Internet and eSIM — My Experience

One of the things I prefer to organise before leaving Luxembourg is mobile internet.

Over several journeys, I try different eSIM solutions.

October 2024 — AIS Tourist eSIM for 30 Days

Before travelling from Luxembourg, I purchase an AIS tourist data eSIM for 30 days.

Buying an eSIM before departure is more expensive than travelling to Thailand and buying a local prepaid SIM card in a shop.

However, for me, there is an important advantage.

I activate the eSIM in Luxembourg before boarding.

After landing in Thailand, I can use the internet immediately.

I do not need to search for airport Wi-Fi.

I do not need to immediately look for a mobile phone shop.

For me, the convenience is worth considering.

For the next journey, I again purchase an AIS tourist eSIM.

This time, the package is for 60 days.

The same advantages apply.

The card can be prepared before departure and internet is available shortly after arrival.

In 2026, I try to purchase the same 60-day AIS tourist eSIM online before leaving Luxembourg.

However, the 60-day option is no longer available online in the same way.

I can find a 30-day option and consider adding additional days.

At the same time, I discover Revolut and use its services for other parts of preparing the journey.

I use Revolut to exchange euros into Thai baht and to send money to my girlfriend for wedding expenses.

I also discover that a 60-day data eSIM can be purchased through Revolut.

Unlimited data is not available, so I choose a package with 100 GB.

To use the eSIM in Thailand, roaming needs to be activated.

Based on this experience, I believe that the eSIM service is not provided directly by a national Thai operator.

In my experience, buying a local prepaid SIM card in Thailand can be less expensive.

Buying an eSIM before departure can cost more.

However, having internet immediately after landing is convenient.

My personal comparison is simple.

You want internet immediately after landing.

You do not want to search for Wi-Fi.

You do not want to immediately find a mobile phone shop.

Price is more important.

You are happy to visit a shop after arrival.

You prefer a local mobile plan.

The best option can change depending on the available offers and the length of the journey.

This page describes my own experience with the services available during my journeys.