Overview DESCRIPTION The Apple Watch Ultra 3 is designed for adventurers, athletes, and anyone who needs the ultimate in performance, durability, and safety. With multi-day battery life, advanced health sensors, precision GPS, and robust construction, it’s built to withstand the toughest conditions, whether you’re scaling a mountain or diving into the depths. Combined with a stunning Always-On Retina display and advanced features like Crash Detection, Emergency SOS, and Precision GPS, the Ultra 2 is the ultimate wearable for exploring the world with confidence. FEATURE Apple Watch Ultra 3 – Features Size and Weight Height: 49 mm Width: 44 mm Depth: 14.4 mm Display: 410 × 502 pixels, 1,185 mm² display area Weight: 61.4 g (Natural Titanium) Fits wrists: 130–210 mm Controls Customizable Action Button Digital Crown with haptic feedback Side Button Double Tap Gesture support Siri with on-device processing Chip S9 SiP with 64-bit dual-core processor 4-core Neural Engine 64GB Storage Capacity Sensors Electrical Heart Sensor (ECG) Third-Generation Optical Heart Sensor Wrist Temperature Sensor Depth Gauge (±1 m accuracy) Water Temperature Sensor Compass with waypoints & backtrack Always-On Altimeter High-G Accelerometer (Crash Detection support) High Dynamic Range Gyroscope Ambient Light Sensor Health and Wellness Blood Oxygen App ECG App Cycle Tracking 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 with sleep stage tracking Display Always-On Retina LTPO OLED Display Flat Sapphire Crystal Display Up to 3,000 nits maximum brightness 1 nit minimum brightness 326 pixels per inch Night Mode with Modular Ultra and Wayfinder watch faces Audio Three-Microphone Array with beamforming and wind noise reduction Dual Speakers for louder, clearer sound Media Playback and Siri responses Power and Battery Life Up to 36 hours of normal use Up to 72 hours in Low Power Mode Built-in rechargeable lithium-ion battery Fast-Charge capable: up to 80% in about 1 hour Operating System watchOS 11 – advanced apps and features for fitness, health, safety, and everyday use Workouts and Activity Tracking Running: Custom workouts, precision start with Action Button, pace tracking, multisport, race route Hiking: Compass with bearing, elevation, offline topographic maps, curated hikes, elevation alerts, backtrack Cycling: Speed, distance, cadence, power zones, FTP estimates, live iPhone activity view Swimming: Pool and open-water swim, stroke detection, kickboard tracking, SWOLF score Diving: Recreational dives up to 40m with Depth app and EN13319-certified dive computer features Other Workouts: Rowing, Yoga, HIIT, Dance, Pilates, Golf, Skiing, Snowboarding, and more Safety Features Emergency SOS International Emergency Calling Crash Detection Fall Detection Built-in 86-decibel Siren for emergencies Last Emergency Call Availability Waypoint Noise Monitoring Backtrack GPS navigation history Durability Water Resistance: 100m (ISO standard 22810:2010) EN13319 Certified – suitable for scuba diving to 40m Dust Resistance: IP6X MIL-STD 810H Tested: altitude, temperature, shock, vibration, immersion, and freeze resistance Connectivity L1 L5 Precision Dual-Frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou) LTE and UMTS (GPS Cellular models) Wi-Fi 4 (802.11n) Bluetooth 5.3 Second-Generation Ultra Wideband (UWB) chip GymKit support for gym equipment integration International Roaming support