Best eSIM for Cambodia (2026): 8 Providers Ranked by Price and Network

Why an eSIM is useful in Cambodia

Mobile data is useful from the moment you arrive, especially when an itinerary combines Phnom Penh, Siem Reap, Angkor, Kampot, coastal areas or longer overland journeys. Installing an eSIM before departure can remove the need to find a mobile shop immediately after landing.

• Open maps and arrange an airport transfer without relying on public Wi-Fi.

• Check bus schedules, hotel messages and attraction bookings while moving between cities.

• Use translation tools for menus, addresses and conversations in Khmer.

• Keep navigation available on road journeys where Wi-Fi may be limited.

• Retain your physical SIM for home-number calls or verification messages, subject to your carrier’s roaming charges.

Main provider comparison table

The capped packages below all have 30-day validity. Cost per GB is calculated for capped plans, while Holafly’s seven-day unlimited product is shown as an alternative rather than being treated as directly equivalent. Each provider is assessed using consistent price, validity, network-transparency, hotspot and fair-use criteria.

Prices, availability, validity, listed networks and terms were checked on July 24, 2026. Providers may change them at any time; review the current sales page and checkout before buying.

Roafly is $2.00 cheaper than Airalo at 5GB, $3.00 cheaper at 10GB and $2.10 cheaper at 20GB. It is also the capped provider here combining the lowest price at all three matched tiers with two listed Cambodia networks.

Provider reviews

Roafly — Best overall value

Verdict: Roafly offers the strongest combination of price, plan choice, network disclosure and hotspot support in this comparison.

Best for: Travelers who want a competitively priced 30-day plan with both Metfone and Cellcard listed.

Pros:

• Lowest supplied price at 5GB, 10GB and 20GB.

• Lists two Cambodia networks rather than.

• Hotspot is supported across the purchased data allowance.

Limitations:

• Network generation and voice or SMS inclusion are not specified in the supplied plan information.

• Actual network availability depends on the plan, device and location.

The 10GB package is a practical middle choice for maps, messaging, browsing and moderate social-media use. The 20GB plan costs approximately $1.50 per GB, the lowest calculated rate in the table. Roafly provides support through email and WhatsApp; recent public reviews commonly mention helpful troubleshooting and successful setup assistance.

See the current Cambodia eSIM options.

Airalo — Most familiar global option

Verdict: Airalo is a reasonably priced choice for travelers who already use its service, but it does not lead this comparison on price or disclosed network count.

Best for: Existing Airalo users who prefer to keep their travel plans in a familiar global service.

Pros:

• Offers all three comparable 30-day tiers.

• Lists Smart as the underlying Cambodia network.

• Prices remain close to Roamless and aloSIM.

Limitations:

• Costs more than Roafly at every matched tier.

• Only local network is listed.

Airalo’s 10GB and 20GB prices are identical to aloSIM’s, while its 5GB plan is $0.50 cheaper. The main reason to choose it is familiarity rather than a unique Cambodia-specific advantage.

Saily — Best for existing users needing 10GB or less

Verdict: Saily covers light and moderate data requirements but has no supplied 20GB Cambodia plan.

Best for: Existing Saily users whose trip can be covered by a 5GB or 10GB allowance.

Pros:

• Both supplied plans have 30-day validity.

• The 10GB tier can cover a typical short holiday with moderate usage.

• Straightforward two-tier choice for lighter users.

Limitations:

• No 20GB package appears in the supplied comparison.

• The local Cambodia operator is not publicly specified.

Saily’s 5GB and 10GB plans are the second- and third-highest priced respectively among the providers offering those tiers. Its missing operator disclosure also makes route-level suitability harder to assess before buying.

Roamless — Best-priced non-Roafly 5GB option

Verdict: Roamless narrowly has the lowest 5GB price after Roafly and lists access through Metfone.

Best for: Travelers wanting a 30-day Metfone plan at the lowest non-Roafly 5GB price in this roster.

Pros:

• Provides 5GB, 10GB and 20GB options.

• Lists Metfone clearly.

• Prices are close to Airalo and aloSIM.

Limitations:

• Only Cambodia network is listed.

• Each matched plan costs more than Roafly’s equivalent.

The $12.95 package is $0.05 below Airalo’s 5GB price. Its 20GB plan is also marginally cheaper than the $32.00 Airalo and aloSIM options, though the difference is too small to outweigh network preference or account familiarity for many travelers.

