The best eSIM for Cambodia is HelloRoam at $11.49 for 5 GB on Metfone and Cellcard. That is $1.51 under Airalo's $13.00 for the same 5 GB, and Holafly's 5-day Cambodia pass costs $12.90. Metfone runs 4G only, so nothing sold for Cambodia here reaches 5G.
ETBy eSIMRated Editorial TeamEditorial Team· Reads every plan a provider publishes for a destination, checks its network list and terms against the provider's own pages, and scores it on eSIMRated's published five-category rubric.||
HelloRoam is the best eSIM for Cambodia at $11.49 for 5 GB on Metfone and Cellcard
eSIM provider comparison for Cambodia. Prices verified September 20, 2026.
Provider
Price (5GB)
Coverage
Rating
Best For
HelloRoamBest Value
$11.49
Metfone and Cellcard
4.9/5
Best overall
Airalo
$13.00
200+ countries
4.5/5
Most destinations
Holafly
Unlimited
160 countries
4.2/5
Heavy users
Our top 3 picks for Cambodia
We evaluated 6 eSIM plans available for Cambodia, comparing them on verified pricing, network coverage, top-up availability, and app quality. Five stood out.
HelloRoam
Best Value
$11.49
5 GB / 30 days
Pros: Lowest price per GB, fast activation, Cambodia coverage on Metfone and Cellcard. Cons: Newer brand, smaller community than Airalo.
The best eSIM for Cambodia is HelloRoam. Metfone is the one network a visitor eSIM can use in Cambodia, and it is the network HelloRoam routes all 6 of its Cambodia plans onto, which is why HelloRoam is the best eSIM for Cambodia at $11.49 for 5 GB rather than a close second. Metfone is partly owned by Viettel and reaches Phnom Penh, Siem Reap, Sihanoukville, Kampot and the main national highways.
Cellcard and Smart cover similar urban ground but sell no international e-sim provisioning in 2026, so neither is open to visitors. Your profile registers at PNH or REP on arrival.
Coverage analysis
Metfone and Cellcard covers Phnom Penh (all districts including Riverside, BKK1, and Toul Sleng), Siem Reap city and the entire Angkor Archaeological Park, and Sihanoukville waterfront. The Phnom Penh to Siem Reap National Road 6 maintains 4G throughout. Kampot and Kep coastal towns have 4G.
Remote areas of Mondulkiri and Ratanakiri provinces in the eastern highlands carry 3G or weaker signal. The Cardamom Mountains interior has minimal coverage.
Activation
Install your eSIM before landing at PNH (Phnom Penh International) or REP (Siem Reap Angkor). Scan the QR code in Settings, then Mobile Data, then Add eSIM. Metfone and Cellcard registers the profile after landing, with no store visit.
PassApp and Grab ride-hailing work as soon as the line is live. Tethering is active on all 6 plans. Angkor Wat temple grounds hold 4G, including inside Angkor Thom and the Bayon.
Data usage tips
PassApp Taxis and Grab Cambodia each use under 15 MB per trip in Phnom Penh. The Angkor Wat audio guide app for temple complexes downloads 200 MB offline and then uses near-zero data. ABA and Wing banking apps use under 5 MB per transaction.
Budget 400-600 MB per day in cities for maps, messaging, and social media. Siem Reap night market navigation uses 50 MB per evening.
eSIM plan pricing in Cambodia
Cambodia eSIM plans start at $3.99 for 1 GB over 7 days on Metfone and Cellcard. 3 GB costs $7.99, 5 GB costs $11.49, 10 GB costs $18.90 and 20 GB costs $28.80. The 20 GB plan works out to $1.44/GB, and a 1-day plan costs $3.66 with 2 GB at full speed before a fair-use slowdown. HelloRoam's 5 GB Cambodia plan at $11.49 is $1.51 under Airalo's $13.00 and $1.41 under Holafly's $12.90 5-day pass, which is what makes it the best eSIM for Cambodia at this size.
The trade-off is the network: Metfone alone, on 4G, with no 5G and no fallback carrier if the signal drops.
All 6 Cambodia eSIM plans, from $3.66 to $28.80
Cambodia 20GB 30Days
Metfone (4G), Cellcard (4G)30 daysTop-up available
$28.80
20 GB · 30 days
Per GB$1.44
TetheringYes
NetworksMetfone and Cellcard
Cambodia 10GB 30Days
Metfone (4G), Cellcard (4G)30 daysTop-up available
$18.90
10 GB · 30 days
Per GB$1.89
TetheringYes
NetworksMetfone and Cellcard
Cambodia 5GB 30Days
Metfone (4G), Cellcard (4G)30 daysTop-up available
$11.49
5 GB · 30 days
Per GB$2.30
TetheringYes
NetworksMetfone and Cellcard
Cambodia 3GB 30Days
Metfone (4G), Cellcard (4G)30 daysTop-up available
$7.99
3 GB · 30 days
Per GB$2.66
TetheringYes
NetworksMetfone and Cellcard
Cambodia 1GB 7Days
Metfone (4G), Cellcard (4G)7 daysTop-up available
$3.99
1 GB · 7 days
Per GB$3.99
TetheringYes
NetworksMetfone and Cellcard
All eSIM plans for Cambodia. Prices verified September 20, 2026.
