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AO.com£749.00Visit shop Apple Watch Ultra 4 49mm Black Titanium Case GPS + Cellular [2026] Translucent Black Ocean Band Black
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The Apple Watch Ultra 4 is designed for professional athletes, outdoor adventurers, and power users who require a high-performance wearable that balances durability with advanced biometric tracking. Its core strength lies in its rugged 49mm titanium construction and industry-leading sensor suite, which provides granular data on training load and recovery; however, its substantial size may feel cumbersome for individuals with smaller wrists or those seeking a minimalist aesthetic for everyday office wear.
| Colour | Black |
|---|---|
| Dial Size | 49mm |
| Series | Ultra 4 |
| Model Part Number | X9Z59 |
| Brand | Apple |
Yes, it is water-resistant up to 100 meters and suitable for recreational scuba diving and high-speed water sports.
It includes built-in Cellular capabilities, but a separate wireless plan is required if you wish to use these features away from your iPhone.
The watch features multi-day battery life depending on usage intensity, such as GPS usage and always-on display settings.
The 49mm case is compatible with bands designed for the 44mm, 45mm, and 49mm Apple Watch models.
The S11 chip provides the necessary overhead for advanced AI processing, including Siri AI and improved Audio Intelligence.
Ensure that 'Precise Location' is enabled in your iPhone settings and verify the watch has a clear view of the sky during your activity.
Wear the watch consistently during sleep for at least three consecutive nights to allow the sensors to calibrate your baseline vitals.
Check if background app refresh is enabled for non-essential applications or reduce the frequency of high-precision GPS polling.
To set up your device, hold it near your iPhone until the pairing animation appears and follow the on-screen prompts. Ensure you are running the latest iOS version for full compatibility. For care, rinse the watch with fresh water after exposure to salt water or heavy sweat. While the sapphire crystal is highly scratch-resistant, avoid exposing the titanium case to abrasive surfaces. Charge the device using the included magnetic charger, and keep the charging contact point clean to maintain optimal connection speeds. The watch is compatible with standard 49mm bands, allowing for customization based on your activity type, such as switching to a silicone sport band for water usage or a textile loop for hiking.
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