eSIM for Cambodia

Viasimo's Cambodia eSIM starts at $1.29 for 100 MB over 7 days, running on Cellcard and Metfone with 4G LTE where available. Plans last 3 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.

Works everywhere in Cambodia

Banteay Meanchey
Battambang
Kampong Cham
Kampong Chhnang
Kampong Speu Province
Kampong Thom
Kampot

Select your planIn stock

Duration

Quantity

Unlimited data · 3 Days$9.00

Unlimited data · 3 Days ×1

$9.00

Going to more than one country? See regional plans

Does my phone take an eSIM? Check now

Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.

Not sure it works on your phone? Check compatibility

Network

Which networks does the Cambodia eSIM use?

Host networks: Cellcard / Metfone

Your eSIM picks one automatically; you do not choose or switch between them.

Data: 100 MB – 20 GB or unlimited
Validity: 3–180 days
Speed: 4G LTE
Hotspot / tethering: Supported on most devices
Activation: Automatic on arrival
Speed management: Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced
Top-ups: Add more data from your account, before the plan expires
Text messages (SMS): Data only: use an app for verification codes
Connects via: Singapore
Unused validity: 180 days before it must be installed

Setting up Buy, scan the QR code we email you, and switch on the travel line when you land. How it works

Choosing a plan

How much data do you need?

The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.

Recommended data allowances matched to the plans sold for this destination
You are	Plan for	Cheapest plan that covers it
LightMaps, messaging and the occasional lookup	About 1 GB a week	$2.001 GB, 7 days
TypicalMaps, social, photos and some browsing	About 3 to 7 GB a week	$8.005 GB, 30 days
HeavyVideo streaming, video calls and uploads	10 GB a week or more	$13.9910 GB, 30 days
Working or sharingTethering a laptop, calls and cloud sync	20 GB a week or more	$19.99Unlimited, 7 days

Work it out from your own habits

What a week abroad costs

eSIM, local SIM or roaming?

Charged per day

Your carrier roaming

Queue and plastic

A SIM at the airport

$1.29

Viasimo, one bundle

Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.

About this eSIM

Cambodia is one of the easier places on this list to stay online, because two roaming partners carry the plan rather than one: Cellcard and Metfone, both running 4G LTE. Having a second network behind you is a real advantage in a country where towers cluster around towns and highways. There is no 5G in the mix, and honestly you will not miss it; LTE handles everything a traveller here does.

Getting online when you land

Do the install at home, over wifi, and leave the line dormant until arrival. Whether you fly into Phnom Penh or Siem Reap, the arrivals process involves paperwork and queues, and fumbling with a QR code in that line helps nobody.

Once you land, switch the travel line on, allow data roaming for it, and set it as your default data connection. Keep your home SIM in the phone with data disabled so calls and one-time passcodes still reach you. The ride from Siem Reap's airport into town is a long one, and it is a good stretch to confirm your connection works before you are dependent on it.

The networks you'll be on

You will attach to whichever of Cellcard or Metfone is stronger where you stand, and in border areas or on long bus routes that failover genuinely helps. LTE is the norm in Phnom Penh, Siem Reap, Battambang and Sihanoukville. Step outside those and 3G is common, which is fine for messaging and maps and poor for anything heavy.

Cambodia is a phone-first country. Cafés, guesthouses and restaurants almost all have wifi and hand out the password without being asked, so between two mobile networks and near-universal wifi you have layers.

Where coverage holds, and where it thins

The classic route is well served. Phnom Penh holds a strong signal throughout, the Angkor Archaeological Park is covered well enough to look up which temple you are standing in, and Siem Reap's centre is dense with service. Battambang, Kampot, Kep and the Sihanoukville coast are all workable, and the National Road corridors between them keep a line most of the way.

Where it goes quiet: out on the water. The boat to Koh Rong and Koh Rong Sanloem loses signal partway, and on the islands themselves coverage is patchy and concentrated near the main beaches. The floating villages on the Tonlé Sap are unreliable once you are away from shore. The northeastern provinces of Mondulkiri and Ratanakiri have service in the provincial towns and very little in the forest and waterfall country people go there for. Preah Vihear and the remote temple sites near the Thai border are similarly thin.

What you'll actually use data for here

Ride apps do most of the work. Grab and the local tuk-tuk apps let you price a ride in advance instead of haggling in the heat, and in Phnom Penh that alone justifies the data. Telegram is unusually widely used here for business and bookings, so expect a guesthouse or a driver to ask for you on it rather than by phone.

Your Angkor pass is checked at multiple points inside the park, and having it accessible on your phone matters. Maps are worth having live rather than memorised, because Cambodian addresses often are not addresses so much as descriptions, and a dropped pin ends the confusion. Beyond that: currency conversion in your head is a nuisance without an app, bus and boat schedules shift, and translation helps once you are outside the tourist-facing places.

