Custom Apple silicon makes Apple Watch Series 9 more capable, intuitive, and faster. The new dual-core CPU has 5.6 billion transistors — 60 percent more than the S8 chip. A new four-core Neural Engine processes machine learning tasks up to two times faster. It enables a number of innovations, including a new gesture — double tap. Gestures make Apple Watch even easier to use anytime, especially when your hands are full. Just double tap your index finger and thumb together to answer a call, open a notification, play and pause music, and more. The advanced display system in Series 9 boosts the maximum brightness up to 2000 nits — double Series 8 — so it’s easier to read in full sun. It’s also better in low‑light situations, like a movie theater, because it dims to just 1 nit. The watchOS 10 update brings more to your screen than ever before. Virtually every app has been totally redesigned to give you more information at a glance. From any watch face, simply turn the Digital Crown to reveal the Smart Stack with widgets for relevant and timely information. And now with insights for mental and vision health, you can keep track of your body and mind — right from your wrist. Apple Watch keeps you connected to the people and things that you care about, right from your wrist. And with a cellular plan, you can do it all without your iPhone nearby.9