HelloRoam sells prepaid eSIM data plans for Cambodia starting at $3.66 per day. Your e SIM connects to local 4G/5G networks the moment you land. Activate by QR code in under two minutes. Keep your AT&T, T-Mobile, or Verizon number on dual SIM while your e-sim handles data.
- networks
212+- 5G support
4G- activation
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Your eSIM card Cambodia Plan with Full Coverage
The cheapest eSIM for Cambodia starts from $3.66. Local 4G/5G data on top carrier networks in Cambodia. Works on all eSIM compatible phones. Airport SIM counters charge inflated rates and stack long queues at arrivals. An eSIM in Cambodia from HelloRoam beats airport kiosk prices without the queue. Plans start at $3.66 on Metfone and Cellcard 4G networks across the country. Scan a QR code at home and land with data already live on your phone. Every plan is fully prepaid with no contract, no credit check, and no roaming fees.
Cambodia eSIM with fast 4G coverage
HelloRoam offers eSIM plans for Cambodia starting from $3.66. Connect on 4G LTE networks including Smart Axiata, Metfone, and Cellcard. Activate your eSIM by scanning a QR code before you travel.
- Plans start at $3.66 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
- $3.66
- 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 eSIM 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 & checkout online
Select a data plan for your destination and complete checkout.
2Scan the QR code
Scan the QR code on Wi-Fi to install your eSIM. If it says not valid or already added, check your phone's list of lines first.
- 3
Activate in minutes: ready on arrival
Install your eSIM before you fly. Your plan's days start at the eSIM's first connection to a supported network in your destination. When you land, switch the line on, turn on data roaming for that line and pick it for mobile data.
4Manage it all from our mobile app
Track usage, top up data in the app, and manage all your eSIMs in one place.
Trip changed? Don't worry, we've got you!
Plans can change anytime, and that's okay. With HelloRoam, unactivated and unscanned eSIMs qualify for a full refund within 180 days of purchase.
Learn more about our refund policyHelloRoam Cambodia eSIM vs AT&T, T-Mobile and Verizon roaming
When comparing an eSIM vs a travel SIM card for Cambodia, HelloRoam wins on price. It costs less than Verizon TravelPass ($10/day), T-Mobile international add-ons, and AT&T International Day Pass ($12/day). Skip the airport SIM shop and get a prepaid eSIM for Cambodia from $3.66 with a 180-day refund on unactivated eSIMs.
| Feature comparison | HelloRoam | Local provider | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  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 an eSIM Better Than a Cambodia SIM card for Travelers?
Skip the prepaid SIM card Cambodia airport stalls at Phnom Penh and Siem Reap and land with data live. Airport SIM vendors charge $5-15 for Cambodia tourist plans, and the Angkor Wat region kiosks add a surcharge for English-language setup. HelloRoam connects to Metfone and Cellcard 4G from $3.66 with QR activation in two minutes.
HelloRoam activates your plan without the passport photo that a data sim card Cambodia vendor requires at the counter. Local SIM rules in Cambodia mandate ID registration, which means a wait at the desk before you get online. Scan a HelloRoam QR at home and skip that step entirely.
The tourist sim card Cambodia travelers often grab at the airport sells limited data at flat tourist rates. HelloRoam plans run on Metfone and Cellcard networks from Phnom Penh to Siem Reap with flexible data sizes from 1GB to 20GB. Pay by card online and avoid the cash-only counters at the arrivals hall.
Unlike a cheapest eSIM for Cambodia purchased at the border crossing, HelloRoam works the moment your plane lands with no activation lag. Border SIM kiosks between Thailand and Cambodia often run out of stock during peak season and only accept local currency. A HelloRoam eSIM is ready before you leave home.
A Cambodia tourist sim from HelloRoam starts at $3.66 with no roaming charges between Phnom Penh and the temple region. Physical SIM cards from border kiosks expire fast and carry no refund if you leave early. Your HelloRoam plan stays active for the full trip.
Physical SIM card prices based on Phnom Penh International Airport (PNH) and Siem Reap-Angkor Airport (SAI) counter listings. Verified May 2026.
Read the full eSIM vs SIM card comparisonWhy Travelers Choose an e SIM for Cambodia
24/7 live chat support
Need help at 2 AM in Tokyo or midnight in Paris? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. No bots, no wait queue. Mobile data problems don't wait for business hours, and neither do we.
Best Travel eSIM for Cambodia
Get unlimited data at 4G/5G speeds the moment you land in Cambodia. Skip roaming fees from AT&T, T-Mobile, and Verizon. HelloRoam connects you to local carrier networks in minutes, whether you are traveling or working. Wireless connectivity starts before you clear customs.
Keep your AT&T, T-Mobile, or Verizon number
Keep your AT&T, T-Mobile, or Verizon number active for calls and texts. HelloRoam runs as a second eSIM line on any dual SIM compatible phone, so you never miss a call from home. Your cellular coverage for calls stays on your home carrier while HelloRoam handles data abroad.
