Our recommendation · AsiaOne Cambodia eSIM Pick, Sized for 7 Days (2026)
HelloRoam alone of the five takes your own currency, 31 of them. Airalo, Holafly, Nomad and Saily take dollars. 11 GB covers 7 days of moderate use in Cambodia, and the 20 GB tier at $28.80 clears it, against a list naming Cellcard and Metfone. Airalo covers more, 200+ destinations to HelloRoam's 186.
Cambodia eSIM recommendation: HelloRoam. The 20GB plan at $28.80 covers a 7-day moderate trip (11GB at 1.5GB/day) on the local network your handset finds. HelloRoam pairs a 180-day refund window with support in 63 languages for Cambodia travelers.
Our recommendation
We scored all 6 published plans for Cambodia against a 7-day moderate traveler profile. The 20GB plan at $28.80 delivers the best balance of data size and per-GB value.
The Pick: 20GB at $28.80
#1 RecommendationThe 20GB plan costs $28.80 in the HelloRoam catalogue and connects to a local network's 4G LTE network. Per-GB rate: $1.44/GB. That is the only per-destination price feed this site holds, so it is the only destination price we quote.
On plan shape and our published rubric, HelloRoam is the best fit of the 5 providers we score for a trip this size. Its own published entry rate is $3.50/GB, and it rates 8.7/10.
Who this plan fits
The typical Cambodia visitor who needs reliable data for navigation, social media, and messaging over 7 days without paying for unused capacity.
Why this plan
Trip-length match
A 7-day trip at 1.5GB/day moderate usage equals 11GB needed. The 20GB plan provides 20GB, leaving 9GB buffer for unexpected uploads or navigation-heavy days.
Per-GB value analysis
| Tier | Price | Per GB | Best for |
|---|---|---|---|
| 1GB | $3.99 | $3.99/GB | Light use (maps, email) |
| 3GB | $7.99 | $2.66/GB | Light use (maps, email) |
| 5GB | $11.49 | $2.30/GB | Moderate use (social, browsing) |
| 10GB | $18.90 | $1.89/GB | Heavy use (streaming, work) |
| 20GB Pick | $28.80 | $1.44/GB | Heavy use (streaming, work) |
Provider score breakdown
HelloRoam scores 22.3 of 25 across the 5 rubric dimensions for Cambodia. 180-day refund window on unactivated eSIMs, tied for the longest. Support in 63 languages, more than the other four combined. The main trade-off: regional multi-country bundles are not available yet.
Network routing
The published attachment list for Cambodia holds 2 operators: Cellcard or Metfone. The dataset records operator names and capability labels for Cambodia and nothing else: no throughput figure, and no statement of which operator a handset settles on. Plan the tier by trip length, not by the operator count.
Plan recommendation by usage tier
Each tier maps to a specific plan and provider for Cambodia.
Light user
Maps + messagingIf you only check maps and send messages in Cambodia, budget 4GB for 7 days. The catalogue prices the 5GB tier at $11.49 on the local network your handset finds. HelloRoam scores 86 out of 100 at this tier, the highest of the 5 we score, on plan shape and cost per gigabyte at 0.5GB a day. Support there is live chat, WhatsApp and email in 63 languages, around the clock.
Moderate user
Social + browsingThe moderate profile (1.5GB/day for social media, maps and light browsing) needs 11GB over 7 days in Cambodia. The 20GB plan runs $28.80 on the Cambodia catalogue, on a local 4G LTE network. Holafly wins this tier on the match formula, 96 out of 100, at a published $2.99/day. HelloRoam publishes more than one operator for Cambodia, so a fallback exists across cities and transit corridors. Most visitors land here. Add a tier if you expect video calls home or heavy camera translation.
Heavy user
Streaming + callsIf you stream video, run a hotspot, or join two hours of video calls daily in Cambodia, budget 21GB over 7 days. The catalogue sells unlimited here at $3.66/day, which covers that without tracking. Holafly is the match-score pick at this tier, 96 out of 100. Support there is live chat and email in 10 languages, around the clock. Queue your downloads for the hotel and spend mobile data only on live traffic.
Your Cambodia trip type, matched to a plan
Weekend, vacation, business, or backpacking. Each trip profile maps to a different plan.
Weekend (2-3 days)
Weekend trip to Cambodia (2-3 days): 5GB covers moderate use (maps, social, messaging) on a local 4G LTE network. The 5GB plan at $11.49 fits the trip. Unlimited at $10.98 for 3 days is competitive for heavy weekend use. The commonest weekend mistake is buying four times the data you will use.
Vacation (7-14 days)
Vacation in Cambodia (10 days): 15GB at 1.5GB/day for social sharing, navigation, and restaurant searches. The 20GB plan at $28.80 ($1.44/GB) on a local 4G LTE network covers the trip. Pad the estimate by 20% if your evenings end with a full photo dump.
Business (3-7 days)
Corporate travelers in Cambodia need 3GB/day across 5 days (15GB total) for conferencing, messaging, and document sync. Unlimited at $3.66/day prevents mid-meeting data cutoffs on the local network your handset finds.
