GoKawiilApple details how iPhone Duo's hinge helps cool the A20 Pro chip
Apple executives Dan Murray and Banafsheh Barabadi described to PCMag how the iPhone Duo's foldable design required new thermal engineering, including a flexible graphite pipe built into the hinge and a new 'metal over foam' material that links the A20 Pro chip to its vapor chamber. The A20 Pro, Apple's first 2nm iPhone chip, also gets a second display engine in the Duo variant to run both screens at once and support a FaceTime camera placed behind the inner display.
GoKawiil's interpretation of the reporting above, not reported fact.
The disclosure suggests Apple had to solve unusual heat-dissipation problems specific to folding hardware, where traditional cooling layouts don't fit around a hinge. Detailing months of material development on 'metal over foam' indicates how much engineering effort went into making a foldable iPhone viable, which could inform how other manufacturers or future Apple foldables approach thermal design.
- iPhone Duo's hinge contains a flexible graphite pipe aiding cooling
- A20 Pro chip uses new 'metal over foam' material for heat transfer
- Duo-specific chip variant adds a second display engine for dual screens
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See Apple iPhone 18 Pro on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: 9to5mac.com — Marcus Mendes, 2026-10-13
Published there as: “The iPhone Duo’s cooling system hides a clever trick inside its hinge”
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