212+ partner networks worldwide
HelloRoam eSIMs connect to 212+ carrier networks across 185+ countries. Your phone switches to the strongest available 4G/5G signal automatically. Network access is instant, with no manual carrier selection needed.
Data alerts before you run out
HelloRoam alerts you at 80% data usage so you never hit a surprise cap mid-trip. Top up instantly from the app without reinstalling your eSIM or visiting a store. Adding a fresh prepaid data package takes under a minute from your account dashboard.
Local 4G/5G speeds
Your Cambodia e-sim card connects to trusted local 4G/5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls. Internet abroad at local carrier speeds means maps load fast and video calls stay clear.
Regional and global eSIM plans
Heading to multiple countries? HelloRoam regional eSIM plans cover Europe, Asia, the Americas, and 185+ destinations in one purchase. Tourist eSIM or long-stay: choose fixed data or unlimited data plans. One account, no SIM swaps. Digital connectivity follows you across borders on a single prepaid plan.
Free hotspot and data sharing in Cambodia
Share your Cambodia eSIM data with a laptop or tablet using your phone's built-in hotspot. No extra fees, no setup required. Works on all eSIM compatible phones. One data plan covers your whole travel kit, making the most of every gigabyte you buy.
eSIM Prices for Cambodia
The best eSIM for Cambodia at every price point. Compare plans for every trip length.
| Number of days | Price |
|---|---|
| 1 day | $3.66 |
| 3 days | $10.43 |
| 7 days | $22.55 |
| 15 days | $43.92 |
| 22 days | $59.58 |
| 30 days | $74.66 |
Compare eSIM Providers for Cambodia
American travelers rate HelloRoam eSIM for its 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers for Cambodia on the things that matter most.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | 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 |
| $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 e SIM? How eSIM Works in Cambodia
An eSIM card is a digital SIM built directly into your phone. There is no plastic chip and no SIM tray to deal with. Scan a QR code to activate your e SIM in under 2 minutes on any eSIM compatible iPhone or Android. An eSIM for Cambodia works as a prepaid data plan with no airport SIM shop, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight. guide
Mobile connectivity guide for Cambodia
Cambodia has solid 4G LTE coverage in Phnom Penh, Siem Reap, Sihanoukville, and along major tourist routes. Smart Axiata, Metfone, and Cellcard are the top networks serving the country. With a HelloRoam eSIM, you connect on arrival without stopping at a SIM card stall.
- HelloRoam connects to Metfone 4G, Cellcard 4G in Cambodia
- 4G LTE coverage in Phnom Penh, Siem Reap, and Sihanoukville
- Connect on Smart Axiata, Metfone, and Cellcard
- Instant activation via QR code before departure
eSIM Travel Tips for Cambodia
Set up your eSIM before flying to Cambodia
Download your HelloRoam eSIM profile at home before flying to Cambodia. Enable mobile data when you land at Phnom Penh International Airport or Siem Reap-Angkor International Airport. Grab works for rides from the airport. No physical SIM purchase or airport SIM counter stop needed.
Download offline maps for remote temples
The main Angkor complex has good coverage but outer temple sites like Beng Mealea and Koh Ker are more remote. Download offline maps for the Siem Reap area before you head out. Google Maps and Maps.me support full offline region saves.
Manage your data at Angkor Wat and remote temple sites
Angkor Wat, the Bayon, and Ta Prohm all have solid 4G coverage. Outer temple sites like Beng Mealea (about 40km from Siem Reap) and Koh Ker have much weaker signal. Download offline maps for these areas the night before. The HelloRoam app shows your real-time balance so you can manage data on long temple days.
Keep your home SIM active
On a dual SIM phone, keep your home SIM for calls and texts. Set your HelloRoam eSIM as the default data line in Cambodia. You stay reachable on your regular number throughout your trip.
Save emergency numbers before you go
Cambodia's emergency number is 117 for police and 119 for ambulance and fire. Save them before you travel. Emergency calls work on any available network.
Mobile networks in Cambodia: what you need to know
Cambodia's three main carriers are Smart Axiata, Metfone, and Cellcard. Coverage is reliable in Phnom Penh, Siem Reap, and along National Route 6. The remote northeast provinces, border areas, and offshore islands like Koh Rong can have weaker signal. Your HelloRoam eSIM connects automatically to the strongest available network at each location.
- Metfone
- 4G
- Cellcard
- 4G
HelloRoam eSIM vs local SIM vs carrier rates in Cambodia
Here is an honest comparison of your connectivity options for a trip to Cambodia.
| Category | HelloRoam eSIM Recommended | Local SIM card | Your home carrier |
|---|---|---|---|
| Typical cost | From $4.00 total | $1.00–$5.00 total | $10.00–$15.00/day |
| Details | Plans start at $3.66. Buy online, scan a QR code at home, and arrive in Cambodia already connected. No stopping at airport SIM stalls or hotel front desks for data. | Very cheap and widely available in Cambodia, but requires passport registration. You need to buy, register, and set up after landing. Unused data expires at the end of the plan. | Most carriers charge $10 to $25 per day in Cambodia. A 14-day trip can cost $140 to $350 in data fees. |
Prices approximate as of . Actual savings vary.
