iPhone Duo 2 leak: Pro-grade camera, silicon-carbon battery and under-display Face ID

Apple's foldable iPhone Duo 2 is expected in September 2027, timed to the original iPhone's 20th anniversary. Leaks point to a Pro-level camera with a mechanical periscope, a silicon-carbon battery rated for over 30 hours of playback, and a compact infrared Face ID module behind the outer display. Apple is also reportedly developing the Duo SE and a 9-inch Duo Max.

• iPhone Duo 2 launch expected in September 2027
• Silicon-carbon battery promises over 30 hours of playback
• Mechanical periscope adds optical zoom without extra bulk
• Duo SE and 9-inch Duo Max with stylus also in development