| Material & Finishes |
- • Grade 5 Titanium case
- • Finishes: Natural, Black
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| Dimensions & Weight |
- • Height: 49 mm
- • Width: 44 mm
- • Depth: 12 mm
- • Weight: 63.0 g (Natural), 63.1 g (Black)
- • Band Fit: 130–210 mm wrists
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| Display |
- • Always-On Retina display with wide-angle OLEDs and LTPO3 (1 Hz refresh)
- • Resolution: 422 × 514 pixels (326 ppi, 1,245 sq mm display area)
- • Brightness: 3,000 nits peak / 1 nit minimum
- • Cover Glass: Flat sapphire crystal
- • Night Mode for Ultra faces (Modular Ultra, Wayfinder, Orienteering)
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| Processor & Storage |
- • Chip: S11 SiP with 64-bit dual-core processor
- • Neural Engine: 4-core Neural Engine
- • Capacity: 64 GB
- • Audio Intelligence: Live Rewind, Siri Recap, Shazam, Sound Recognition
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| Apple Intelligence & Controls |
- • Siri AI powered by Apple Intelligence
- • Customizable Action button
- • Digital Crown with haptic feedback
- • Side button
- • Single tap, double tap, and wrist flick gestures
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| Sensors |
- • Health Sensing System (2nd-gen electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, temperature sensor)
- • Depth gauge (±1 m accuracy)
- • Water temperature sensor
- • Always-on altimeter
- • Compass
- • High-g accelerometer
- • High dynamic range gyroscope
- • Ambient light sensor
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| Health & Wellness |
- • Readiness app & Vitals app (HR, respiratory rate, wrist temperature, sleep duration, HRV)
- • ECG app & Blood Oxygen app
- • High/Low heart rate & Irregular rhythm notifications
- • Recovery HRV & High-frequency background HR tracking
- • Advanced Cycle Tracking (ovulation estimates, perimenopause/menopause support)
- • Sleep app (stages, sleep score, sleep apnea notifications)
- • Hypertension notifications
- • Medications app & Mindfulness app (State of Mind)
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| Safety Features |
- • Satellite communications (Emergency SOS, Messages, Find My)
- • Emergency SOS & International emergency calling
- • Fall Detection & Crash Detection
- • Built-in 86-decibel Siren (audible up to 600 ft / 180 m)
- • Backtrack, Check In, Flashlight, Noise monitoring, Last Emergency Call Waypoint
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| Audio & Microphones |
- • Three-microphone array with beamforming and wind noise mitigation
- • Dual speakers with media playback support
- • Integrated Siren
|
| Battery & Power |
- • Normal Use: Up to 50 hours
- • Low Power Mode: Up to 84 hours
- • Outdoor Workout: Up to 18 hours (up to 25h Extended / up to 45h Max Extended)
- • Fast Charging: 0–80% in ~45 minutes; 15 min for 18h normal use; 5 min for 10h sleep tracking
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| Connectivity |
- • 5G RedCap & LTE (Model A3579)
- • Wi-Fi 4 (802.11n) 2.4 GHz and 5 GHz
- • Bluetooth 5.3
- • Second-generation Ultra Wideband (UWB) chip
- • Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou)
- • Apple Pay, GymKit, International Roaming, Apple Watch For Your Kids
|
| Durability & Standards |
- • Water Resistance: 100 m under ISO standard 22810:2010
- • Dive Rating: EN13319 certified for recreational scuba to 40 m
- • Dust Resistance: IP6X rated under IEC 60529
- • Military Standard: Tested to MIL-STD 810H (altitude, extreme temperatures, immersion, freeze/thaw, shock, vibration)
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| Environmental Limits |
- • On-Wrist Operating Temp: -4° to 130° F (-20° to 55° C)
- • Storage Temp: -4° to 113° F (-20° to 45° C)
- • Dive Operating Temp: 32° to 104° F (0° to 40° C)
- • Operating Altitude: -1,600 ft to 29,500 ft (-500 m to 9,000 m)
- • Relative Humidity: 5% to 90% noncondensing
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| Sustainability & Materials |
- • 45% total recycled content (100% recycled titanium case, 100% recycled cobalt, 95% recycled lithium in battery, 100% recycled gold & tin in PCBs)
- • 100% fiber-based packaging
- • 100% renewable electricity used for manufacturing
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| Compatibility |
• iPhone 11 or later (including iPhone SE 2nd generation or later) running iOS 27 or later |
| In the Box |
- • Apple Watch Ultra 4
- • Band / Loop
- • Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)
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