Best time to visit Cambodia
Cambodia has two main seasons. The dry season from November to April is ideal for travel with low humidity and no rain. The wet season from May to October brings heavy afternoon showers but lush scenery and fewer tourists at Angkor. The peak months of November to February are the busiest, especially around Christmas and New Year. Siem Reap and Angkor Wat are crowded during these months and network demand at tourist sites is highest.
Reviewed by HelloRoam Editorial Team
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.
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Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travelers 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
HelloRoam Cambodia eSIM Questions Answered
Where do travelers buy a tourist sim card Cambodia plan online?
A travel sim Cambodia plan from HelloRoam runs on Metfone and Cellcard 4G networks from $3.66 covering the Angkor Wat temple circuit, Phnom Penh's Royal Palace riverfront, and Kampot's pepper farm roads. Plans range from 1GB to 20GB or unlimited data. The QR code arrives by email within seconds so you skip the Siem Reap airport counter.
Can I activate a travel sim Cambodia plan on my phone?
The cheapest eSIM Cambodia plan from HelloRoam connects to Metfone and Cellcard 4G networks across Siem Reap's temple zone, Battambang's bamboo train route, and Sihanoukville beach islands. Activate by QR in under two minutes on any compatible phone. Tuk-tuk bookings, Grab rides, and Angkor sunrise maps work from your first morning with no roaming charges.
Does a HelloRoam Cambodia plan cover Angkor Wat and the temple sites?
HelloRoam connects to Metfone and Cellcard 4G networks across Siem Reap's Angkor Archaeological Park, Phnom Penh's riverfront, and the Kampot coastal area. You get reliable data for navigation and ticket booking across Cambodia's major tourist zones. Plans start at $3.66.
Is a HelloRoam Cambodia eSIM faster to set up than buying at Phnom Penh Airport?
Airport SIM desks at Phnom Penh International require passport registration and a queue. HelloRoam delivers a QR code by email from $3.66 on Metfone and Cellcard 4G networks with no in-person step. Activate before your flight and arrive in Phnom Penh or Siem Reap already connected.
What is the best eSIM for Cambodia?
HelloRoam is a strong eSIM option for Cambodia, connecting on Smart Axiata, Metfone, and Cellcard networks. Plans start at $3.66 with 4G LTE data. Buy online, scan a QR code, and arrive at Siem Reap or Phnom Penh already connected. No physical SIM needed.
Does a HelloRoam eSIM work in Cambodia?
Yes, HelloRoam eSIM plans work in Cambodia and connect on Smart Axiata, Metfone, and Cellcard. Buy your plan before you leave, scan the QR code, and arrive connected at Angkor Wat and in Phnom Penh.
Which network does HelloRoam use in Cambodia?
HelloRoam eSIM for Cambodia connects on Smart Axiata, Metfone, and Cellcard. Your phone picks the strongest available signal automatically wherever you are in Cambodia.
How do I activate an eSIM for Cambodia?
Buy your plan on helloroam.com, scan the QR code in your phone settings, and turn on mobile data when you land. The setup takes about five minutes at home before your flight to Cambodia.
How much does an eSIM for Cambodia cost?
HelloRoam eSIM plans for Cambodia start at $3.66 per day. This covers Phnom Penh, Siem Reap, and most tourist routes with reliable 4G LTE data.
Does the eSIM work at Angkor Wat?
Yes, the main Angkor Wat complex and nearby temples like Bayon and Ta Prohm have 4G LTE coverage. Outer temples further from Siem Reap have weaker signal. Download offline maps of the Angkor Archaeological Park before you visit.
Is my phone compatible with an eSIM for Cambodia?
Most iPhones from the XS (2018) onward and many recent Android devices support eSIM. Check your phone settings for 'Add eSIM' or 'Add a plan' to confirm your device works before buying.
Does HelloRoam eSIM include calls and texts in Cambodia?
HelloRoam eSIM plans for Cambodia are data-only. Use WhatsApp, FaceTime, or Telegram for calls and messages over your data connection. Emergency calls to 117 or 119 work on any network.
How much data do I need for two weeks in Cambodia?
Two weeks in Cambodia using maps, messaging, social media, and navigation for temple tours and island trips typically uses 3 to 6 GB. Most guesthouses and cafes have Wi-Fi, so a moderate data plan works for most travelers.
Can I use hotspot with my eSIM in Cambodia?
Yes, HelloRoam eSIM plans for Cambodia include hotspot sharing. Share your 4G LTE connection with a travel companion or a laptop during your trip.
Is an eSIM cheaper than roaming in Cambodia?
Yes. Most home carriers charge $3.66 per day in Cambodia. A HelloRoam eSIM plan starts at $3.66 per day total with no additional daily charges.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
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 departure. 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 the eSIM profile, defined in 3GPP TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you are using.
- 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. Unactivated eSIMs qualify for a 180-day refund.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
