Apple Watch Ultra 4 comes with better battery and upgraded health tracking

Apple Watch Ultra 4 delivers an 84-hour battery in low-power mode, 50 hours for everyday use, and 25 hours in Extended Workout mode, powered by the new S11 chip and upgraded sensor array. It introduces a daily readiness score (0-10), AI-driven health insights, a VO2 Max test, and audio-intelligence notifications for environmental sounds. The titanium finish remains, new band styles appear—including a Hermès Grand H titanium band with a wet-suit-compatible extension—and the device starts at $799.