Apple's new $799 Watch Ultra 4 pairs a redesigned sensor array—32 electrodes arranged like flower petals—with the new S11 chip, enabling heart-rate readings every 5 seconds and HRV checks every 5 minutes, far more frequent than prior models. That increased sampling powers a new Readiness score that updates throughout the day rather than relying mainly on overnight data, plus a Daytime toggle in the Vitals app to view daytime alongside nighttime metrics.
cnet.com
· 2026-09-10
Apple introduced the Apple Watch Series 12 and Apple Watch Ultra 4 at its 'Surprise and shine' event, adding upgraded health sensors, audio transcription and summary features, and a new ceramic case option for the Series 12. Both models retain the same starting prices as their predecessors, with the Series 12 at $399 and the Ultra 4 at $799.
theverge.com
· 2026-09-09
Apple unveiled the Apple Watch Ultra 4 at its 'Surprise and shine' event, keeping the rugged design of last year's model but swapping in the new S11 processor and an upgraded ECG and heart-rate sensor. The new sensor takes readings up to 60 times more often, checking heart rate every five seconds and heart rate variability every five minutes.
theverge.com
· 2026-09-09
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