Apple Watch Ultra 4

The Apple Watch Ultra 4, available starting September 18th, features up to 45 hours of battery life for workout tracking and up to 50 hours for normal use, along with a redesigned Health Sensing System for more accurate heart rate monitoring and new health metrics like personal readiness score and Health Age. The watch includes satellite communications for off-grid connectivity, a rugged titanium case with sapphire crystal display rated for extreme conditions, and upcoming Siri AI capabilities launching in late 2026. It's available in natural and black titanium finishes with customizable bands and watch faces.