Apple Watch Series 12 Adds Continuous Heart Rate Checks

Apple has released the Series 12 watch, featuring its most accurate heart rate sensing to date. The device now performs background heart rate readings every five seconds, a significant step up from previous models that relied on less frequent checks. According to techbuzzireland.com, this upgrade aims to provide deeper insights into stress, recovery, and overall cardiovascular health.

However, the headline feature comes with a trade-off. The new Siri AI capabilities, which allow for natural conversation and audio summarization, are currently rolling out only in English. Furthermore, Apple warns that usage limits may apply to these AI features, meaning power users might find their daily interactions restricted compared to the watch's basic health tracking functions.

Health metrics become more frequent

The primary change in Series 12 is the frequency of its health data collection. The watch now measures heart rate variability as often as every five minutes to offer insights into stress and recovery. This continuous monitoring helps users understand how their body responds to daily activities, providing a more granular picture of their physical state than earlier generations.

In addition to heart data, the device includes a daily sleep score and menstrual cycle tracking. The Vitals app consolidates overnight metrics, allowing users to review their blood oxygen levels and readiness for the day. Apple positions this as a way to determine when to rest and when to push for physical activity, creating a more holistic view of daily well-being.

AI features face language limits

The integration of Siri AI is the second major update, enabling users to brainstorm ideas and engage in back-and-forth conversations using only their voice. Audio Intelligence features, such as Live Rewind and Siri Recap, promise to summarize missed conversations. However, these tools are not yet universally available, as the English rollout is still in progress and other languages are not yet supported.

Battery life remains standard

Despite the increased processing power required for frequent health checks and AI tasks, Apple maintains the standard 24-hour battery life for normal use. The watch supports fast charging, delivering up to 12 hours of power from just 15 minutes on the charger. This consistency in battery performance ensures that the new features do not significantly reduce the device's usability throughout a typical day.