Airalo eSIM Review in Thailand and Cambodia
Last Updated on October 1, 2025 by Charlotte
Since many phones sold in the USA no longer have physical SIM card slots, I opted to purchase an eSIM in advance to ensure internet connectivity as soon as I arrived in Thailand. From comparing my experiences with physical SIM cards to using eSIMs across Thailand and Cambodia, this review covers the convenience, coverage, and value that eSIM technology offers for your next international trip.
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My Experience With eSIMs VS Physical SIM Cards
The eSIM Experience
During my recent trip to Thailand in 2024, I had a much smoother experience with internet connectivity in comparison to my previous visit in 2014. This visit, I had my Airalo eSIM pre-downloaded on my phone and activated it shortly after landing at Bangkok Airport. Within minutes, I had internet access, which allowed me to check maps, message my hotel and driver, and get real-time information on my connecting domestic flight without any hassle. This time, I was able to relax and enjoy the amenities of the airport lounge during my layover, like grabbing a coffee and unwinding, instead of running around stressed like a chicken with its head cut off, trying to find a SIM card shop and waiting in line to activate my service.
The Physical SIM Experience
In contrast, during my first trip to Thailand in 2014, I bought a physical SIM card at the airport upon arrival. To activate cell service with a Thai phone number, you’re required to show your passport. Unfortunately, I didn’t realize my iPhone was still locked to my US carrier, so I couldn’t activate the service after spending $30 USD on a SIM card from AIS. Fortunately, a Thai friend let me borrow an old unlocked Android phone, allowing me to use data and messaging for the rest of my trip. However, the whole experience was stressful, especially since it was my first solo trip outside the USA. I was grateful to have local friends in Bangkok who helped me get online.
Airalo eSIM Cell Coverage In Thailand
When I traveled to Thailand, I used the Happy Tourist Infinite SIM from AirAlo, which gave me unlimited data and worked perfectly for everything I needed — Google Maps, Grab rides, Instagram stories, and checking into hotels. During my trip, I visited Chiang Mai, Phuket, Khao Lak, Ao Nang, and Bangkok, and I had strong data speeds and coverage in all these areas. Surprisingly, I even had service in the remote Surin Islands. In many places, the data speeds from my eSIM were faster than the Wi-Fi at my hotels. I could easily watch TikToks, load Google Maps, stream Netflix, and sync with iCloud in real time.
As of March 2025, AirAlo’s Thailand packages now operate through the AIS network. Currently, AirAlo offers eSIM packages in Thailand starting at $4.50 USD. These plans come with a data cap but they are top-up able if needed. I haven’t personally used this updated eSIM, but AIS is a major Thai provider that I’ve used in the past with a physical SIM card, and I had no issues with coverage during that trip. In addition, a local friend of mine who lives in Bangkok even recommends AIS over DTAC, so I’d feel comfortable trying their eSIM option on a future visit.
Airalo eSIM Cell Coverage In Cambodia
I purchased the Connect Cambodia Seven-Day 1 GB eSIM for Cambodia. Since I was only visiting Angkor Wat for three days, 1 GB of data was enough for me. The Cambodia eSIM used the Viettel (Metfone) network, and I had excellent service in Siem Reap and within the Angkor Archaeological Park. The only area where coverage was sparse was in very rural locations, like the area beyond the Cambodia Landmine Museum.
eSIM Benefits
- Multiple eSIM Slots: Many modern phones support multiple eSIMs, allowing you to use both a foreign eSIM and your regular one simultaneously. This means you can still receive SMS messages for two-factor authentication.
- No Risk of Losing a SIM Card: Since everything is handled digitally, there’s no risk of misplacing a physical SIM card, which happened to me on a trip to Europe.
- Saves Time Upon Arrival: You won’t have to waste time at the airport comparing vendors and prices.
- Peace of Mind: You’ll know you have cell service as soon as you land, and you won’t be affected by public holidays when SIM card shops may be closed.
eSIMs vs. Physical SIM Cards: Factors to Consider
When deciding between eSIMs and physical SIM cards, it’s essential to consider factors such as:
- Cost
- Convenience
- The length of your stay
- eSIM compatibility with your cellphone
You can check whether you have a device compatible with AirAlo eSIMs here.
eSIM Value for Short to Medium-Length Trips (Up to 30 Days)
If you’re planning a short to medium-length trip (up to a month), Airalo eSIMs can be a great option. Overall, my experience with Airalo’s eSIMs made traveling across Thailand and Cambodia so much easier and stress-free. The convenience of setting up the eSIM before arrival, the reliable coverage, and the peace of mind that comes with knowing you’ll be connected right away made a world of difference.
eSIM Value for Extended Stays (Longer than 30 Days)
If you’re planning a longer stay or seeking the most budget-friendly option, purchasing a physical SIM card in person may be more cost-effective. This option comes at the expense of convenience, as you’ll need to visit a mobile provider and set up your service upon arrival. For extended stays, researching local mobile providers and their long-term plans can help you find the best value for your needs.
Making the Right Choice for Your Trip
If you’re planning a trip and want to skip the hassle of physical SIM cards and your personal cell phone has eSIM capabilities, purchasing eSIMs before your trip could be a good fit for you. You can purchase your Airalo eSIM for 200 plus countries and regions here and stay connected throughout your travels.
