Apple
Apple Watch Ultra 4
Overview
The latest iteration of Apple's flagship rugged wearable is engineered specifically for elite endurance athletes, outdoor adventurers, and marine enthusiasts. Sitting at the absolute pinnacle of the brand's smartwatch portfolio, it offers an uncompromised experience that bridges the gap between everyday smart convenience and professional-grade sports equipment. With an aesthetic that telegraphs its extreme capabilities, catering to consumers who demand absolute peak performance and durability in the harshest environments without sacrificing daily usability.
Specifications
Display Size (in mm)
49 mm
Display Resolution
422 x 514 pixels
Display Type
Always-On Retina LTPO3 OLED
Compatibility
iPhone 11 or later with iOS 20 or later
Battery Size / Battery Backup
Up to 50 hours / Up to 84 hours (Low Power Mode)
Water Resistance
100m water resistant, 40m swimproof/diving, IP6X dust resistant
Connectivity
dual-frequency L1+L5 multi-satellite GPS core, 5G NR RedCap and 4G LTE cellular eSIM standalone, Bluetooth 5.3, UWB Gen 2, NFC
Operating System
watchOS 13
Key Features & Highlights
The Apple Watch Ultra 4 comes in Black and Natural watch case colours, featuring a titanium case with a sapphire crystal display reaching up to 3,000 nits of brightness. The smartwatch has also been tested to MIL-STD-810H standards for extreme environments.
Its all-new Health Sensing System, powered by the S11 chip, offers Recovery HRV, HRV readings every 5 minutes, and background heart rate tracking every 5 seconds - 60x more frequent than Ultra 3, with 24x more HRV readings.
Health features include an ECG app, irregular rhythm and low cardio fitness notifications, a Blood Oxygen app, Sleep tracking with apnoea notifications and sleep scores, and a Menstrual Cycle tracker. Siri delivers Audio Intelligence, synced conversations, Siri Recap, Live Rewind, Sound Recognition, and Shazam detection.
Built for adventure with multi-sport tracking, Hiking workouts, custom routes, Offline Maps, Compass, precision dual-frequency GPS, and a customisable Action Button.
Safety features include Emergency SOS, Crash and Fall Detection, and Siren.
Battery lasts up to 84 hours in Low Power Mode and 45 hours in Max Extended Workout tracking.