In a major step towards its 2030 carbon neutrality goal, Apple is reportedly transitioning from titanium to aluminium for the iPhone 17 Pro Max frame—slashing its carbon footprint by 67%, according to a materials science report.
While titanium boasts a superior 6:1 strength-to-weight ratio, aluminium’s 4:1 ratio comes with significantly higher recyclability and better thermal conductivity—237 W/m·K compared to glass’s 0.6 W/m·K. This enables more efficient heat dissipation, particularly in the device’s top portion where the processor and camera generate the most heat.
The move is aimed at delivering consistent performance, especially during intensive tasks, positioning the Pro Max as Apple’s environmentally conscious flagship. The switch also trims the phone’s weight by 10–15 grams, opening room for larger batteries and upgraded camera systems.
Though rumours suggest the upcoming iPhone 17 Air may retain partial titanium to appeal to aspirational buyers, Apple is clearly prioritizing sustainability over marginal performance gains with the Pro Max. This pivot could pressure competitors to follow suit, but most Android manufacturers already integrate recycled aluminium alloys and hybrid materials within a faster innovation cycle.
Apple’s design philosophy with the iPhone 17 Pro Max reflects a shift from flashy upgrades to long-term environmental responsibility. Rather than chasing exotic materials, the company is doubling down on proven, sustainable engineering to balance performance with eco-conscious innovation.