Product Description

Apple Watch Ultra 4 – Official Technical Specifications

Design & Build

Apple Watch Ultra 4 is built for extreme performance, outdoor adventures, and everyday durability. It features a rugged Grade 5 titanium case with aerospace-grade construction and a flat sapphire crystal display for enhanced protection.

Finishes: Natural Titanium, Black Titanium
Case Material: Grade 5 Titanium
Display Glass: Flat Sapphire Crystal
Wrist Compatibility: 130–210mm

Size & Weight

Height: 49mm
Width: 44mm
Depth: 12mm
Weight: 63.0g Natural / 63.1g Black

Display

Apple Watch Ultra 4 features an Always-On Retina display with wide-angle OLED technology and LTPO3 for excellent visibility and power efficiency.

Display Type: Always-On Retina OLED
Resolution: 422 × 514 pixels
Pixel Density: 326 ppi
Display Area: 1,245 sq mm
Refresh Rate: 1Hz
Peak Brightness: 3,000 nits
Minimum Brightness: 1 nit
Display Protection: Flat Sapphire Crystal
Night Mode: Supported

Performance

Powered by the new S11 chip, Apple Watch Ultra 4 delivers faster performance, improved efficiency, and advanced on-device intelligence.

Chip: S11 SiP
CPU: 64-bit dual-core processor
Neural Engine: 4-core Neural Engine
Storage: 64GB
AI: Apple Intelligence and Siri AI
Audio Intelligence: Live Rewind, Siri Recap, Shazam, and Sound Recognition

Health & Fitness

Ultra 4 introduces an advanced Health Sensing System designed for more accurate and frequent health monitoring.

Features include:

• Third-generation electrical heart sensor
• Always-On optical heart sensor
• Blood oxygen sensor
• Temperature sensor
• ECG
• Heart rate monitoring
• High and low heart rate notifications
• Irregular rhythm notifications
• High-frequency heart rate and HRV tracking
• Readiness score
• Vitals app
• Sleep tracking and sleep stages
• Sleep score
• Sleep apnea notifications
• Hypertension notifications
• Advanced Cycle Tracking
• Medications and Mindfulness apps

Sensors

• Compass
• Always-On altimeter
• High-g accelerometer
• High dynamic range gyroscope
• Ambient light sensor
• Depth gauge
• Water temperature sensor
• Third-generation electrical heart sensor
• Always-On optical heart sensor
• Temperature sensor

Outdoor & Adventure Features

Apple Watch Ultra 4 is designed for demanding outdoor activities and adventure sports.

GPS: Precision dual-frequency GPS
Navigation: Compass, Backtrack, Waypoints and Offline Maps
Diving: Recreational diving up to 40m
Water Resistance: WR100
Dust Resistance: IP6X
Durability: MIL-STD 810H tested
Action Button: Customizable physical control
Safety: Emergency SOS, Fall Detection, Crash Detection, Check In, Siren and satellite communications

Battery & Charging

Apple Watch Ultra 4 delivers multi-day battery life for extended workouts and adventures.

Normal Use: Up to 50 hours
Low Power Mode: Up to 84 hours
Outdoor Workout: Up to 18 hours
Extended Workout: Up to 25 hours
Max Extended Workout: Up to 45 hours
Fast Charging: Up to 80% in approximately 45 minutes
15-Minute Charge: Up to 18 hours of normal use
5-Minute Charge: Up to 10 hours of sleep tracking

Connectivity

Apple Watch Ultra 4 includes advanced wireless and satellite connectivity for staying connected on the move.

• Wi-Fi 4 (2.4GHz and 5GHz)
• Bluetooth 5.3
• Precision dual-frequency GPS
• Second-generation Ultra Wideband chip
• 5G RedCap and LTE on supported cellular models
• Apple Pay
• Satellite communications

Audio

Microphones: Three-microphone array with beamforming and wind-noise mitigation
Speakers: Dual speakers
Siren: Built-in high-volume safety siren

Controls

• Customizable Action button
• Digital Crown with haptic feedback
• Side button
• Double Tap and wrist flick gestures
• Siri powered by Apple Intelligence

Operating System

watchOS provides advanced workout tracking, health insights, safety features, navigation, communication, and smart functionality directly from the wrist.

In the Box

• Apple Watch Ultra 4
• Band
• Apple Watch Magnetic Fast Charger to USB-C Cable (1m)

At a Glance