Backpacking (10-30 days)
Budget backpackers in Cambodia stretch 14+ days on 0.8GB/day (12GB total). Hostel WiFi handles evening browsing and social uploads. Mobile data covers daytime maps and messaging. The 20GB plan at $28.80 on the local network your handset finds covers the trip. Unlimited at $51.24 for 14 days is overkill for light backpacker use.
Your Cambodia provider comparison
Not all providers perform equally in Cambodia. Coverage, pricing, and support quality vary by carrier routing and plan structure. If your Cambodia trip is one leg of several, Airalo is built for it: 200 published destinations and continent-scale bundles. Single-country travelers pay for reach they will not use, at a published $4.50/GB, and get 14 days of refund cover. Holafly sells one shape and sells it everywhere: unlimited daily, published from $2.99/day, with a 180-day refund window matching the longest here. It is cheapest per gigabyte past 1.5 GB a day and dearest below it, with no per-GB tier to fall back on. Saily's differentiator sits outside our scored dimensions, because no rival publishes anything comparable: a VPN built into the eSIM plan itself. Its floor is $3.99/GB, mid-table of the five. Its weakness is support, which is email in 1 language, with no round-the-clock hours, and a plan list with no unlimited tier. On price, Nomad leads the fixed plans: $3.00/GB published, cheaper than anyone else here. For scale, the cheapest Cambodia plan in our feed is 1GB at $3.99, a catalogue price. Best for single-country budget trips. Limitations: no unlimited option, no usage tracking, and support that is email in 2 languages, with no round-the-clock hours. Travelers who need help mid-trip should look at HelloRoam or Holafly. HelloRoam runs 186 destinations on 204+ carrier partners, with a published $3.50/GB on fixed plans. What puts it first on our weighting is cover rather than price: the longest refund window here, tied with Holafly. HelloRoam support is live chat, WhatsApp and email in 63 languages, around the clock. Airalo still publishes 14 more destinations.
Why the rubric leader finishes first
Why HelloRoam for Cambodia? Add up this site's weights and it lands on top at 8.7 out of 10. The two dimensions carrying it are buyer protection, 180 days on an unactivated eSIM, and support access, live chat, WhatsApp and email in 63 languages, around the clock. It does not win price: Nomad publishes $3.00/GB against its $3.50/GB. It does not win plan shape either, because Holafly is the only fully published unlimited-daily option of the 5.
Alternative options
Different traveler profiles need different plans. Here are runner-ups for each use case.
1GB at $3.99
The 1GB plan covers 2 days on the published 0.5 GB light band. Best for budget travelers who stay on WiFi when possible. Costs $3.99/GB.
20GB at $28.80
The 20GB tier handles 7 days of heavy use at 3GB/day. Best for digital nomads and business travelers who run video calls daily. Costs $1.44/GB.
Unlimited at $3.66/day
Unlimited data at $3.66/day. Break-even vs the 20GB plan at day 8. Best for trips longer than 8 days, heavy streaming, and digital nomads.
| Days | Price | Per day | Discount |
|---|---|---|---|
| 1 | $3.51 | $3.51/day | 4% |
| 3 | $10.10 | $3.37/day | 8% |
| 7 | $23.57 | $3.37/day | 8% |
| 14 | $45.60 | $3.26/day | 11% |
| 30 | $90.04 | $3.00/day | 18% |
Regional bundle alternative
The Airalo Asialink (16 countries) covers multiple countries on one eSIM. Best for multi-stop trips across Asia. Single-country plans beat regional pricing for Cambodia-only visits.
Your Cambodia data calculator
Match your daily habits to a plan tier. Most travelers fit the moderate profile.
- Maps and navigation
- Messaging and email
- Boarding passes
- Social media and photo uploads
- Navigation and ride-hailing
- Browsing and light video
- Video calls and streaming
- Remote work and cloud sync
- Laptop hotspot
Published daily bands for a 7-day trip
| Band | GB per day | 7-day total | What it covers |
|---|---|---|---|
| Light | 0.5 | 4 GB | Maps, messaging, boarding passes |
| Moderate | 1.5 | 11 GB | The above plus social feeds and browsing |
| Heavy | 3 | 21 GB | Streaming, video calls, laptop hotspot |
HelloRoam sizes a Cambodia plan against those three bands and nothing else. A 7-day trip runs 4 GB on the light band, 11 GB on the moderate one and 21 GB on the heavy one, so the gap between the cheapest and the safest tier is 17 GB of headroom. Pick the band your phone habits already sit in at home.
Your calibrated Cambodia data budget
Skip the generic calculator. Cambodia has specific conditions that change your data plan size. Cambodia's WiFi holds a day nearer the 0.5 GB light band. Use hotel WiFi for evening browsing and photo uploads. Adjusted daily estimate: 1.2GB/day (down from the 1.5GB baseline). Over 7 days: 9GB total on the local network your handset finds. The 10GB plan at $18.90 ($1.89/GB) covers this adjusted budget. That is 2GB less than the generic 11GB estimate. The difference saves you one plan tier.
