New Delhi, Sept. 10 -- Apple has announced health upgrades covering heart monitoring, daily recovery and longer-term wellbeing. Its new Health Sensing System arrives on Apple Watch Series 12 and Ultra 4. A redesigned Health app will add personalised insights, movement checks and expanded cycle tracking.

New optical and electrical sensors support more frequent heart measurements. Larger, efficient green lights help measure heart rate every five seconds throughout the day.

Apple says this also improves the accuracy of the Exercise and Move rings. Updated heart screens and watch-face shortcuts show current readings.

Apple claims leading accuracy following comparisons involving over 1,000 participants from different backgrounds. This is th...