Apple's next-generation iPhones could adopt 7000 Series aluminum used for the Apple Watch Sport, according to Taiwan's Economic Daily News. The so-called "iPhone 6s" and "iPhone 6s Plus" would likely use Apple's custom Series 7000 aluminum alloy, which is designed to be 60% stronger than most aluminum, and one-third the density of stainless steel, while still maintaining a light weight.
Apple elaborated in more detail about the Series 7000 aluminum it used for the Apple Watch Sport on its website, noting that each casing is machined, polished and blasted with microscopic zirconia beads to achieve a consistent satin texture found on each Apple Watch. An additional anodized outer layer helps protect against scratches and corrosion, while the anodizing process also makes possible alternative colors like Space Gray.
For Apple Watch Sport, we started with 7000 Series aluminum — the same used in competition bicycles. We altered it to create a new alloy that’s just as light, yet even more durable — it’s 60 percent stronger than most aluminum, and one-third the density of stainless steel. It has a bright, lustrous colour and a uniform structure free of defects and impurities. Each case is machined and polished, then blasted with microscopic zirconia beads to achieve a consistent, satin texture. A special anodizing process creates a hard, clear outer layer that helps protect against scratches and corrosion.
Economic Daily News has a mixed track record at reporting on Apple's upcoming plans, and the translated report does not offer many further details, so this rumor should be treated with a proverbial grain of salt. Nevertheless, it is common for Apple to introduce new features on one device before expanding to others. Force Touch, for example, was exclusive to the Apple Watch before making its way to MacBooks, and the technology is also rumored to be included in the next iPhone.
