eSIM Providers for Cambodia (2026) — 5 Compared

We score each provider on five weighted dimensions for Cambodia: Pricing Tiers (20%) — per-GB cost and plan range; Coverage Breadth (20%) — carrier routing quality and 4G LTE network reach via Metfone; Network Generation (20%) — which technologies the local network carries; App Features (20%) — installation flow and eSIM management; Support Channels (20%) — which channels exist and how long the refund window runs. HelloRoam, Airalo, Holafly, Saily, and Nomad are scored independently for each destination. The same provider can rank differently for Cambodia versus other countries depending on local carrier partnerships and pricing.

Airalo leads on coverage breadth for Cambodia with a 4.9/5 in our comparison matrix coverage score and 200+ country network footprint. Coverage routes through Metfone. For Cambodia specifically, all five providers access the same 4G LTE infrastructure, so urban coverage is comparable between them. Airalo's coverage advantage matters most for multi-country itineraries extending beyond Cambodia — Holafly, Saily, and Nomad score equally for single-country trips.

Five scoring dimensions drive the Cambodia matrix. Pricing Tiers (20%) compares per-GB cost at each tier — the lowest rate for Cambodia is $1.44/GB. Coverage Breadth (20%) measures carrier routing breadth: all five providers access 4G LTE via local operators. Network Generation (20%) reflects which technologies the local carriers run. App Features (20%) grades installation flow and data management features. Support Channels (20%) weighs refund windows: Holafly's 180 days leads, Airalo's 14 days trails. Each dimension is scored 1-5, then weighted to produce the composite ranking.

Most travelers to Cambodia use 1-2GB per day on cellular. Maps, messaging, and social media consume 500MB-1GB daily. Streaming video pushes usage to 3-5GB per day. For a 7-day trip with good WiFi availability, a 5GB fixed plan covers light-to-moderate usage comfortably. Heavy users should consider Holafly's unlimited daily plan at $3.66/day. WiFi at hotels and cafes in Cambodia reduces cellular consumption by 30-60% depending on usage patterns.

Unlimited data in Cambodia costs $3.66/day through Holafly — $25.62 for a 7-day trip. A 5GB fixed plan costs $11.49. The breakeven point: if you use more than 8GB during your Cambodia trip, unlimited becomes cheaper per-GB. Remote workers streaming video or on daily video calls easily exceed 5GB per day, making unlimited the clear value play. Casual travelers using maps and messaging rarely need unlimited.

Install your Cambodia eSIM 24-48 hours before departure while you have stable WiFi. Do not enable data roaming until you land. Most providers start the plan validity clock at first data use, not at installation. Airalo and Holafly both confirm this policy for Cambodia. Saily and Nomad start validity on first connection. Install early to troubleshoot any QR scanning issues while you still have home internet. Enable data roaming in Cambodia only after landing and clearing customs.

Set your travel eSIM as the data line and keep your home SIM for calls and texts. On iPhone: Settings > Cellular > select the Cambodia eSIM line > Turn On This Line > set as Cellular Data. On Android: Settings > Network > SIM Manager > set eSIM as mobile data. Disable Data Roaming on your home SIM to prevent charges. Enable Data Roaming on the Cambodia eSIM only. All five providers — HelloRoam, Airalo, Holafly, Saily, Nomad — work in dual SIM mode.

Cambodia travel eSIMs run on 4G LTE. 5G coverage here is none. All five providers — HelloRoam, Airalo, Holafly, Saily, Nomad — access the same Metfone infrastructure, so the network is the same whichever one you buy. Peak-hour slowdowns affect all providers equally in dense urban areas. We publish no speed measurements, because we do not measure anyone's network.

All five providers deliver nearly identical speeds in Cambodia — standard 4G LTE service — because they route through the same Metfone infrastructure. eSIM providers do not own towers; they lease capacity from Cambodia's carriers. Speed differences between HelloRoam, Airalo, Holafly, Saily, and Nomad are negligible under normal conditions. Peak-hour congestion in Cambodia cities affects all providers equally. Our Network dimension (20% weight) scores them within 0.2 points of each other for most destinations.

For Cambodia, the five providers split into clear use cases. Airalo scores highest for multi-country itineraries — 200+ destinations on a single account. Holafly scores highest on unlimited daily data if you stream or work remotely. Saily scores highest on privacy with built-in VPN protection (NordVPN infrastructure) at no extra cost. Nomad has the lowest per-GB price if cost is the deciding factor, starting from $3.99 for 1GB. Fixed data plans suit trips under 14 days; unlimited daily makes sense when you burn 5+ GB per day.

Airalo supports in-app top-ups for Cambodia — purchase additional data without installing a new eSIM. Holafly's unlimited plan eliminates top-up need entirely. Saily requires a new eSIM purchase for more data. Nomad also requires a separate purchase. Top-ups need an internet connection: WiFi (good availability in Cambodia) or remaining cellular data. Buy top-ups before your current plan runs out to avoid being offline in Cambodia while trying to purchase more data.

Refund policies differ across the five providers for Cambodia plans. Holafly offers the most generous policy: 180 days to request a refund on unused plans. Saily and Nomad both offer 30-day refund windows for unused eSIM profiles. Airalo provides a 14-day refund period. All five require the plan to be unused — no data consumed — to qualify. If you have already activated and used data in Cambodia, refunds are at provider discretion.

Switching eSIM providers mid-trip in Cambodia requires WiFi and 5-10 minutes. Steps: connect to WiFi, purchase a new plan from the alternate provider, scan the QR code, set the new eSIM as your data line. iPhone 13+ holds multiple eSIM profiles — no deletion needed. Older devices may require removing the old profile first. Refund the unused plan: Holafly gives 180 days, Saily and Nomad 30 days, Airalo 14 days. All five providers connect to the same Cambodia 4G LTE carriers.

Cambodia eSIM prices range from $3.99 for 1GB (entry level) to $28.80 for 20GB (largest fixed plan). Unlimited daily data is available from $3.66/day. The lowest per-GB rate is $1.44 on the highest-volume fixed tier. All five providers — HelloRoam, Airalo, Holafly, Saily, Nomad — offer Cambodia plans with pricing set by their individual margin structures on the same Metfone carrier infrastructure.