Apple has announced the Watch Series 12 and Ultra 4, both featuring a new Health Sensing System and S11 chip that deliver what Apple claims is the most accurate heart rate sensing in a wearable. The updates include redesigned photodiodes, more efficient LEDs, and HRV measurements up to 24 times more frequently, with new overnight and daytime vitals views.
Background
Apple Watch remains one of the dominant smartwatches in the market, with continuous improvements in health monitoring features driving upgrades. This release follows Apple's ongoing focus on cardiovascular health and fitness tracking capabilities.
- Source
- Ars Technica
- Published
- Sep 10, 2026 at 02:47 AM
- Score
- 6.0 / 10