The main difference between a cell plan and an eSIM plan is that an eSIM only provides data, and there is no private phone number associated with it. This means you can send emails, make voice and video calls, share your location, and check social media, as long as you are using data on an eSIM-compatible device.

With a regular cell plan, you can make calls, send text messages, and use mobile data. If your device is eSIM-compatible, you can use both plans and easily switch between them, as an eSIM is not a physical SIM that needs to be inserted or removed.