Buy a case and screen protector: You'll protect your phone from costly damage and will increase the phone's resale or trade-in value for when you're ready to move on. If you're careful with how you ...

From data plans and display resolution to camera quality and battery life, Consumer Reports testing has narrowed down the most important features to keep in mind when you buy your next smart phone.

Mobile phones aren't all that mobile when it comes to switching carriers—or even owners. It may seem like a no-brainer to accept a hand-me-down phone from a friend or family member or buy a used ...