"eSIMs bring with them plenty of benefits. They're quick to set up, and you can easily store several of them on the same device and switch between them more quickly-advanatges that are particularly useful if you have personal and work lines, or if you're traveling and want to switch between eSIMs that work in specific countries or regions. They also protect against some security vulnerabilities. No one can take an eSIM out of your phone and use it on another device, for example."
"If you've bought a new phone that's eSIM only and you currently use a physical SIM, get in touch with your carrier and they should be able to switch you over without you losing your original number. If you're with Verizon, for example, you can do everything in the My Verizon app for Android or iOS via Get SIM on the Mobile tab-signing into the app proves your identity and the app is able to do the necessary reprogramming."
eSIMs enable fast setup, storage of multiple profiles, and rapid switching between numbers, which is useful for maintaining separate personal and work lines or using local plans while traveling. eSIMs resist certain physical security threats because they cannot be removed and are difficult to clone. eSIMs reduce waste by removing the need for physical cards, packaging, and shipping. Downsides include inconvenience if moving a SIM between multiple handsets, mandatory registration in some countries, and exposure to remote attacks via scam emails, messages, or malicious apps. Carrier or provider apps typically handle eSIM activation and number migration.
Read at WIRED
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