Watch Ultra 3 Features: The ultimate sports and adventure watch has a rugged 49mm titanium case with 100‑metre water resistance and IP6X dust resistance Multi‑day battery life, with up to 42 hours of normal use and up to 72 hours in Low Power Mode Built‑in satellite communications for Emergency SOS. Now you can stay connected and safe off the grid Ultra 3 is an excellent running companion with advanced metrics, training load and precision dual‑frequency GPS One quick press of the Action button gives you precise control over a variety of customisable functions — like starting a workout or turning on the torch Invaluable new health insights — including sleep score and hypertension notifications Safety features including Emergency SOS via satellite, Fall Detection and Crash Detection Specifications: Material and Finish Titanium case, Grade 5 Natural, Black Straps Alpine Loop Light Blue Terra Cotta Black Trail Loop Blue/Bright Blue Green/Neon Black/Charcoal Ocean Band Neon Green Anchor Blue Black Titanium Milanese Loop Natural Black Strap size Alpine Loop Small Strap fits 130–160mm wrists. Medium Strap fits 145–190mm wrists. Large Strap fits 165–210mm wrists. Trail Loop S/M Strap fits 130–180mm wrists. M/L Strap fits 145–220mm wrists. Titanium Milanese Loop Small Strap fits 130-160mm wrists. Medium Strap fits 145-190mm wrists. Large Strap fits 165-210mm wrists. Size and Weight Height: 49mm Width: 44mm Depth: 12mm 422x514 pixels 1,245 sq mm display area Weight (natural): 61.6 grams Weight (black): 61.8 grams Fits 130–210mm wrists Hardware and Buttons Microphones Speaker Customisable Action button Siren/Speaker Antennas (GPS, cellular, satellite) Side button Digital Crown Depth gauge/water temperature sensor/altimeter Controls Customisable Action button Digital Crown with haptic feedback Side button Double tap and wrist flick gestures Siri with on‑device processing Chip S10 chip with 64‑bit dual‑core processor 4-core Neural Engine 64GB capacity Sensors Electrical heart sensor Third-generation optical heart sensor Blood oxygen sensor Temperature sensor Depth gauge Water temperature sensor Compass Always-on altimeter High-g accelerometer High dynamic range gyroscope Ambient light sensor Health and Wellness Blood Oxygen app ECG app Cycle Tracking app with retrospective ovulation estimates Heart Rate app High and low heart rate notifications Irregular rhythm notifications Medications app Mindfulness app with state of mind tracking Noise app Sleep app including sleep stages Sleep score Sleep apnoea notifications Hypertension notifications Display Always‑On Retina display with wide‑angle OLEDs and LTPO3 1Hz refresh Active area (422x514 pixels, 326 pixels per inch) Flat sapphire crystal display Up to 3,000 nits peak brightness 1 nit minimum brightness Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering) Audio Three-microphone array with beamforming and wind noise mitigation Dual speakers Media playback Siren Power and Battery Life Multi‑day battery life, up to 42 hours of normal use Up to 72 hours in Low Power Mode Built-in rechargeable lithium‑ion battery Fast-charge capable Up to 80% charge in about 45 minutes 15 minutes for up to 12 hours of normal use 5 minutes for up to 8 hours of sleep tracking Operating System watchOS watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe and connected. Workouts and Activity Running Custom workouts Customisable Workout Views Training Load / Workout Effort Tracking Heart Rate Zones (customisable) Post‑workout heart rate VO2 max Race Route Pacer Precision Start using Action button Stride Length, Ground Contact Time, Cadence, Power and Vertical Oscillation Automatic track detection Multisport workout Hiking Compass with bearing, incline, elevation and coordinates Custom waypoints Automatically generated waypoints to cellular connectivity Backtrack GPS data Offline maps with custom route creation Elevation alerts Topographic maps for thousands of national and regional parks (US only) Hundreds of curated hikes across all 63 US national parks Siren Cycling Custom workouts Customisable Workout Views Training Load / Workout Effort Tracking Average speed, elevation gained and distance Bluetooth-compatible with power meters Functional Threshold Power (with power meter connection) Live Activity on iPhone Heart Rate Zones (customisable) Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection) Post‑workout heart rate Swimming Custom workouts (pool swim) with haptics to cue the next interval Customisable Workout Views (pool swim, open water swim) Splits and auto sets SWOLF score Automatic stroke and count detection (including kickboard) Water temperature Average pace, total distance, heart rate and lengths Diving Recreational dive to 40m Dive computer app (available on the App Store) Automatic launch at 1m Current and maximum depth duration GPS entry and exit points Depth gauge Water temperature sensor More Workouts Skiing Snowboarding Outdoor Rowing Paddling Golf Walk Elliptical Rowing Machine Stair Stepper HIIT Yoga Functional Strength Training Dance Cooldown Core Training Pilates Tai Chi Wheelchair Kickboxing Multisport and more Safety Satellite connectivity (Emergency SOS, Find My) Emergency SOS International emergency calling Siren Torch Crash Detection Fall Detection Last Emergency Call Availability Waypoint Noise monitoring Backtrack Durability Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:2010 Dust resistance IP6X under IEC 60529 EN13319 recreational scuba diving to 40m (±1m accuracy) Tested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration Connectivity L1 and L5 precision dual‑frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou) 5G and LTE Wi-Fi 4 (802.11n) Support for 2.4GHz and 5GHz Wi‑Fi networks Bluetooth 5.3 Second-generation Ultra Wideband chip NFC: Apple Pay, GymKit Support for Apple Watch For Your Kids Accessibility Built-in accessibility features supporting vision, mobility, hearing and cognitive disabilities. Features include: VoiceOver Zoom On/Off Labels Reduce Transparency Increase Contrast Colour Filters Text Size Bold Text Reduce Motion Hourly Chimes AssistiveTouch Button Click Speed Touch Accommodations Auto-Answer Calls Type to Siri RTT Support Audio Volume Balance Audio Transcription Live Speech Accessibility Shortcut Mono Audio Taptic Time Personal Voice Live Listen Environmental Requirements On-wrist operating temperature: –20° to 55° C (–4° to 130° F) Operating temperature: 0° to 35° C (32° to 95° F) Non-operating storage temperature: –20° to 45° C (–4° to 113° F) Dive operating temperature: 0° to 40° C (32° to 104° F) Relative humidity: 5% to 90% non-condensing Operating altitude: –500 to 9,000 metres (–1,600 to 29,500 feet) Apple Watch and the Environment Materials Apple Watch Ultra 3 is made with 40% recycled content, including: 100% recycled titanium in the case 100% recycled cobalt and 95% recycled lithium in the battery 100% recycled rare earth elements in all magnets 100% recycled gold plating and tin solder in all Apple‑designed printed circuit boards 100% recycled tungsten in the Taptic Engine 80% recycled steel in the speaker and Taptic Engine Energy 100% of manufacturing electricity for Apple Watch Ultra 3 is sourced from renewable energy 100% of expected customer energy use matched with low-carbon electricity Meets California Energy Commission’s energy efficiency standards for battery charger systems Packaging 100% fibre-based packaging Waste No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Programme