iPhone 15 To reach our goal of making products with only recycled and renewable content, we’ve prioritized 15 materials — including cobalt, tungsten, and gold — based on their high environmental and social impacts. These 15 materials account for over 87% of the total mass of the products we ship. In iPhone 15, we’re using: 100% recycled cobalt in the battery, a first for Apple.12 100% recycled t..