eSIM for Cambodia from $3.66

HelloRoam is a global eSIM provider offering instant mobile data in 185+ countries. Buy prepaid travel eSIM plans with no extra fees, no contracts, and instant activation on any eSIM-compatible device.

Cambodia eSIM with instant activation - international travel data plans - no extra fees - 5G mobile network

Cambodia eSIM card data plans for international travel

Package details

The cheapest eSIM for Cambodia starts from $3.66. Local 4G LTE and 5G data on top carrier networks in Cambodia. Works on all eSIM compatible phones.

Start your Cambodia trip connected from the moment you land. HelloRoam prepaid e-sim card activates via QR code in under 2 minutes on any eSIM compatible phone. Plans start from $3.66, well below Verizon TravelPass ($10/day), T-Mobile international add-ons, and AT&T International Day Pass. Skip the airport SIM shop and skip the carrier contract. HelloRoam connects to the strongest local 4G LTE or 5G network automatically, whether you're in a city or a rural area. One account covers 185+ countries through 203+ carrier networks.

HelloRoam: the best eSIM for Cambodia. Plans from $3.66, set up before your flight, no store visit, no SIM swap. Keep your number active on dual SIM. Works on any e-sim compatible iPhone or Android.

Unlimited Data

4GMetfone

Choose number of eSIMs

1 eSIM

How long will you be away?

Choose durationHow many days?

7 Days

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Save 8%

7 Days

Save 8%

eSIMs/Travelers

Up to 5G support

4GMetfone

Choose number of eSIMs

1 eSIM

Choose number of eSIMsHow many travellers

1 eSIM

TotalFrom $3.66USD

Activate instantly

Install your eSIM before or during your trip. Your plan starts when your device connects to a local network at your destination, and auto-activates after 120 days. User guide

Apple App Store

Rated 5/5

Secure payment guaranteed

eSIM - 1

$0.00

eSIM - 1

$0.00

An eSIM for Cambodia from HelloRoam starts at $3.66 per day across 203+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Keep your AT&T, T-Mobile, or Verizon number active.

203+ networks
4G
under 2 minutes activation

UpdatedApril 2026

Cambodia eSIM with fast 4G coverage

HelloRoam offers eSIM plans for Cambodia starting from $4.00. Connect on 4G LTE networks including Smart Axiata, Metfone, and Cellcard. Activate your eSIM by scanning a QR code before you travel. 185+.

Plans start at $3.66 with 4G speeds
Coverage from Metfone
Instant activation in under 5 minutes
180-day money-back guarantee
Cambodia coverage across major cities

How to use HelloRoam

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

iPhone settings screen showing cellular options

10GB

Most travelers choose 🔥

Starting from

Choose your plan & checkout online

Select a data plan for your destination and complete checkout.

Scan the QR code

Scan the QR code to install your eSIM instantly.

Installing...

Activate in minutes: ready on arrival

Your eSIM installs instantly and activates when you land.

Manage it all from our mobile app

Track usage, top up data, and manage all your eSIMs in one place.

10GB

Most travelers choose 🔥

Starting from

Choose your plan & checkout online

Select a data plan for your destination and complete checkout.

Scan the QR code

Scan the QR code to install your eSIM instantly.

Installing...

Activate in minutes: ready on arrival

Your eSIM installs instantly and activates when you land.

Manage it all from our mobile app

Track usage, top up data, and manage all your eSIMs in one place.

10GB

Most travelers choose 🔥

Starting from

Choose your plan & checkout online

Select a data plan for your destination and complete checkout.

Scan the QR code

Scan the QR code to install your eSIM instantly.

Installing...

Activate in minutes: ready on arrival

Your eSIM installs instantly and activates when you land.

Manage it all from our mobile app

Track usage, top up data, and manage all your eSIMs in one place.

10GB

Most travelers choose 🔥

Starting from

Choose your plan & checkout online

Select a data plan for your destination and complete checkout.

Scan the QR code

Scan the QR code to install your eSIM instantly.

Installing...

Activate in minutes: ready on arrival

Your eSIM installs instantly and activates when you land.

Manage it all from our mobile app

Track usage, top up data, 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, you can easily request a refund for your eSIM within 180 days of purchase.

Learn more about our refund policy

Cambodia eSIM vs AT&T, T-Mobile, and Verizon Roaming

When comparing eSIM vs a travel SIM card for Cambodia, HelloRoam wins on price. It beats Verizon TravelPass ($10/day), T-Mobile international add-ons, and AT&T International Day Pass fees. Skip the airport SIM shop and get a better international data plan from $3.66 with a 180-day refund guarantee.