Before you fly

Get the eSIM installed and verified before departure, and check your phone is not carrier-locked. Download offline maps for Phnom Penh, Siem Reap and any province you are heading into, plus an offline translation pack for Khmer.

Save your Angkor pass, hotel bookings and onward bus or flight tickets as screenshots rather than links, so they open with no connection at all. If islands are on the itinerary, sort out anything internet-dependent before you board the boat; assume you are offline from the pier until you are back on the mainland. Bring a power bank and a plug adapter, and expect to charge more often than at home, since heat plus constant mapping is hard on a battery.

Unlimited runs at full speed up to a fair-use limit, then continues slower.

Before you buy

Important to know

This is a data-only eSIM. It carries no calls or SMS on its own number.
Your existing number stays on your primary SIM, so calls and verification texts keep working.
Your phone must support eSIM, and some carrier-locked phones cannot install one.
Signal varies with location, terrain, congestion and your handset. Dense urban areas are consistently better served than remote ones.
The eSIM selects a host network automatically. You cannot pick or switch between them.
Unlimited plans run at full speed up to a fair-use limit, then continue at a reduced speed. Read the fair usage policy

Looking for more information?

Frequently asked questions

Does an eSIM work in Cambodia?

Yes. Your Cambodia eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are Cellcard, Metfone. Coverage runs on 4G LTE. There is no 5G on our host network in Cambodia yet.

Do I get 5G in Cambodia?

No. Cellcard, Metfone do not yet offer 5G to visitors in Cambodia, so your eSIM connects over 4G LTE or slower. Anyone claiming 5G for this destination is quoting a spec sheet, not the network you will actually get.

Which airport do international flights to Phnom Penh use now?

Techo International Airport (KTI), in Kandal province south of the city. It began commercial operations on 9 September 2025 and took over all international flights from the old Phnom Penh International Airport (PNH). An airport express bus runs daily from 5:30am to 11:30pm, and Grab and PassApp are the usual way to book a car into town.

Which is the best mobile network in Cambodia?

There is no clear winner. In Opensignal's February 2026 report Cellcard took the most awards, with Metfone and Smart close behind; in 2025 Smart led, and in 2024 Metfone won coverage experience. Our eSIM connects to both Cellcard and Metfone over 4G/LTE, so you can use whichever of the two is stronger where you are.

Can tourists pay with KHQR codes in Cambodia?

Yes. The National Bank of Cambodia's Bakong Tourists app, launched in August 2024, lets visitors pay at any KHQR code. Email registration allows up to about US$1,000 a day, rising to about US$3,000 after an identity check through a hotel or tour operator, with no local phone number needed. You need mobile data when you scan, so keep the eSIM connected.

Do I need my passport to buy a SIM card in Cambodia?

Yes. Cambodia's regulator has ordered operators and vendors to verify ID before activating any SIM, and numbers without proper registration can be deactivated. Visitors buying a local SIM should expect to show a passport and have their details recorded. With an eSIM installed before you travel, you skip that step and are online as soon as you land.

How much data do I need for 7 days in Cambodia?

For 7 days in Cambodia, Viasimo sells 100 MB for $1.29, 500 MB for $1.59, 1 GB for $2.00, and unlimited data for $19.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.

Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →

Know before you go

Cambodia: what to know before you land

If you fly to Phnom Penh now, you land at the new Techo International Airport (KTI), which took over every international flight from the old city airport in September 2025. Our eSIM connects to both Cellcard and Metfone, and in Opensignal's February 2026 report those two picked up more awards between them than market leader Smart.

Emergency: 117 police
119 ambulance
118 fire
Plugs: ACG 230V
Currency: Cambodian riel (KHR); US dollars widely used

Main airports

KTI Techo International Airport (Phnom Penh)
SAI Siem Reap–Angkor International Airport

Apps worth having GrabPassAppTelegramBakong Tourists

Landing at Techo International Airport (KTI), Phnom Penh

Techo International Airport opened for commercial flights on 9 September 2025 and was formally inaugurated in October. It took over all international and commercial services from the old Phnom Penh International Airport (PNH), which is being turned over to military use, domestic flights and private jets. If an older blog post tells you the airport is a short tuk-tuk ride from the riverside, it is describing PNH.

KTI sits in Kandal province, south of the capital, and the journey into the centre is now a real transfer rather than a quick hop. You have two main options:

The airport express bus run by the Phnom Penh City Bus Authority, which operates daily from 5:30am to 11:30pm.
A taxi or ride-hailing car, which most visitors book on Grab or PassApp. Both apps show the fare before you confirm, so you avoid negotiating at the kerb after a long flight.

