Seven years after Samsung got there first, Apple has finally folded.
The iPhone Duo opens into a near-tablet and starts at $2,000, making it the most expensive phone the company has ever made.
NEW: Apple just launched Apple Watch Series 12 with its biggest health sensor upgrade in years.
It now checks your heart far more often throughout the day and uses that data to tell you how ready your body is to train or recover.
-Measures heart rate every 5 seconds all day
NEW: Apple just unveiled its first foldable iPhone.
iPhone Duo folds down to a compact 5.4-inch phone, then opens into a 7.6-inch display with new camera tricks built around the second screen.
-Touch ID built into the side button
-Two apps can run side by side for the first