Feature		Local provider	Limited data eSIM
180-day refund policy
24/7 live chat support
$0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium Cambodia carrier networks

Why Travelers Choose HelloRoam 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 5 minutes. No bots, no wait queue.

Activate your e-sim in under 2 minutes

Buy your plan, scan the QR code, and you're connected the moment you land. No store visit, no SIM swap, no paperwork. Works on any eSIM compatible phone in under 2 minutes.

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.

203+ local carrier networks

HelloRoam eSIMs connect to 203+ carrier networks across 185+ countries. Your phone switches to the strongest available 4G LTE or 5G signal automatically.

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.

Local 4G LTE and 5G speeds

Your Cambodia e-sim card connects to trusted local 4G LTE and 5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls.

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.

Free hotspot and data sharing

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.

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 5 minutes. No bots, no wait queue.

Activate your e-sim in under 2 minutes

Buy your plan, scan the QR code, and you're connected the moment you land. No store visit, no SIM swap, no paperwork. Works on any eSIM compatible phone in under 2 minutes.

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.

203+ local carrier networks

HelloRoam eSIMs connect to 203+ carrier networks across 185+ countries. Your phone switches to the strongest available 4G LTE or 5G signal automatically.

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.

Local 4G LTE and 5G speeds

Your Cambodia e-sim card connects to trusted local 4G LTE and 5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls.

Regional and global eSIM plans

Free hotspot and data sharing

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.

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. It works as a prepaid data plan for Cambodia travel 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

Unlimited Data

Up to 5G support

Data sharing

Learn more about eSIM

15.56 GB

Out of 30 GB left

10GB

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. 185+ keeps you online across Angkor Wat, the capital, and the coast.

Get your eSIM

HelloRoam connects to Metfone 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 you leave home
Download your HelloRoam eSIM profile at home before flying to Cambodia. Enable mobile data when you land at Phnom Penh International or Siem Reap International Airport and you are connected immediately. No SIM card stall visit required.
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.
Monitor your data usage
The HelloRoam app shows your real-time data balance. You get alerts at 80% and 95% usage. Add more data inside the app without reinstalling your eSIM if you need more during island hopping or multi-day temple tours.
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.

Get your eSIM

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.

4G
4G coverage
Metfone4G

HelloRoam eSIM vs local SIM vs carrier rates in Cambodia

Here is an honest comparison of your connectivity options for a trip to Cambodia.

Recommended

Typical cost

From $4.00 total

Details

Plans start at $4.00. 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.

Local SIM card

Typical cost

$1.00–$5.00 total

Details

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.

Your home carrier

Typical cost

$10.00–$15.00/day

Details

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 April 2026. 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.

Sean Mitchell

Top Destinations in Cambodia

HelloRoam travel eSIM providing mobile data coverage in Chamkar Mon across 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.

HelloRoam mobile data plan for visiting Doun Penh Cambodia with reliable eSIM service

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.

Check Device Compatibility Data Usage Calculator

What Our Customers Say Join thousands of happy travelers

Apple App Store

Rated 5/5

4.8Rating

"Used HelloRoam on my trip to Tokyo. Had data the moment I landed at Narita. Way better than the AT&T international plan I was paying for."

Sarah M.

4.8Rating

"Saved a fortune vs Verizon TravelPass in Europe. Connected in Paris, Rome, and Barcelona without a single roaming charge."

James K.

"Set up my eSIM at LAX before boarding. By the time I landed in London, I had 5G data ready. No SIM swap needed."

4.8Rating

"HelloRoam covered 5 countries on my Southeast Asia trip. Cheaper than one day of T-Mobile international roaming."

David L.

4.8Rating

"The QR code setup took 2 minutes. Used it for work calls and navigation in Mexico City. Crystal clear connection."

Maria C.

4.8Rating

"180-day refund policy sold me. Ended up using every megabyte in Thailand. Will buy again for my next trip."

Michael T.

4.8Rating

"Used HelloRoam on my trip to Tokyo. Had data the moment I landed at Narita. Way better than the AT&T international plan I was paying for."

Sarah M.

"Set up my eSIM at LAX before boarding. By the time I landed in London, I had 5G data ready. No SIM swap needed."

4.8Rating

"HelloRoam covered 5 countries on my Southeast Asia trip. Cheaper than one day of T-Mobile international roaming."

David L.

4.8Rating

"The QR code setup took 2 minutes. Used it for work calls and navigation in Mexico City. Crystal clear connection."

Maria C.

4.8Rating

"180-day refund policy sold me. Ended up using every megabyte in Thailand. Will buy again for my next trip."

Michael T.

