Apple Watch Ultra 4 Repair

The Apple Watch Ultra 4 was announced on September 9, 2026 during Apple's "Surprise and Shine" event, along with the Apple Watch Series 12.

Compared to Apple Watch Ultra 3, the Ultra 4 has enhanced health features like high-frequency background heart rate tracking.

The battery life is increased to 50 hours (eight more than the Ultra 3).

The Apple Watch Ultra 4 comes in Natural and Black Titanium, and starts at $799.

The Apple Watch Ultra 4 is physically identical to its predecessors. The main way to identify it is with the model number.

The model number is etched inside the Ultra 4's top watch band slot. The model number is also found in the Settings > General > About section on either the watch, or the corresponding iPhone Watch app.

Dimensions: 49 mm × 44 mm × 12 mm

Weight: 61.6 g (2.17 oz)

Display:

• Always‑On Retina display with wide‑angle OLEDs and LTPO3
• 1-3000 nits brightness
• 422 by 514 pixels

Processor: S11 System in Package (SiP) with 64-bit dual-core processor

Storage: 64 GB

Battery: Up to 50 hours of normal use, up to 84 hours in low power mode

Sensors:

• Optical heart sensor
• Electrical heart sensor
• Temperature sensor
• High-g accelerometer
• High dynamic range gyroscope
• Always-on altimeter
• Ambient light sensor
• Three-microphone array with beamforming and wind noise mitigation
• Depth gauge
• Water temperature sensor
• Blood-oxygen sensor

Connectivity:

• LTE and 5G in cellular models
• L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou
• Wi-Fi 4 802.11n
• Bluetooth 5.3
• 2nd Gen Ultra Wideband chip
• NFC
• International roaming

Compatibility: Requires iPhone 11 or later with iOS 27 or later

Haptic Feedback: Taptic Engine

Miscellaneous Features:

• Water-resistant and swim-proof up to 100 meters (Dive ready to 40 m/130 ft.)
• Certified IP6X dust resistance
• Tested to MIL-STD 810H
• EN13319 certification; dive-ready to 40 m / 130 ft.
• Customizable Action button
• High-frequency background heart rate tracking
• Dual speakers
• Compass
• Apple Pay
• Qi wireless charging

Apple: Watch Ultra 4 Specs

Wikipedia: Apple Watch Ultra