The newest Apple Watch is the Apple Watch Series 9, which was introduced on September 12, 2023. It features the new S9 SiP, which increases performance and capabilities, and a double tap gesture. The display system in Series 9 is also more advanced, boosting the maximum brightness up to 2000 nits, which is double that of the Series 8. The Apple Watch Series 9 is available in 41mm or 45mm aluminum or stainless steel cases with a variety of band styles, and is available with cellular. It runs watchOS 10, which delivers redesigned apps, new watch faces, new cycling and hiking features, and tools to support mental health. Customers can choose a carbon neutral option of any Apple Watch for the first time, representing a significant milestone toward Apple 2030: Apple’s plan to be carbon neutral across its entire business, manufacturing supply chain, and product life cycle by 2030. The Apple Watch Series 9 can be ordered online and is available for purchase as of September 22, 2023.