I looked at three years of exclusive CNET data of iPhone performance to find out which models hold their charges best.

Buying an iPhone is easy: Figure out what the most recent iPhone release number is, decide on which size you want or if you want to pay extra for better cameras, and click "buy." Android, not so much.

Apple is reportedly working on two versions of its next big mobile processor, the A20 and the A20 Pro, which are expected to ...