watchOS 27 Available Now: Siri AI, Dynamic App Grid, and Liquid Glass Arrive on Apple Watch

watchOS 27 is available to download now on Apple Watch Series 9 and later, Ultra 2 and later, and Apple Watch SE 3. The update rolls out alongside iOS 27, iPadOS 27, and macOS 27 on Monday, September 14.

What's New in watchOS 27

• Siri AI: A fully on-device Siri powered by Apple Intelligence handles back-and-forth conversations, accesses personal context, and syncs conversations across devices — no cloud processing required
• Dynamic App Grid: The static honeycomb grid is gone, replaced by an adaptive layout that surfaces your most-used apps based on time of day and context
• Liquid Glass: A new visual design language with uniform refraction and improved contrast for better readability in all lighting conditions
• Tap gesture: Tap your index finger and thumb together to select widgets in the Smart Stack
• Perimenopause tracking: Cycle Tracking now detects pattern irregularities and supports menopause symptom logging
• Battery optimization: New settings panel recommends configuration changes based on your usage patterns
• Unified Find My: Device, people, and item tracking combined into a single app

What's Been Removed

Walkie-Talkie and the double-click Digital Crown shortcut are gone. If you relied on either, plan alternatives before updating.

How to Update

Open the Watch app on your iPhone, go to General → Software Update, and tap Download and Install. Ensure your Apple Watch has at least 50% battery and is on its charger during the update. For a complete breakdown, read our watchOS 27 guide. Check current Apple Watch prices if you're looking to upgrade your hardware too.