Yesim — Best for existing users wanting two listed networks

Verdict: Yesim matches Roafly’s disclosed Metfone and Cellcard access but charges substantially more at every capped tier.

Best for: Existing Yesim customers who value two listed Cambodia networks more than the lowest price.

Pros:

• Lists both Metfone and Cellcard.

• Offers all three 30-day comparison sizes.

• Provides a 20GB option for heavier capped usage.

Limitations:

• The 5GB and 10GB packages are among the most expensive in the table.

• Its 20GB plan costs $30.10 more than Roafly’s.

Network transparency is Yesim’s clearest advantage. Price is the deciding weakness: its 10GB package costs more than twice Roafly’s, while the listed networks are the same.

Flexiroam — Best for existing Flexiroam users

Verdict: Flexiroam supplies all three data sizes, but its prices and missing operator disclosure make it difficult to recommend to a new customer.

Best for: Existing Flexiroam users who prioritize keeping plans within the same account.

Pros:

• Offers 5GB, 10GB and 20GB for 30 days.

• Provides a high-data capped option.

• Uses the same validity across the compared tiers.

Limitations:

• The Cambodia network is not publicly specified.

• It has the highest 20GB price in the comparison.

Flexiroam’s 20GB package costs $71.40, which is $41.50 more than Roafly’s equivalent. Without a disclosed local operator or another clearly differentiating Cambodia feature, its strongest fit is users already committed to the service.

aloSIM — Best for existing aloSIM users wanting Metfone

Verdict: aloSIM is a mid-priced Metfone option with a complete set of comparable 30-day plans.

Best for: Existing aloSIM customers who want to use a plan listing Metfone.

Pros:

• Offers all three capped data tiers.

• Lists Metfone as the Cambodia network.

• Matches Airalo’s prices at 10GB and 20GB.

Limitations:

• Costs more than Roafly at every tier.

• Only Cambodia network is listed.

The $21.00 10GB and $32.00 20GB plans sit close to Roamless, but its $13.50 5GB package is the highest of those three similarly positioned providers. The decision mainly comes down to existing account preference and the desire for Metfone rather than Smart.

Holafly — Best for a high-data seven-day trip

Verdict: Holafly serves a different need from the capped providers by offering a seven-day unlimited-style plan for $27.50.

Best for: Travelers expecting heavy phone-based data use over exactly week.

Pros:

• No fixed 5GB, 10GB or 20GB allowance to monitor.

• Seven-day validity aligns with a common short-trip length.

• Predictable upfront price for the selected period.

Limitations:

• Fair-use policy may affect speeds or usage conditions.

• The Cambodia network and hotspot allowance are not specified in the supplied comparison data.

This plan should not be compared through cost per GB because the full-speed allowance is not publicly defined. Review the latest fair-use and tethering language at checkout, particularly when the intended use includes laptop work, extensive video or connection sharing.

Local mobile networks

Cambodia’s principal networks in this comparison are Metfone, Cellcard and Smart. Cambodia officially launched 5G services in January 2026, but a local operator’s 5G rollout does not prove that every travel eSIM package or device will receive 5G access. 

Metfone

Metfone is operated by Viettel Cambodia and is listed by Roafly, Roamless, Yesim and aloSIM. nPerf’s April 2025–March 2026 measurements placed Metfone alongside Cellcard at the top of Cambodia’s overall and 4G performance results; Metfone led the report’s upload-speed and browsing measures. This is aggregated network evidence, not a speed promise for an individual travel eSIM.

Cellcard

Cellcard is listed by Roafly and Yesim. The same nPerf report recorded the highest average overall and 4G download measurements on Cellcard, while Cambodia’s regulator reports that its operator, CamGSM, has been deploying 5G infrastructure in Phnom Penh and selected provinces. Coverage, congestion and travel-eSIM routing can still change the experience at a specific location.

Smart

Smart is the network disclosed for Airalo. nPerf’s 2026 barometer recorded Smart with the lowest average latency and the strongest streaming measure of the three operators, while the regulator reported 5G deployments in Phnom Penh and numerous provincial capitals. Travelers should still check the current package details because an operator’s available technologies are not automatically included with every roaming eSIM.

