What type of SIM card allows for changing data services easily while overseas?

An eSIM card, or embedded SIM, facilitates changing data services without the need to physically replace a SIM card. This is particularly advantageous for travelers who want the flexibility to switch carriers or data plans while overseas. The eSIM is programmable and allows users to download different carrier profiles directly to their device, making it easy to connect to local networks without needing to find and install a new physical SIM.

In contrast, standard, micro, and nano SIM cards require a physical swap to change carriers or services. This can be cumbersome for travelers who would need to obtain a new SIM card for each new service provider they wish to use while abroad. The ease of reprogramming and the ability to manage multiple profiles on an eSIM significantly streamline the process of accessing data services globally.