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iPhone Duo has a secret cooling system hiding inside its hinge — and that's another way it beats Galaxy Z Fold 8

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iPhone Duo has a secret cooling system hiding inside its hinge — and that's another way it beats Galaxy Z Fold 8

The iPhone Duo is arguably the most exciting iPhone Apple has released for a long time, but there are still some secrets that Apple hasn't divulged about its first foldable — one of them has just been revealed in an interview with PCMag.

PCMag spoke to Dan Murray, Apple's vice president of silicon engineering and Banafsheh Barabadi, the company’s senior manager of thermal product design, to discuss the A20 Pro chip. As part of this, the pair confirmed that the foldable comes with some unique hardware to better take advantage of the chip's performance power.

The A20 Pro was specifically designed for all three new iPhones, the iPhone 18 Pro, iPhone 18 Pro Max and iPhone Duo. But because the Duo is foldable, things had to change. One such feature is the addition of a second display engine, which allows for "simultaneous operation of the inner and outer displays." There's also extra support for the under-display camera hidden under the interior screen.

The most interesting thing is how Apple handles the issue of heat on the iPhone Duo. We knew there's a vapor chamber in the phone, which is something the likes of the Samsung Galaxy Z Fold 8 lack. But problems arise when you remember that this is a phone that can double in thickness at a moment's notice.

For that reason, Apple also added a "flexible graphite pipe" through the hinge, to help transfer heat between both halves of the iPhone Duo. That effectively doubles the amount of surface area available for heat dissipation.


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iPhone Duo has a secret cooling system hiding inside its hinge — and that's another way it beats Galaxy Z Fold 8 | TheMorningPulse.fyi