Do billionaires use iPhone or Android?

Billionaires use both iPhone and Android. There isn’t a single phone choice that billionaires as a group prefer; many use whatever fits their personal habits, business needs, or security setup.

In public reporting and sightings, you can find examples on both sides:

• iPhone users: Warren Buffett, and some public reports/sightings involving Jeff Bezos and Elon Musk.
• Android users: Bill Gates has publicly said he uses Samsung’s Galaxy Z Fold line, and Mark Zuckerberg has been seen using Samsung phones.

The main takeaway is that wealth doesn’t determine the phone platform — personal preference does.