Device setup
Before departure
Buy your 20GB plan from HelloRoam and scan the QR code over WiFi at home. Label the new eSIM line "Travel Data." Set it as your default data line. Keep your home SIM for calls and texts.
iPhone setup
- Settings > Cellular > Add eSIM
- Scan the QR code in your order email
- Label the line "Travel Data"
- Set as default data line
Samsung setup
- Settings > Connections > SIM Manager
- Add eSIM > Scan QR code
- Rename the line "Travel Data"
- Set as mobile data SIM
Google Pixel setup
- Settings > Network > SIMs
- Add SIM > Scan QR code
- Rename the line "Travel Data"
- Set as data SIM
After landing in Cambodia
Your eSIM activates on a local 4G LTE network as soon as you leave airplane mode in Cambodia. Verify the connection in your phone's status bar. Disable data roaming on your home SIM to avoid fees.
Common Cambodia eSIM questions
Direct answers to the questions travelers ask most about Cambodia eSIM plans.
What plan do I need?
The published attachment list for Cambodia holds 2 operators: Cellcard or Metfone. Destination plans run from $3.99 (1GB) to $28.80 (20GB) on the catalogue, the only per-destination price feed we hold. For a 7-day trip, moderate users need about 3GB. The 3GB plan at $7.99 covers that.
Best plan for 7 days?
7 days at 1.5GB/day means you need 11GB in Cambodia. The 20GB plan gives you 20GB at $28.80 ($1.44/GB) on the local network your handset finds. That is $4.11/day with 9GB to spare. Prices are the catalogue's for Cambodia.
How much data do I need?
The average smartphone user consumes about 15GB per month at home. A 7-day trip to Cambodia uses about 3GB, roughly 20% of a month's data. That is the 1.5 GB moderate band, which covers maps, social media and messaging. Cambodia has decent WiFi in hotels and cafes, which offsets about 15% of your data needs.
Which provider is cheapest?
Cambodia fixed plans start at $3.99 for 1GB on the local network your handset finds. Unlimited runs $3.66/day ($25.62/week). Both are catalogue prices. Light users save on fixed. Unlimited passes the largest fixed bundle at $28.80 after 8 days. Across published floors, Nomad is the cheapest fixed rate at $3.00/GB.
Is an eSIM worth it?
An eSIM saves money and time in Cambodia. Airport SIM cards cost $2-5 for 5-20GB / 28 days after a 15-30 minutes wait. A 20GB eSIM costs $28.80 for 11GB and activates before you board. It runs on the local network your handset finds, the same network airport SIMs use. On published plan shape and our rubric, HelloRoam is the closest fit of the 5, and its own entry rate is $3.50/GB.
eSIM vs SIM card?
Use both in Cambodia: keep your home SIM for calls and add an eSIM for data. Cambodia eSIM plans start at $3.99 for 1GB on the local network your handset finds, a catalogue price. That avoids the 15-30 minutes airport SIM queue and the $2-5 for 5-20GB / 28 days counter price. Cambodia requires SIM registration with passport, which adds time at the counter.
Your questions, answered
What is the best eSIM plan for Cambodia in 2026?
The 20GB plan at $28.80 on the local network your handset finds, a HelloRoam catalogue price. It covers 7 days of moderate use at $1.44/GB. 6 plans are available across 5 providers.
How do I choose between fixed and unlimited data for Cambodia?
Fixed data wins for trips under 8 days at moderate use. Unlimited at $3.66/day saves money if you use more than 3GB per day or stay longer than 8 days.
Which eSIM provider is best for Cambodia?
HelloRoam scores 22.3 of 25 for Cambodia across per-GB value, plan flexibility, buyer protection, support access, and destination reach, which is first of the five on this site's weighting. 180-day refund window on unactivated eSIMs, tied for the longest. Regional multi-country bundles are not available yet.
Can I switch plans mid-trip in Cambodia?
Yes. Buy a second eSIM through the provider app while in Cambodia. Most phones support 8+ eSIM profiles. Delete the expired plan to free a slot. You do not lose your home number.
Should I buy a Cambodia eSIM or a regional bundle?
A single-country plan at $1.44/GB beats regional pricing for Cambodia-only trips. Multi-country routes through Asia save with the Airalo Asialink (16 countries).
How far in advance should I buy my Cambodia eSIM?
Buy 1 to 3 days before departure. Install the QR code over WiFi at home. The validity timer starts at first network connection in Cambodia, not at purchase. This gives you time to troubleshoot any installation issues before your flight.
Is the 20GB plan enough for streaming in Cambodia?
Streaming puts a traveler on the published 3 GB heavy band. Over 7 days that is 21GB. The 20GB plan falls short for daily streaming. Heavy streamers should consider 20GB or unlimited at $3.66/day.
What network does my Cambodia eSIM connect to?
The published attachment list for Cambodia holds 2 operators: Cellcard or Metfone. The published list carries the 4G LTE capability label, and it does not record which operator a given handset selects. Save offline maps for Cambodia before you fly.
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