Beyond raw speed, iOS 27 offers a long list of Apple Intelligence upgrades. 9to5Mac counted more than 20 additions, including a rebuilt Siri and smarter system apps.

AI-powered Siri gains broader world-knowledge, personalized context across Messages, Mail, Calendar, Notes, and Reminders, on-screen awareness, cross-app actions, a dedicated Siri app that includes iCloud conversation history, word processing assistance via Write with Siri, Visual Intelligence upgrades, and more expressive voices on supported devices.