Apple Watch Ultra launched in 2022 as the definitive adventure watch — titanium case, 49mm display, 60-meter water resistance, and a battery that outlasts anything else Apple makes. The Ultra 3 added satellite messaging and blood pressure trend alerts in 2025. Ultra 4 is the first confirmed major redesign of the line. DigiTimes reported a redesigned chassis in June 2026. TASC — Apple's exclusive sensor supplier for the Ultra line — is ramping production in July 2026 for a September launch. Advanced blood pressure monitoring, clinical-grade rather than trend-only, has been submitted to the FDA.