Cambodia eSIM providers at a glance

ProviderDataDurationPriceHotspot
Airalo Top pick1 – 20 GB7 – 30 days$4.50 – $20YesDetails →
Yesim Unlimited1 – Unlimited3 – 30 days$1.50 – $45YesDetails →
Saily1 – 20 GB7 – 30 days$3.49 – $18YesDetails →
DrimsimPay-as-you-goNo expiry~$3.00/GBYesDetails →

Starting prices shown. Plans and pricing change — verify on Airalo, Yesim, Saily, or Drimsim before purchasing.

Detailed provider reviews for Cambodia

Airalo

Recommended

Airalo partners with Smart and other major carriers in Cambodia for reliable coverage across the country. Their app is polished, installation takes minutes, and there's a wide range of data packages.

1 GB
$4.50 · 7 days
3 GB
$8.50 · 15 days
5 GB
$11.50 · 30 days
10 GB
$16.00 · 30 days
20 GB
$26.00 · 30 days
Pros
  • Partners with Smart — strong local coverage
  • Proven reliability with millions of users
  • Clean app with real-time data tracking
  • Regional plans available for multi-country trips
  • Hotspot/tethering on all plans
Cons
  • Not always the cheapest per GB
  • 1 GB plan insufficient for heavy users
  • No true unlimited option in all countries
  • Slightly pricier at entry level than Saily
Visit Airalo →

Yesim

Best price

Yesim offers unlimited data plans for Cambodia — ideal for digital nomads, remote workers, or anyone who doesn't want to count megabytes. Competitive pricing on larger packages.

1 GB
$1.50 · 3 days
5 GB
$7.50 · 14 days
10 GB
$12.00 · 30 days
Unlimited
$27.60 · 7 days
Pros
  • Unlimited data plans available
  • SwitchLess network technology for best signal
  • Competitive pricing on larger packages
  • Real-time usage monitoring
Cons
  • Fewer budget small-data plans
  • Fair usage cap on unlimited (~70 GB/mo)
  • VPN feature iOS-only
  • Fewer user reviews than Airalo
Visit Yesim →

Saily

Privacy-focused

Saily provides Cambodia plans with built-in ad blocking and web protection from the NordVPN team. The cheapest entry point and genuine privacy features make it attractive for security-conscious travelers.

1 GB
$3.49 · 7 days
3 GB
$7.99 · 30 days
5 GB
$11.99 · 30 days
20 GB
$22.99 · 30 days
Pros
  • Built-in ad blocker and web protection
  • Cheapest 1 GB entry plan
  • NordVPN security pedigree
  • Clean minimal app
Cons
  • Fewer countries (150+) than Airalo
  • Newer provider with fewer reviews
  • 30-day activation window
  • No unlimited option
Visit Saily →

Drimsim

Pay-as-you-go

Drimsim works in Cambodia on a pay-per-MB basis. Higher per-GB cost but zero waste — useful as a backup or for multi-country trips where you want one balance across all destinations.

Pay-as-you-go
~$4.00/GB
No expiry
Balance never expires
Pros
  • Pay only for data you use
  • Works in 197 countries
  • Balance never expires
  • Good backup for multi-country trips
Cons
  • Higher per-GB cost than prepaid
  • No bulk discounts
  • Basic app
  • Not suitable as primary data
Visit Drimsim →

How much data do you need in Cambodia?

Cambodia has free Wi-Fi in most guesthouses and cafes, but speeds are slow. For Grab, Angkor Wat navigation, and real-time translation, mobile data is important.

Our recommendation: 3–5 GB for a week. Cambodian eSIM data is very cheap.

Network coverage in Cambodia

Smart and Cellcard have good 4G in Phnom Penh, Siem Reap, and Sihanoukville. Rural areas between cities may have 3G only. The temples of Angkor have reliable coverage.

Tips for using an eSIM in Cambodia

Grab works in Phnom Penh and Siem Reap. Essential for getting around — tuk-tuk prices are negotiable but Grab gives fixed rates.

USD is widely accepted. Cambodia uses USD alongside Riel — useful to know for data top-ups if needed.

Frequently asked questions

Airalo is the most reliable choice for Cambodia with strong local carrier partnerships. For unlimited data, Yesim offers the best value. Budget travelers should start with Saily's $3.49 plan.
For typical tourist use (maps, messaging, social media): 3–5 GB per week. Heavy users who work remotely or stream should budget 10+ GB or choose unlimited.
Yes. Modern smartphones support dual SIM. Keep your physical SIM for calls/SMS while using the eSIM for data. You'll still receive verification codes on your home number.
For most travelers, yes. eSIM activates instantly without passport registration or queues. Coverage uses the same networks as local SIMs. The convenience advantage is significant.