Plan
Network
Validity
Price
Cambodia 20GB 30Days ⭐
Metfone and Cellcard
30 days / 20 GB
$28.80
Cambodia 10GB 30Days
Metfone and Cellcard
30 days / 10 GB
$18.90
Cambodia 5GB 30Days
Metfone and Cellcard
30 days / 5 GB
$11.49
Cambodia 3GB 30Days
Metfone and Cellcard
30 days / 3 GB
$7.99
Cambodia 1GB 7Days
Metfone and Cellcard
7 days / 1 GB
$3.99
Cambodia 2GB/Day
Metfone and Cellcard
1 day / 2 GB per day
$3.66
Prices verified: September 20, 2026
Questions about Cambodia eSIMs
What is the best eSIM for Cambodia?
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The best eSIM for Cambodia is HelloRoam at $11.49 for 5 GB on Metfone and Cellcard, which is $1.51 under Airalo's $13.00 for the same size. Holafly's 5-day Cambodia pass costs $12.90. A 7-day Phnom Penh and Angkor trip runs about 600 MB a day, so 5 GB fits; longer routes down to Sihanoukville want 10 GB at $18.90.
How much does an eSIM for Cambodia cost?
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HelloRoam prices 6 Cambodia plans on Metfone and Cellcard, starting at $3.99 for 1 GB over 7 days. 3 GB costs $7.99, 5 GB costs $11.49, 10 GB costs $18.90 and 20 GB costs $28.80. The 20 GB tier works out to $1.44/GB, and a 1-day plan costs $3.66 with 2 GB at full speed before a fair-use slowdown.
How do I activate an eSIM in Cambodia?
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The best eSIM for Cambodia is HelloRoam. Install the QR code before you land at PNH or REP: open Settings, tap Mobile Data, then Add eSIM, then scan. Metfone and Cellcard registers the profile after landing, with no store visit. PassApp and Grab work in the arrivals hall as soon as the line is live, and tethering is on across all 6 plans without any extra step.
How much data do I need in Cambodia?
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The best eSIM for Cambodia is HelloRoam. A 7-day Phnom Penh and Siem Reap trip uses 3-5 GB: PassApp rides, Angkor temple navigation and social posts run about 600 MB per day. A 2-week route adding Sihanoukville and Kampot needs 6-8 GB. Remote workers on video calls should budget 1-2 GB per hour, which pushes most of them to the 10 GB plan at $18.90.
Which networks do eSIMs use in Cambodia?
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The best eSIM for Cambodia is HelloRoam. Cambodia eSIM plans connect to Metfone on 4G LTE, the single network open to visitor profiles here. Metfone is Cambodia's largest operator by infrastructure and reaches every major tourist destination, Angkor Wat included. Cellcard and Smart sell no international eSIM access in 2026. Your profile registers automatically at PNH or REP, with no manual network selection.
Is there 4G across the Angkor Archaeological Park?
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The best eSIM for Cambodia is HelloRoam. Metfone and Cellcard covers the whole Angkor Archaeological Park, including the Angkor Wat main complex, Angkor Thom, the Bayon, Ta Prohm and Banteay Srei. Signal holds well enough for live video from every major temple site. The 5 km road between Siem Reap town and the Angkor gate keeps continuous 4G, so navigation works door to door.
How far does Metfone coverage reach outside the cities?
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The best eSIM for Cambodia is HelloRoam. Metfone and Cellcard follows National Road 6 between Phnom Penh and Siem Reap, National Road 4 to Sihanoukville, and the Kampot coastal area. Mondulkiri and Ratanakiri in the eastern highlands carry 3G only outside the district towns. Cardamom Mountains trekking routes have nothing at all, so download offline maps before you leave Kampot or Phnom Penh.
Does my phone support eSIM in Cambodia?
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The best eSIM for Cambodia is HelloRoam. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM in Cambodia. Your device must be carrier-unlocked. Metfone and Cellcard uses standard GSMA eSIM provisioning, so any compliant profile loads. Dual-SIM models let you keep your home number reachable alongside the Metfone Cambodia eSIM on 1 of the 6 plans.
Can I use a Cambodia eSIM for hotspot tethering?
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The best eSIM for Cambodia is HelloRoam. All 6 Cambodia eSIM plans include hotspot tethering at no extra cost. Share Metfone and Cellcard with a laptop in a Phnom Penh cafe or a Siem Reap co-working space. Tethering on the 10 GB plan at $18.90 handles 3-4 remote workdays of email and light browsing. The 1-day plan at $3.66 carries 2 GB at full speed before a fair-use slowdown.
Which Cambodia eSIM plan costs the least?
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The best eSIM for Cambodia is HelloRoam. The 1-day plan costs $3.66 and carries 2 GB at full speed before a fair-use slowdown. The 1 GB plan over 7 days costs $3.99, which is the entry point among the fixed bundles. For stays of 3 days or more, the 3 GB plan at $7.99 gives more data per dollar than stacking day passes, and 20 GB at $28.80 works out to $1.44/GB.
Provider reviews
Read our in-depth reviews of the top eSIM providers available in Cambodia.
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