Some Windows 11 devices support a SIM card and/or eSIM that lets you connect to a cellular data network (ex: 5G), so you can get online in more places by using a cellular signal.
An eSIM lets you connect to the Internet over a cellular data connection. With an eSIM, you don't need to get a SIM card from your mobile operator, and you can quickly switch between mobile operators and data plans.
Learn how to use an eSIM to connect your Windows PC to the internet over a cellular data connection.
This tutorial will show you how to quickly check if your Windows 11 device has eSIM support.
Open Settings (Win+I).
Click/tap on Network & internet on the left side, and click/tap on Cellular on the right side. (see screenshot below)
Open the Use this SIM for cellular data drop menu to see if you have a SIM and/or eSIM available. (see screenshot below)