The Watch Series 4, released in 2018, marked a major redesign of the company's smartwatch lineup that had first launched in 2015. The refreshed design offered a larger display with more rounded corners and thinner bezels. The 40mm and 44mm Apple Watch Series 4 in both aluminum and stainless steel variants have now been classified as vintage.

Apple has classified all variants of the Apple Watch Series 4 as vintage products, including the aluminum and stainless steel versions in 40mm and 44mm sizes

The parts needed to repair a vintage Apple device may no longer be in stock at Apple Stores or third-party shops.