Apple Watch Ultra 2 (US/CA, 49 mm) Specs

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Watch Ultra 2 – MREK3LL/A – Watch7,5

About this Apple Watch

The Apple Watch Ultra 2, introduced on September 12, 2023, is an enhanced version of its predecessor, designed for sports and outdoor enthusiasts. It maintains a robust design with a 49mm titanium case and a brighter display, offering up to 3000 nits of brightness. This model is unique for its independence from a tethered iPhone, though it still pairs best with an iPhone XS or later running iOS 17 for full functionality.

Key advancements include the S9 chip with a four-core Neural Engine, enhancing performance and enabling new features like the double tap gesture control and a more responsive Siri. The Ultra 2’s sports tracking capabilities remain impressive, with added support for cycling sensors and enhanced diving features. It still offers multi-band GNSS for accurate outdoor tracking and includes updates in the Compass app for improved navigation, although it still lacks some advanced navigation features found in competitors.

In terms of health and wellness, the Ultra 2 continues to offer ECG, heart rate warnings, and crash/fall detection but doesn’t significantly advance in health monitoring compared to other brands. Battery life is estimated at up to 36 hours, extendable to 72 hours in Low Power Mode.

The watch is environmentally conscious, with a case made from 95% recycled titanium and carbon-neutral options available for certain bands. However, its design is seen as more masculine and less appealing for those with slimmer wrists.

Apple S9

1 GB

64 GB

36 Hours

Storage & Memory

The Apple Watch Ultra 2 is equipped with a generous 64 GB flash storage, allowing for ample space to store apps, music, and other data. Its 1 GB of onboard RAM ensures smooth multitasking and quick access to frequently used applications.

Screen Size and Resolution

Featuring a 1.92-inch LTPO OLED Always-On Retina display, the watch offers a resolution of 410×502 pixels. This high-resolution screen provides sharp, vibrant images, and the 3000 nits brightness makes it easily readable even in bright outdoor environments.

OS & Processor

Running on the latest watchOS 10.0.1, the watch is powered by the advanced Apple S9 processor. This combination delivers a fast, responsive user experience, efficient handling of complex tasks, and supports the latest apps and features.

Battery

The Apple Watch Ultra 2’s battery life is a standout feature. The built-in rechargeable Lithium-Ion battery lasts up to 36 hours on a single charge, and the Low Power Mode can extend this to up to 72 hours, making it ideal for extended outdoor adventures.

Size and Weight

With dimensions of 1.92 x 1.73 x 0.57 inches and a weight of 2.16 ounces, the watch is designed to be both sturdy and comfortable on the wrist. The size and weight are well-balanced, providing a substantial feel without being overly heavy.

Inclusive Features

Touch-capable display, and additional silver and orange action buttons
1.92″ LTPO OLED Always-On Retina display
410×502 resolution, with up to 3000 nits brightness, protected by sapphire crystal glass
Made of natural silver-colored titanium, adding to the watch’s durability and style
Powered by the Apple S9 processor, enhancing overall performance
Comes with 1 GB of RAM and 64 GB of internal storage
Offers up to 36 hours of battery life, extendable to 72 hours in Low Power Mode
Equipped with Wi-Fi 4 (802.11n) and Bluetooth 5.3 for connectivity
Includes features for outdoor and sports activities, with expanded support for water adventures
A double tap gesture for easier navigation and control
Enhanced Siri Capabilities: Improved voice assistant functionality for better interaction
Size and Comfort: Measures 1.92 x 1.73 x 0.57 inches and weighs 2.16 ounces, balancing size and comfort
Latest Operating System: Runs on watchOS 10.0.1, supporting the current version of watchOS

Introduction Date: September 12, 2023					Discontinued Date: NA
Processors					Memory
Processors		N/A			Onboard RAM	1 GB
Processor Speed		N/A			Storage
Processor Type		Apple S9			Capacity	64 GB
Connectivity Details					Song Capacity	N/A
USB Support				N/A	Photo Capacity	N/A
FireWire Support				N/A	Description
Standard Wireless				Wi-Fi 4 (802.11n)	Case Type		Watch
Standard Bluetooth				5.3	Form Factor		Apple Watch Ultra 2 (49 mm)
Cell Network				N/A	Housing Color		Titanium
Battery Details					Controller		Digital Crown
Battery Type	Lithium Ion				Apple Order Number		MREK3LL/A
Battery Life	36 Hours				Apple Subfamily		Watch Ultra 2
Stand by Time	N/A				Apple Model Number		Pending
Operating System and Display					Model ID		Watch7,5
Pre-installed OS			watchOS 10.0.1 (21R360)		Camera		N/A
Maximum OS			Current		Dimensions		1.92 x 1.73 x 0.57
Built-in Display			1.92″ OLED		Average Weight		2.16 ounces
Display Resolution			410×502		Minimum iPhone Support		N/A

Identifier reference: MREK3LL/A, Watch7,5. Use these together because one Apple identifier can sometimes cover multiple configurations.

Last reviewed by Techable: October 29, 2024Identifiers checked: order number, A-number, EMC, and model identifier when available.

Model summary

This Apple Watch at a glance

Family: Apple Watch
Order Number: MREK3LL/A
Model ID: Watch7,5
Year: 2024

Use the order number, A-number, EMC, and model identifier together when comparing, buying, or selling this device.

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Next steps

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Common questions

Is MREK3LL/A the same as the A-number?

Not exactly. MREK3LL/A usually points to a specific retail configuration, while the A-number identifies the broader Apple hardware family. Always check the EMC and model identifier too.

What Apple Watch is model this A-number?

This page shows the Apple A-number for the device family. Use the order number, EMC, and model identifier on this page to narrow the exact configuration.

What does EMC number mean?

The EMC number is another Apple hardware identifier. It helps separate closely related models that may share a similar name, year, or A-number.

Can the RAM or SSD be upgraded?

Check the spec table for the exact configuration. Many newer Apple Silicon Macs have memory and storage integrated into the board, so RAM and SSD upgrades are often not practical after purchase.

What macOS versions work with this model?

Use the model identifier, release year, and processor family from the spec table when checking macOS compatibility. Compatibility can change as Apple releases new macOS versions.

Is this Apple Watch still worth buying used?

It can be, depending on price, battery health, memory, storage, and condition. Compare this exact order number and model identifier against similar Techable listings before buying.

How much is this Apple Watch worth?

Value depends on RAM, storage, battery health, cosmetic condition, accessories, and market demand. Use the SellMac path on this page for a quote or use the identifiers here when comparing resale prices.

What should I search if this page is not the exact configuration?

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