiosks in Phnom Penh and Siem Reap. Registration with a passport is required. Data bundles are affordable locally, making Cambodia one of the more budget-friendly destinations for mobile data. Carrier roaming from US or European providers typically costs AUD 10 to 15 per day.
| Category | eSIM Recommended | Local SIM | Roaming |
|---|---|---|---|
| Typical cost | From A$5.68 total | A$1.42–A$7.10 total | A$14.20–A$21.29/day |
| Details |
Prices approximate as of . Actual savings vary.
Best Time to Visit Cambodia
November to April is the dry season. December to February is the coolest and most comfortable. Angkor Wat is best visited early morning throughout the year.
Network demand is higher in peak tourist periods. A HelloRoam eSIM means you are not competing for crowded public Wi-Fi at popular spots.
Reviewed by HelloRoam Editorial Team
- Wet
- MayJunJulAugSeptOct
- Dry
- NovDecJanFebMarApr
Reviewed by HelloRoam Editorial Team
Top Destinations in Cambodia
Esim Khan Chamkar Mon
Stay connected in Chamkar Mon with HelloRoam eSIM data plans that work across Cambodia.
Metfone 4G covers Chamkar Mon district in Phnom Penh; the BKK and Toul Tom Poung areas have strong signal.
Khan 7 Makara
HelloRoam gives you instant data access in Khan 7 Makara, Cambodia with no extra fees.
Metfone 4G covers 7 Makara district in central Phnom Penh; the riverside and central market are well covered.
Khan Dun Penh
HelloRoam makes it easy to stay online in Doun Penh with data plans for Cambodia.
Metfone 4G covers Doun Penh, Phnom Penh's historic core; the Royal Palace and river promenade have good signal.
Phnom Penh
HelloRoam gives you instant data access in Phnom Penh, Cambodia with no extra fees.
Metfone 4G covers Phnom Penh well; Phnom Penh International Airport and the Mekong riverside are well connected.
Showing slide 1 of 4
Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer
Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
Updated
FAQs About eSIM in Cambodia
How much does a Cambodia eSIM cost for Australians visiting Angkor Wat?
The cheapest eSIM Cambodia from HelloRoam starts from A$5.20 on Metfone and Cellcard 4G networks. Scan the QR code at home and data is live when you land at Phnom Penh or Siem Reap. No physical SIM card required, no roaming charges.
Which Cambodia e SIM plan covers Angkor Wat, the coast, and island beaches?
An eSIM in Cambodia plan on HelloRoam runs on Metfone and Cellcard 4G networks from A$5.20. Scan the QR code at home and arrive connected. Plans cover multiple data sizes from 1 GB to 20 GB. No contract required and a 180-day refund guarantee on unactivated eSIMs covers every order.
Does a Cambodia eSIM from HelloRoam work on both iPhones and Android phones from Australia?
A Cambodia eSIM from HelloRoam works on any unlocked, eSIM-ready iPhone or Android handset. iPhones from the XS onwards and modern Samsung, Google Pixel, and OPPO devices all support eSIM. Scan the QR code at home before your flight from Australia and arrive at Phnom Penh or Siem Reap airports with Metfone and Cellcard 4G data running from the start.
How long does a Cambodia eSIM data plan last and can I extend it mid-trip?
HelloRoam Cambodia eSIM plans come in set data sizes from 1 GB to 20 GB, with validity to match your trip length. If you run low mid-trip, you can purchase a new HelloRoam plan and install it instantly by QR code. Plans run on Metfone and Cellcard 4G networks from A$5.20, no contract, and a 180-day refund covers any unactivated plan.
What is the best eSIM for Cambodia?
HelloRoam is a great eSIM choice for Australians visiting Cambodia. Plans connect on Metfone from AUA$5.20 with 4G data. Buy before your flight, scan the QR code at home, and arrive in Cambodia already connected.
Can I use an eSIM in Cambodia?
HelloRoam eSIM gets you online in Cambodia on Smart Axiata and Cellcard's 4G networks. Phnom Penh, Siem Reap, and main towns have solid coverage. Remote highlands, islands, and border provinces have weaker signal. Activate before departure so data is ready on arrival. Set it up at home before you leave Australia.
Which network does HelloRoam use in Cambodia?
HelloRoam connects to Smart Axiata, Cellcard, and other partner networks in Cambodia. Smart Axiata has the strongest 4G network and the widest urban and tourist-area coverage across the country.
Is there 4G in Cambodia?
Yes, 4G LTE covers Phnom Penh, Siem Reap, Sihanoukville, Battambang, and all main provincial cities. Rural highland areas in Ratanakiri and the Cardamom Mountains use 3G or have no signal.
Can I use an eSIM at Angkor Wat?
HelloRoam eSIM gets you online at the Angkor Archaeological Park on 4G networks. Angkor Wat, the Bayon, Ta Prohm, and the main temples along both circuits have solid coverage. You can navigate between temples using Google Maps, share photos, and use audio guide apps throughout your visit.
Can I use an eSIM in Siem Reap?
HelloRoam eSIM gets you online in Siem Reap on strong 4G coverage. The town centre, Pub Street, Old Market, and the roads to Angkor Wat all have reliable signal. Siem Reap is one of the best-connected tourist cities in Cambodia.
Can I use an eSIM in Phnom Penh?
HelloRoam eSIM gets you online in Phnom Penh on excellent 4G coverage from Smart Axiata. The riverside area, Russian Market, Central Market, Tuol Sleng Museum, and all main districts have strong signal. Smart has launched 5G trials in the capital.
Can I use an eSIM in Sihanoukville?
HelloRoam eSIM gets you online in Sihanoukville town on 4G networks. Outlying beach areas have variable signal. The main town streets and some resort beaches have usable 4G. Download offline maps of the coast before exploring outer beaches.
Can I use an eSIM on Koh Rong island?
Koh Rong has 4G in the main village (Koh Tuch) and some resort areas. Coverage is inconsistent across the island. Koh Rong Sanloem has very limited 3G coverage. Download offline maps, ferry schedules, and contact information before taking the boat from Sihanoukville.
Can I use an eSIM in Kampot or Kep?
HelloRoam eSIM gets you online in Kampot and Kep on 4G networks. Both coastal towns have good coverage. The Bokor National Park highland road above Kampot has weaker signal in cloud forest sections. Download an offline map before driving the Bokor circuit.
How much does a SIM card cost in Cambodia?
A local SIM card in Cambodia costs AUD 1 to 5 with a data bundle at airport kiosks or street shops. Passport registration is required. A HelloRoam eSIM activates before your flight and skips in-country registration entirely. Set it up at home before you leave Australia.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before buying.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Cambodia. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before you leave. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- The PNN is the network-name field in your eSIM profile, defined in the mobile standard 3GPP TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you're on.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. You can get a refund on unactivated eSIMs within 180 days.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
