WatchOS 27 Siri Fix: New Apple Watch May Be Required

Apple’s WatchOS 27 introduces “Siri AI,” a revamped assistant featuring improved contextual awareness and natural language support. While the update brings significant utility, it is limited to Apple Watch Series 9 and newer, Ultra 2 and newer, and the SE 3, effectively ending the update cycle for many current owners.

Why is Apple’s hardware cutoff for WatchOS 27 so aggressive?

For many Apple Watch users, the latest software update arrives with a catch: their device might not support it. According to the WWDC keynote, WatchOS 27 will only be available on the Series 9 and newer, the Ultra 2 and newer, and the SE 3.

This represents a much sharper divide than in previous years. Apple is officially dropping support for the Series 6, 7, and 8, the original Ultra, and the second-generation SE. If you purchased your Apple Watch before 2024, there is a high probability you have reached the end of your update road.

This shift is notable because Apple hasn’t traditionally used hardware limitations to cut off entire generations of watches. In previous years, older models still received the OS update, even if they lacked the most advanced AI features. This year, Apple appears to have tied the entire update to a single compatibility wall, even though some new features may not strictly require the advanced hardware used for Siri AI.

How does Siri AI change the wearable experience?

The centerpiece of the update is “Siri AI.” This revamped assistant moves beyond simply providing web links. According to Apple’s presentation, the new Siri offers better contextual awareness and the ability to pull information from other apps on the fly. This addresses a long-standing frustration where Siri on the wrist would often default to showing a list of websites rather than answering a question directly.

This development closes a gap that has been widening between Apple and its competitors. For those who have used Android-based watches running Wear OS, the difference in utility is stark. Google brought Gemini to the wrist last year, and the ability to use a sophisticated, hands-free AI on a device with limited screen real estate changes how a smartwatch is actually used.

Apple is also changing how you access your apps. By pressing the Digital Crown, users can now access a dynamic grid featuring five Siri-suggested apps. This grid prioritizes apps you use frequently or most recently, placing the new Siri app front and center to replace the old method of scrolling through alphabetical lists.

Comparison: Siri AI vs. Wear OS Assistants

What new health and fitness features are coming?

Apple is leaning heavily into specialized health tracking. The Apple Watch will now flag menstrual cycle irregularities that may signal perimenopause. This feature helps users identify shifting hormone levels that cause cycle changes. While much of this data is self-reported, the watch can now provide retrospective ovulation estimates by using wrist temperature data collected overnight.

To support these changes, Apple is launching a new Fitness Plus program called “Strong Through Menopause.” Additionally, a new episode of “Time to Walk” featuring actress Busy Philipps will discuss her own perimenopause journey.

Fitness enthusiasts will also see updates to “Workout Buddy.” This in-ear motivational coach is now available in Spanish and can function without an iPhone nearby, provided you are using a Bluetooth headset. It also now incorporates more fitness data into its coaching nudges.

How can users control the Smart Stack more easily?

Navigating a small screen can be difficult, so Apple is introducing a one-handed gesture system for the Smart Stack. Users can now double-tap their index finger and thumb to scroll through widgets, single-tap to select a widget, and flick their wrist to return to the watch face.

The Smart Stack is also becoming more proactive. It will suggest relevant widgets based on your location and time of day, such as:

• Maps: A parked-car reminder when you leave your vehicle.
• Contacts: Birthday message prompts for close friends.
• Entertainment: Theater Mode suggestions when you arrive at a concert or movie theater.

Other utility updates include the consolidation of Find Devices, Find Items, and Find People into a single “Find My” app. In the Wallet app, users can now pin transit cards directly to the Smart Stack and view their balances from their wrist.

What is the biggest missing piece in WatchOS 27?

Despite the influx of AI and health features, one major topic was completely absent from the keynote: battery life. Given that many of the new features—such as sleep tracking, overnight temperature monitoring, and continuous health insights—require the watch to be worn 24/7, battery efficiency remains a critical concern for users.

The lack of mention regarding efficiency or battery improvements could be seen as a missed opportunity, especially as users weigh whether the new AI capabilities justify the potential drain on their device’s longevity.