Apple Watch Ultra 4

Apple Watch Ultra 4 – Features

Size and Weight

• Height: 49 mm
• Width: 44 mm
• Depth: 12 mm
• Display: 422 × 514 pixels, 1,245 mm² display area
• Weight: 63.0 g (Natural Titanium), 63.1 g (Black Titanium)
• Fits wrists: 130–210 mm
• Case: Grade 5 Titanium, available in Natural and Black

Controls

• Customisable Action Button
• Digital Crown with haptic feedback
• Side Button
• Single Tap, Double Tap and Wrist Flick gestures
• Siri powered by Apple Intelligence
• Precision Finding for iPhone

Chip

• S11 chip with 64-bit dual-core processor
• 4-core Neural Engine
• 64GB Storage Capacity
• Audio Intelligence with features including Live Rewind, Siri Recap, Shazam and Sound Recognition

Sensors

• Health Sensing System
• Third-generation Electrical Heart Sensor
• Always-On 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
• Heart Rate App
• High and Low Heart Rate Notifications
• Irregular Rhythm Notifications
• Recovery HRV
• High-Frequency Background Heart Rate Tracking
• Readiness App with personal readiness score
• Vitals App with heart rate, respiratory rate, wrist temperature, blood oxygen, sleep duration and HRV
• Advanced Cycle Tracking with fertile window and retrospective ovulation estimates
• Perimenopause and menopause support
• Medications App
• Mindfulness App with state of mind tracking
• Noise App
• Sleep App with sleep stage tracking
• Sleep Score
• Sleep Apnoea Notifications

Display

• Always-On Retina Display with Wide-Angle OLED and LTPO3
• 1Hz refresh rate
• Flat Sapphire Crystal Display
• 422 × 514 pixels
• 326 pixels per inch
• Up to 3,000 nits maximum brightness
• 1 nit minimum brightness
• Night Mode with Modular Ultra, Wayfinder and Orienteering watch faces

Audio

• Three-Microphone Array with beamforming and wind noise mitigation
• Dual Speakers
• Media Playback
• Built-in Siren

Power and Battery Life

• Up to 50 hours of normal use
• Up to 84 hours in Low Power Mode
• Up to 18 hours of outdoor workout
• Up to 25 hours of Extended Workout
• Up to 45 hours of Max Extended Workout
• Built-in rechargeable lithium-ion battery
• Fast-Charge capable
• Up to 80% charge in about 45 minutes
• 15 minutes of charging provides up to 18 hours of normal use
• 5 minutes of charging provides up to 10 hours of sleep tracking

Operating System

• watchOS – advanced apps and features designed to keep you active, healthy, safe and connected

Workouts and Activity Tracking

• Running: Custom workouts, customisable workout views, Training Load, Heart Rate Zones, VO₂ max, Race Route, Pacer, Precision Start with Action Button, cadence, stride length, ground contact time, vertical oscillation and running power
• Hiking: Compass with bearing, incline, elevation and coordinates, custom waypoints, Backtrack GPS data, offline maps with custom route creation, elevation alerts and Siren
• Cycling: Speed, distance, elevation, cadence, power zones, Functional Threshold Power with compatible power meters, live iPhone activity view and Heart Rate Zones
• Swimming: Pool and open-water swimming, splits, auto sets, SWOLF score, automatic stroke and count detection, kickboard tracking, water temperature, pace, distance, heart rate and laps
• Diving: Recreational diving up to 40m, Dive Computer app, automatic launch at 1m, current and maximum depth, dive duration, GPS entry and exit points, depth gauge and water temperature
• Other Workouts: Skiing, Snowboarding and more

Safety Features

• Emergency SOS
• International Emergency Calling
• Crash Detection
• Fall Detection
• Built-in Siren
• Noise Monitoring
• Backtrack GPS navigation
• Emergency features designed for use in demanding environments

Durability

• Water Resistance: 100m (ISO standard 22810:2010)
• Suitable for swimming, snorkelling, scuba diving and high-speed water sports
• EN13319 certified for recreational scuba diving to 40m
• Depth gauge accuracy: ±1m
• Dust Resistance: IP6X
• MIL-STD 810H tested for altitude, high and low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, shock and vibration

Connectivity

• Precision Dual-Frequency GPS
• GPS, Galileo, QZSS and BeiDou
• Wi-Fi 4 (802.11n)
• Support for 2.4GHz and 5GHz Wi-Fi networks
• Bluetooth 5.3
• Second-Generation Ultra Wideband chip
• 5G-capable cellular connectivity
• LTE connectivity
• International Roaming support
• GymKit support
• Apple Watch For Your Kids support
• Precision Finding for iPhone

Compatibility

• Requires iPhone 11 or later
• Requires iOS 27 or later
• Apple Watch is compatible with iPhone only