GoKawiilApple Watch Series 12 adds Readiness Score and upgraded health sensors
Apple's Series 12 smartwatch introduces a single-tap hand gesture for navigating Smart Stack widgets alongside existing double-tap and wrist-flick controls. It also debuts a new Health Sensing System with 32 ECG electrodes, ring-arranged photodiodes, and larger LEDs, enabling heart rate readings every five seconds and HRV readings every five minutes, up from every five minutes and two hours respectively on Series 11. The new S11 chip also improves step-tracking accuracy and adds a real-time Steps complication to the watch face.
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The jump in sensor sampling frequency marks one of the biggest health-tracking upgrades in Apple Watch history, giving wearers near-continuous physiological data rather than sparse snapshots. This positions the device more directly as a proactive health-monitoring tool, competing with dedicated fitness and recovery trackers like Whoop and Oura.
- New single-tap gesture joins double-tap and wrist-flick for easier one-handed control
- Health Sensing System takes heart rate readings every 5 seconds and HRV every 5 minutes
- S11 chip improves step tracking accuracy and adds a real-time Steps watch face complication
Apple Watch Series 12 — This is the watch the review is all about—new S11 chip, improved Health Sensing System, and handy one-tap gestures make it a solid upgrade for anyone tracking fitness and health metrics. The Readiness Score and refined ECG sensors give a more complete picture of your body, right on your wrist.
See Apple Watch Series 12 on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: wired.com — Boutayna Chokrane, 2026-09-17
Published there as: “Apple Watch Series 12 Review: Finally, a Readiness Score (2026)”
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