Prices verified: March 27, 2026

Cambodia eSIM Questions Answered

HelloRoam is the top-rated e SIM for Americans flying to Cambodia. It connects to 203+ carrier networks across 185+ countries, with plans from $3.66 in USD. You activate via QR code in under 2 minutes before leaving JFK, LAX, or any US airport. Your AT&T, T-Mobile, or Verizon number stays active through dual SIM while HelloRoam handles data abroad. You get local 4G LTE and 5G speeds, a 180-day refund guarantee, and 24/7 live chat support.

A Cambodia eSIM card from HelloRoam costs from $3.66 in USD. Fixed data plans range from 1GB to 20GB. Unlimited daily plans start at $20 for longer stays. Compare that to AT&T International Day Pass at $12/day, Verizon TravelPass at $10/day, or T-Mobile Go5G Plus add-ons. All HelloRoam e-sim plans include local 4G LTE and 5G access with no overage charges, no carrier contract, and no daily fees.

HelloRoam eSIM in Cambodia connects to local 4G LTE and 5G carrier networks, the same towers locals use. Your phone picks the strongest signal the moment you land at the airport. Coverage spans major cities, highways, and most rural areas. HelloRoam partners with 203+ carrier networks globally, so you get speeds similar to what you're used to on T-Mobile, AT&T, or Verizon at home.

Buy your Cambodia e SIM before you leave home in three steps. First, pick your plan at helloroam.com and check out in USD. Second, scan the QR code from your email in Settings under Add eSIM or Add Cellular Plan. Third, your eSIM installs in under 2 minutes. Set it up the night before your flight from LAX, JFK, SFO, or any US airport and land connected.

iPhone XS and all newer models work with HelloRoam e-sim in Cambodia. iPhone 14 and later sold in the US ship eSIM-only with no physical SIM tray. iPhone 15 and iPhone 16 support dual eSIM, so your AT&T or Verizon line stays active for calls while HelloRoam handles travel data. Go to Settings, tap Cellular, then Add eSIM, and scan the QR code from your email.

A Cambodia eSIM from HelloRoam starts from $3.66 per day, paid once in USD. AT&T International Day Pass charges $12 per day. Verizon TravelPass costs $10 per day. T-Mobile Go5G Plus includes some free data but throttles speeds after 5GB. HelloRoam connects to local networks in Cambodia at local data prices, not the retail roaming rates US carriers charge.

Activate your Cambodia eSIM at home before heading to the airport. Open Settings on your iPhone or Android, tap Add eSIM, and scan the QR code from your HelloRoam email. The process takes under 2 minutes. Your e SIM connects to a local network the moment your plane lands. No hunting for a SIM kiosk at JFK, LAX, or SFO. No SIM card swap needed.

HelloRoam offers a 180-day refund window on all eSIM plans, processed back to your original USD payment method. If your trip changes and you have not installed or activated your e-sim, you get a full refund. If you used some data, HelloRoam refunds the unused portion. Contact support with your order ID within 180 days. Refunds process in 5 to 14 business days to your US bank or card. HelloRoam's 180-day window is longer than Airalo and most competitors.

HelloRoam eSIM works on any carrier-unlocked phone, including phones originally on T-Mobile or Verizon. If your phone is paid off and unlocked, scan the QR code in Settings to add HelloRoam as a second line. Your T-Mobile or Verizon number stays active for calls and texts while HelloRoam handles data in Cambodia. Phones still on a carrier payment plan may require unlocking first. Complies with US CCPA data privacy rules. Does not sell personal data.

HelloRoam eSIM for business travel and leisure to Cambodia connects to 203+ carrier networks across 185+ countries, starting from $3.66, with a 180-day refund guarantee. Whether you need an eSIM for business travel or a vacation, it works on any unlocked eSIM compatible iPhone, Samsung, or Android phone. You get local 4G LTE and 5G speeds, 24/7 live chat support, and instant QR code delivery. No store visit and no contract required.

HelloRoam eSIM plans start from $3.66 per day across 185+ countries with no carrier contract. Compared to Verizon TravelPass at $10/day and T-Mobile international add-ons, HelloRoam gives you the same local data speeds at a fraction of the price. No store visit, no paperwork, and no locked contracts. Your eSIM arrives by QR code and activates in under two minutes.

HelloRoam is a global eSIM platform that partners with local carriers in 185+ countries, including Cambodia. Instead of charging retail roaming rates, HelloRoam connects your phone to a local partner network so you pay local data prices. You get the same speeds as a local prepaid sim card without the premium fees charged by T-Mobile or Verizon for international plans. Buy a plan, scan a QR code, and connect on arrival. Plans cover the EU, Europe, and 185+ destinations worldwide. HelloRoam is an eSIM platform, not an MVNO. It partners directly with local carrier networks in Cambodia to deliver data at local speeds.

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.