Apple Watch Series 12, Ultra 4 Add 3 New Health Complications as Siri Features Expand
Updated
Updated · 9to5Mac · Oct 5
Apple Watch Series 12, Ultra 4 Add 3 New Health Complications as Siri Features Expand
3 articles · Updated · 9to5Mac · Oct 5
Summary
Series 12 and Ultra 4 can show live heart rate, step count and a readiness score directly on the watch face, giving the new models their clearest day-to-day upgrade.
Automatic music recognition is also available through Smart Stack’s Music Detection setting, letting the watch identify songs without a Siri request or a manual Shazam tap.
Readiness needs more setup than a face complication: Apple says users must complete Health Details, enable Sleep and overnight vitals, and wear the watch to bed for at least seven nights.
The new hardware also expands the Vitals app with daytime readings based on heart rate and recovery HRV, while overnight vitals still include respiratory rate and wrist temperature.
watchOS 27 brings Siri Modular to all compatible Apple Watches, but Series 12 and Ultra 4 get more complication options, with Siri Recap and Live Rewind still to come.