If you have a relatively new vehicle, it probably has USB-A and newer USB-C ports on the dash, in the center console, and maybe in the back for passengers. They're everywhere, and it makes charging phones fast and easy, right? Nope.

Virtually every modern smartphone is big, but there was a time when companies made extra-wide phablets (a portmanteau of "phone tablets") and were proud of it. Samsung's early Galaxy Note models are the classic examples, but there were several others that made screen width their selling angle. Now, they're coming back.

SIM cards are a relic of an age where multiple people had to share a single phone, and the cards themselves were enormous. These days, SIM cards are tiny and technically unnecessary thanks to the rise of eSIMs.

Many cellular carriers proudly claim to have unlimited data plans, but that's misleading: in many cases, you'll face throttling once you pass a cap. You might have to pay extra to restore the service you expect, and features like hotspot tethering or cellular smartwatches might have their own restrictions.