Apple Watch Series 12 launches with new health sensors and S11 chip

Apple has released the Apple Watch Series 12, featuring significant hardware and software upgrades. The new model is powered by the S11 chip and runs on watchOS 27. Key technical improvements include a redesigned Health Sensing System utilizing larger, more efficient green LEDs and a new electrical heart sensor, allowing for more frequent heart rate monitoring.

A new Readiness score feature has been introduced, which analyzes sleep, activity, and vital data to provide a daily score indicating physical preparedness. The device also supports Audio Intelligence for enhanced Siri AI voice recognition.

In India, the Series 12 launched on September 18, 2026, with prices starting at Rs 56,900 for the 42mm aluminum GPS model. Premium options include titanium and ceramic finishes. Battery performance tests indicate the device can last over 24 hours on a single charge, with fast-charging capabilities providing up to 12 hours of use from a 15-minute charge.