IPhone 17 misses two Siri AI features in iOS 27

The iPhone 17 will miss two new Siri AI features in iOS 27 due to hardware limits. Apple revealed at WWDC 2026 that on-device Siri models require at least 12GB of RAM. Despite its flagship status, the iPhone 17 does not meet this threshold, even as it was the top-selling smartphone in Q1 2026. The two missing features are a more expressive Siri voice and an upgraded dictation engine. Both rely on RAM headroom, which the iPhone 17 lacks. iOS 27 will roll out later this year to iPhone 11 and newer, including the iPhone SE (2nd generation and later); most Siri features in iOS 27 will remain on the 17, though future capabilities may be memory-gated.