The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.

To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead. I started my career with CNET all the way back in 2005, when the (original) ...