President Donald Trump is just a phone call away. The device he uses to pick up, though, has changed over the years. Today, many of the CEOs, celebrities, lawmakers, and journalists trying to ...

President Donald Trump had difficulty figuring out how to stop his phone from ringing Friday during an Oval Office press conference that was supposed to be about nuclear energy.

The device has evolved significantly since Trump's flip-phone days in 2005. Initially using both Android and Apple devices during his 2016 campaign, Trump eventually became a dedicated iPhone user.

Donald Trump is known for keeping his phone close to take calls or tweet anytime, but experts warn this habit makes him ...