Ultra 2	Aerospace-grade titanium case Customizable action button Water resistance to 100 meters* IP6X certified dust resistance 64GB capacity
Display	Always-on LTPO OLED Retina display
Dial	New Maritime dial Exclusive regatta timer Exclusive Hermès dials, excluding Lucky Horse (available on Apple Watch Hermès Ultra only)
Connectivity	Cellular** GPS/GNSS
Features	Sleep apnea detection Vitals app Training upload feature Tides app Tap to Cash On-device Siri Double-tap iPhone Precision Find Blood Oxygen app ECG app Temperature detection Menstrual cycle tracking Crash and fall detection SOS feature International roaming International emergency calling Workout & Activity app Sleep tracking Compass Always-on altimeter Gyroscope Apple Pay GymKit
Audio & Sound	Speaker Micro
Sensors	Accelerometer (up to 256 g with fall detection) Optical heart rate sensor Heart rate Ambient light sensor
Compatibility and required system configuration	Apple Watch Hermès Ultra 2 requires an iPhone XS (or later) with iOS 18 (or later). * Apple Watch Hermès Ultra 2 is water resistant to 100 meters (330 feet) under ISO standard 22810. It can be used for recreational scuba diving (by downloading a third-party app from the App Store) to depths of 40 meters (130 feet) and high-speed water sports. ** Cellular data plan required. Contact your carrier for details. International roaming not included. See apple.com/watch/cellular for participating mobile carriers and eligibility. Some features are not available in certain geographic areas and languages. Apple Watch and its accessories contain magnets that may interfere with medical devices.
Dimensions	Case width: 44 mm Case height: 49 mm Band: Wrist size from 150 mm to 190 mm
Materials	Titanium/nylon