Network selection matters most outside major urban areas. Check a current operator or crowd-sourced coverage map for the exact roads, islands or rural districts on your itinerary rather than treating any nationwide result as a coverage guarantee.

Airport and local SIM context

A local Cambodian prepaid SIM can be worthwhile for a longer stay, especially when you need a Cambodian phone number or a locally marketed voice-and-data package. Registration is an important difference: Cambodia’s telecom regulator requires mobile operators to obtain and verify valid identification before activating SIM service, so travelers should bring a passport and buy from an authorized seller. 

Airport counters can provide staff-assisted setup, but stock, opening hours and available promotions may differ by terminal and arrival time. A city operator store may offer a broader selection, although it requires a shop visit and physical-SIM installation.

An eSIM is more convenient when immediate data for maps, accommodation messages or transport is the priority. It also lets compatible dual-SIM phones keep the home SIM installed. A physical SIM remains the more suitable option when a local Cambodian number is essential.

Recommendations by traveler type

• For most travelers: Roafly’s 10GB plan at $18.00 balances price and allowance while listing both Metfone and Cellcard.
• For light users: Choose Roafly’s 5GB plan at $11.00 when hotel Wi-Fi will handle streaming and mobile data is mainly for maps, messaging and bookings.
• For heavier capped use: Roafly’s 20GB plan at $29.90 has the lowest matched price and lowest calculated cost per GB.
• For an unlimited-style week: Holafly’s seven-day package at $27.50 better suits travelers who do not want to monitor a fixed allowance, provided they accept the current fair-use and hotspot terms.
• For Smart access: Airalo is the provider in the supplied roster that explicitly lists Smart.
• For an existing provider account: Airalo, Saily, Yesim, Flexiroam or aloSIM may still be convenient when avoiding another signup matters more than the price difference.
• Travelers continuing from Cambodia to other destinations in Asia may find an Asia eSIM, valid in 12 countries, more practical than purchasing separate country plans.

FAQs

Which eSIM is best for Cambodia?

Roafly is the best overall option in this comparison because it has the lowest supplied price at 5GB, 10GB and 20GB, lists two Cambodia networks, and confirms hotspot support across the purchased allowance.

How much data do I need for Cambodia?

Around 5GB can cover a short trip focused on maps, messaging and occasional browsing. Choose 10GB for more frequent social media, image uploads or independent travel, while 20GB is more appropriate for regular video, remote work or hotspot use.

Does Cambodia have 5G?

Yes. Cambodia officially launched commercial 5G services on January 1, 2026, and Smart, Cellcard’s operator CamGSM, and Metfone’s operator Viettel Cambodia have continued deploying base stations. Travel-eSIM 5G access still depends on the package, device, location and roaming configuration. 

Is Metfone, Cellcard or Smart better?

There is no universal winner for every route. Recent nPerf measurements put Metfone and Cellcard jointly ahead overall, with different strengths across download speed, upload speed, browsing, latency and streaming. Smart also led selected experience measures. Check route-level coverage for the places you will actually visit.

Can I use hotspot with a Cambodia eSIM?

Roafly confirms that hotspot is supported across the purchased data allowance, with no separate tethering quota. This means shared data still comes from the remaining 5GB, 10GB or 20GB total. Hotspot terms for the other providers should be checked at checkout.

Do these plans include a Cambodian phone number?

Phone-number, voice and SMS details are not consistently specified in the supplied comparison data. Treat the listed packages as data-focused unless the checkout page explicitly confirms calling, texting or a local number.

Is a local Cambodian SIM cheaper than an eSIM?

It may be, particularly for a longer stay or a locally promoted high-data plan. The trade-off is that you must find an authorized seller, provide valid identification, complete registration and replace or supplement your existing SIM.

Final verdict

Roafly is the strongest all-round Cambodia eSIM in this closed comparison. Its $11.00, $18.00 and $29.90 prices lead every matched capped tier, while the combination of Metfone and Cellcard disclosure and hotspot support adds practical value beyond price alone.

Airalo is the logical alternative for existing users who want Smart, while Roamless and aloSIM are credible single-network Metfone choices. Holafly should be considered separately for a high-data seven-day trip, with its current fair-use and hotspot conditions reviewed before purchase.

This guide is published by Roafly and includes Roafly in the comparison. Provider sales pages and policies were checked on July 24, 2026; prices, networks and terms may change.