iOS 27 is packed with new features for Apple Wallet, Messages, Notes, and other system apps—including Calendar. Here’s everything new for Apple’s Calendar app in iOS 27.

Natural language input for events and reminders: Calendar adds a feature in iOS 27 that’s been on my wishlist for years: natural language input. Apple calls this ‘Smart Event Details,’ and it’s powered by Apple Intelligence. You can type in natural language when creating or editing an event, and watch the event details automatically fill in based on what you type.

Design updates: Apple has updated Calendar’s design in iOS 27 in two main places: Event details view and Event creation and editing. When you tap an event, it now pops up in a card overlay with a fresh design. Event options have been reorganized and given icons to make them visually pop.

Show as Busy/Free option for iCloud calendars: Until iOS 27, that option never existed for iCloud calendars. iOS 27 finally remedies the oversight, offering a free/busy option for iCloud events like you would get for events from Google and other third-party calendar providers. Extra-large widgets: iOS 27 lets you make Home Screen and Today widgets bigger than ever. Calendar supports two extra-large widgets: ‘List’ and ‘Up Next’. Siri AI upgrades: Siri gains onscreen awareness, understands your personal context, and is overall more intelligent and capable than ever before.