That makes data on arrival useful rather than optional. Have the eSIM switched on before you reach the arrivals hall so you can book a car, send your driver a pin and follow the route on the new highway that links the airport with Hun Sen Boulevard and National Road 2.

Cellcard, Metfone and Smart: what Opensignal found

Cambodia has three main mobile operators: Smart Axiata, Cellcard and Metfone. Our eSIM connects to Cellcard and Metfone, over 4G/LTE, and can use whichever of the two is available where you are.

Opensignal's independent reports show how close the race is. In February 2024, Metfone won Coverage Experience for the first time, while Smart took the availability awards. In February 2025, Smart dominated with six outright wins, though Cellcard still took Download Speed Experience. By the February 2026 report the picture had shifted again: Cellcard collected the most awards of any operator, four including one joint win, with Metfone on three and Smart also on three.

The practical takeaway is that none of the three runs away with it, and having two networks behind one eSIM gives you a fallback when one is weak. That matters most on the long road journeys between Phnom Penh, Siem Reap, Battambang and Kampot, where coverage is strung along the highways and one network's mast may be closer than the other's.

Paying by KHQR with the Bakong Tourists app

Cambodia runs on QR payments. The national KHQR standard, built on the central bank's Bakong system, appears on market stalls, cafés and tuk-tuk dashboards as well as in shops. In August 2024 the National Bank of Cambodia launched the Bakong Tourists app so visitors can use the same system without a local bank account.

How it works, according to the launch details:

Download it from the App Store or Google Play and register with your email. That basic level lets you spend up to 4 million riel, about US$1,000, a day.
Complete an identity check through a hotel, tour agent or operator to raise the daily limit to 12 million riel, about US$3,000. This step does not need a local phone number.
At launch, deposits were made at banks or through hotels, with card top-ups promised later, so check the current options in the app.
You can then pay at any KHQR code, and the balance can also be used in several neighbouring countries, including Thailand, Laos and Vietnam.

Every QR payment needs a live connection at the moment you scan. Keep mobile data on when you are out, rather than counting on a vendor's wifi. US dollars and riel in cash remain widely accepted alongside QR.

Cambodia's SIM registration crackdown

Cambodia has been tightening rules on prepaid SIM cards. A 2023 law requires SIM-using devices to be registered in a national database, and in May 2024 the telecoms regulator ordered operators and vendors to stop selling SIMs without collecting and verifying the buyer's identity documents. Operators were told to chase customers whose numbers were unregistered or registered to someone else, and to deactivate numbers where the paperwork was not supplied.

For a visitor, that means a street-stall SIM is no longer a quick cash purchase: expect to show your passport and wait for it to be recorded. An eSIM installed before you leave home avoids that queue and the risk of a badly registered SIM being cut off partway through your trip. Your home SIM stays in your phone for calls and texts, while the eSIM handles data.

Researched October 2026 · 5 sources

en.wikipedia.org Techo International Airport (Wikipedia)
insights.opensignal.com Cambodia Mobile Network Experience, February 2026 (Opensignal)
cambodgemag.com National Bank of Cambodia officially launches Bakong Tourist app (CambodgeMag)
developingtelecoms.com Cambodian regulator cracks down on unregistered SIM cards (Developing Telecoms)
gov.uk Cambodia travel advice: getting help (GOV.UK)

7-day itinerary

Seven days in Cambodia: Phnom Penh and the temples of Angkor

A focused first week for history lovers: two days on Phnom Penh's palace, museums and Khmer Rouge memorials, then five days around Siem Reap for Angkor Wat, the Bayon, Banteay Srei, Kbal Spean, Beng Mealea and the Tonle Sap.

Length: 7 days
Bases: 2

When to go November to February is dry and coolest, so it is the busiest time at Angkor; March to May is very hot, and the May to October rains turn the moats and the Tonle Sap full and green but make jungle paths muddy.

Day 1 Phnom Penh

Phnom Penh: Royal Palace and riverside

From Techo International Airport (KTI) take the airport express bus or a Grab or PassApp car into the centre; it is a proper transfer, not a short hop.

Start at the Royal Palace and the Silver Pagoda next door, named for the silver tiles on its floor, dressing with shoulders and knees covered. Walk across to the National Museum for its collection of Angkor-era sculpture, then on to Wat Phnom, the hill temple that gives the city its name. End the day along Sisowath Quay as the evening crowd gathers by the Tonle Sap river.

Signal 4G on Cellcard or Metfone is strong across central Phnom Penh, with the eSIM able to fall back to the other network if one is congested.
Day 2 Phnom Penh

Tuol Sleng and Choeung Ek

Choeung Ek is about 15 km south of the centre; allow 30 to 45 minutes each way by tuk-tuk or Grab.

