Tech giant Apples CEO Tim Cook has revealed why the company releases a new phone each year. The annual event is witnessed by billions of people around the world.Speaking from Apples data center in Denmark, he insisted that the constant reinvention is a great thing, and explained how they can keep the company more sustainable despite the possible regularity of new phones being replaced.Talking to Tim Cook, “I think having an iPhone every year for those people that want is a great thing. And what we do is allow people to trade in their phones. And so, we resell that phone if its still working. And if its not working, we have got ways of disassembling it and taking the materials to make a new iPhone out of”.Apple launches iPhone 15 Apple unveiled its latest iPhone 15 at the Wonderlust event on September 12. The new model combines a USB type C charging port, the first one in the iPhone. The move came after requirements from European regulators to use USB type C and allows to use of the same charging cables which is already being used for iPads and Macs.The iPhone 15 Pro and its other variants have a brighter display, and a 48-megapixel camera and are made up of 100 percent recycled cobalt in the batteries.Previous models over the yearsApple has released eight new phone models over the last five years – the XS and XS Max (September 2018), XR (2018), 11 series (2019), SE 2 (2020), 12 series (2020), 13 series (2021), SE 3 (2022), 14 series (2022) and 15 series (September 2023).