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<h2>Apple Tablet Models (2019 - 2026)</h2>
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Apple Watch Ultra 3

Apple Watch Ultra 3

Apple Watch Ultra 3 (49 mm), Aerospace-Grade Titanium Case, Flat Sapphire Front Crystal, Always-On Wide-Angle LTPO3 OLED Display with Up to 3,000 nits Peak Brightness, Apple S11 SiP 64-bit Dual-Core Processor, 4-core Neural Engine, Dual-Frequency GPS, Satellite Communications and Emergency SOS, Readiness Score and Advanced Health Sensing System, WR100 Water Resistance and EN13319 Dive Computer, Up to 45-72 Hours Battery Life, Built-in Cellular.

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Case Size

49 mm

Overview

The Apple Watch Ultra 3 redefines the pinnacle of sports, extreme endurance, and outdoor adventure smartwatches. It introduces satellite communication capabilities for off-grid safety, enhanced power efficiency delivering up to 45 hours of normal use, and the comprehensive Health Sensing System with personalized Readiness Scores.

A comprehensive overview of its design, specifications, software, and pricing details includes:

### 1. Design and Build
  • Form Factor: Massive, rugged 49mm aerospace-grade titanium case featuring a raised sapphire front crystal edge to protect the display from harsh impacts.
  • Dimensions & Weight: Case dimensions of 49 x 44 x 14.4 mm, optimized for durability and extreme environmental resistance.
  • Materials: Corrosion-resistant titanium enclosure paired with a flat sapphire crystal glass screen and ceramic back.
  • Ingress Protection: WR100 water-resistance rating, certified to EN13319 recreational dive standard up to 40 meters, alongside MIL-STD 810H military durability compliance.
### 2. Display Technology
  • Main Display: Always-On wide-angle LTPO3 OLED flat display with sapphire crystal cover.
  • Key Display Features: Outdoor peak brightness reaching up to 3,000 nits for ultimate legibility under direct sunlight, featuring an automatic Night Mode for low-light conditions.
### 3. Performance & Hardware
  • Processor: Powered by the high-efficiency Apple S11 SiP with a 64-bit dual-core processor and 4-core Neural Engine for advanced Apple Intelligence features.
  • Storage Capacity: Packed with 64 GB of internal flash storage.
  • Connectivity: Dual-frequency GPS (L1 and L5), cellular LTE, **built-in satellite communications** for emergency messaging off-grid, Ultra Wideband (UWB) chip, Bluetooth 5.3, and dual-band Wi-Fi.
### 4. Adventure, Health, and Fitness Sensors
  • Satellite Safety: Built-in satellite connectivity enabling Emergency SOS and off-grid messaging when cellular networks are out of reach.
  • Health Sensing System: Advanced background heart rate tracking, frequent HRV monitoring, and a personalized Readiness Score combining sleep, activity, and vital signs.
  • Dive & Elevation: Integrated depth gauge with water temperature sensor, Oceanic+ app support, and an altimeter ranging from -500m to 9,000m.
### 5. Battery and Power Management
  • Battery Life: Up to 45 hours of normal everyday usage, extendable up to 72 hours using Max Extended Workout mode / Low Power Mode.
  • Charging: Magnetic fast-charging support via USB-C cable.

More images

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Technical Specifications

Building upon the foundational overview, this technical deep-dive specification sheet provides a granular look at the hardware architecture, display calibrations, sensor arrays, audio profiles, and environmental ratings of the Apple Watch Ultra 3.

1. Detailed Dimensions and Build Quality

  • Case Size: 49 mm (Height: 49.0 mm x Width: 44.0 mm x Depth: 14.4 mm); Weight: ~61.3 grams
  • Chassis & Materials: Aerospace-grade titanium case with physical guards protecting the digital crown and action button.
  • Environmental Standards: MIL-STD 810H tested (altitude, high temperature, low temperature, thermal shock, immersion, freeze/thaw, shock, and vibration).

2. Advanced Display Specifications

  • Panel Type: Always-On wide-angle Retina LTPO3 OLED flat multi-touch display.
  • Resolution: 410 x 502 pixels (~338 ppi density).
  • Brightness: 3,000 nits peak outdoor brightness (1 nit minimum in dark environments).

3. Processor and Architecture

  • System on Chip (SoC): Apple S11 SiP with 64-bit dual-core processor and 4-core Neural Engine.
  • Internal Storage: 64 GB flash storage capacity.

4. Comprehensive Sensor Suite

  • Outdoor & Communications: Precision dual-frequency GPS (L1 and L5), Built-in satellite communication hardware, Depth gauge (accurate to 1m up to 40m), Water temperature sensor, Compass with Waypoints and Backtrack.
  • Health Sensors: High-frequency heart rate tracking, HRV monitor, Readiness score system, Electrical heart sensor (ECG), Optical heart sensor, Blood Oxygen sensor, Skin temperature sensor.

5. Battery and Power Management

  • Battery Capacity: Built-in rechargeable lithium-ion battery supporting fast charging.
  • Usage Ratings: Up to 45 hours of normal use / up to 72 hours in Max Extended Workout mode.

6. Connectivity and Networking

  • Wireless: Wi-Fi 4 (802.11b/g/n), Bluetooth 5.3, NFC, 2nd-generation Ultra Wideband chip.
  • Cellular & Satellite: Built-in LTE cellular connectivity and direct-to-device satellite communication as standard.