Visit the Tuol Sleng Genocide Museum, a former school turned into the S-21 prison by the Khmer Rouge, then ride out to the Choeung Ek memorial, the best known of the killing fields, where the audio guide takes you round the site and its memorial stupa. It is a heavy day, so keep the afternoon light: browse the Russian Market (Phsar Toul Tom Poung) for crafts and silk.

Signal Good 4G at both memorials and around the Russian Market; download the Choeung Ek audio guide or keep headphones handy rather than streaming.
Day 3 Siem Reap

To Siem Reap and a sunset temple

Domestic flight from Phnom Penh to Siem Reap Angkor International (SAI), about 1 hour, plus a 50 km road transfer into town; or about 6 hours by express bus.

Travel north to Siem Reap. After checking in, buy your Angkor pass at the official ticket centre, which you need for every temple. Head out for sunset at Pre Rup, a temple-mountain of brick and laterite in the east of the park, where the view over the forest is quieter than at Phnom Bakheng. Return to town for an evening walk around the Old Market area.

Signal Coverage stays usable on most of National Road 6, with weaker patches in rural stretches. Siem Reap town and the main temple roads have reliable 4G.
Day 4 Siem Reap

Angkor Wat, Angkor Thom and Ta Prohm

Arrive at Angkor Wat before dawn to watch the towers appear above the reflecting pools, then explore the galleries and their long bas-relief panels. Continue through the south gate into Angkor Thom for the Bayon and its many carved stone faces, the Baphuon and the Terrace of the Elephants. Finish at Ta Prohm, where silk-cotton and strangler fig roots grip the walls, ideally late in the day.

Signal 4G works across the central Angkor circuit. Inside the Bayon and the deeper galleries of Ta Prohm, signal can drop to one bar; an offline temple map helps.
Day 5 Siem Reap

Banteay Srei and Kbal Spean

Banteay Srei is about 35 km from Siem Reap and Kbal Spean a little further; a hired car or tuk-tuk takes around an hour to Banteay Srei.

Head north-east to Banteay Srei, a small 10th-century temple in pinkish sandstone with some of the finest carving at Angkor. Continue to Kbal Spean in the Phnom Kulen foothills and walk the forest path, roughly 40 minutes uphill, to the riverbed where lingas and Hindu deities are carved into the rock. Stop at Preah Khan, a sprawling temple of corridors and halls, on the drive back.

Signal Fair coverage at Banteay Srei. On the Kbal Spean forest trail expect weak or no signal, so download maps and tell your driver when you plan to be back.
Day 6 Siem Reap

Beng Mealea and the Tonle Sap

Beng Mealea is about 65 km east of Siem Reap, roughly 1 hour 30 minutes by car; Kompong Phluk is about 45 minutes south of town.

Drive east to Beng Mealea, a large temple left mostly unrestored and overgrown, where wooden walkways lead you over collapsed blocks and through the jungle. Return towards Siem Reap and continue south to the stilt village of Kompong Phluk on the edge of the Tonle Sap lake for an afternoon boat trip through flooded forest, depending on water levels. Watch sunset over the lake before driving back.

Signal Coverage is patchy at Beng Mealea and on the rural roads. On the Tonle Sap boats it can disappear altogether once you are out on open water.
Day 7 Siem Reap

Angkor National Museum and departure

Allow about an hour for the 50 km transfer to Siem Reap Angkor International Airport, which has international departures as well as flights back to Phnom Penh.

Spend the morning at the Angkor National Museum, which puts the temples you have seen into context with statuary and galleries on the Khmer kings and religion. Then walk along the Siem Reap river to Wat Preah Prom Rath, a working pagoda with colourful murals, and pick up last crafts around the Old Market. Leave plenty of time for the road out to the airport.

Signal Good 4G in town and on the airport road, enough to track your transfer and check in online.

Staying connected on this route

Download an offline map of the Angkor Archaeological Park before day four; the outer temples and Kbal Spean trail have weak coverage.
Install Grab or PassApp before arrival for the long transfers from Techo and Siem Reap Angkor airports, which both sit well outside their cities.
Set up the Bakong Tourists app in Phnom Penh while you have strong signal, as KHQR payments are common at tuk-tuks and market stalls.

Itinerary sources · 3

whc.unesco.org UNESCO World Heritage Centre: Angkor
en.wikipedia.org Siem Reap–Angkor International Airport (Wikipedia)
gov.uk GOV.UK foreign travel advice: Cambodia

Where this comes from

Information and verification

Each block below says what was checked and when. Anything we cannot date, we do not claim.

Prices and plans: Every price and allowance on this page is read from the live catalog, not typed in.; Verified October 30, 2026
Host networks: The operator list comes from the network partner that carries this eSIM.; Verified October 30, 2026