The Apple Watch Series 9 has iterative updates, but one key feature might make the upgrade worth it.
Apple Watch Series 9 First Look: Double Tap Gesture, Faster Performance - CNET
Apple Watch Series 9 review: Speeding things up - TheStreet
Apple introduces the advanced new Apple Watch Series 9 - Apple
Double tap for Apple Watch 9 live now in public beta — here's what you can do
Apple Watch Series 9 Review: Double Tap Is Convenient, But Not Essential
Apple Watch Series 9 and Ultra 2 reviews: Double Tap, pink, and Siri responsiveness - 9to5Mac
Apple Watch Series 9 Review
watchOS 10.1 enables Double Tap on Apple Watch Series 9
Apple Watch Series 9 Review: New Tricks Make for a Minor Upgrade - CNET
Apple Watch Series 9 Review: Is Double Tap a Test of the Future?
Apple Watch Series 9 Review: Double Tap Is Convenient, But Not Essential