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Apple Watch Series 3 "42mm" Cellular (International) Specs

Apple Watch Series 3 - MQKM2B/A - Watch3,2 - A1891

About This Watch

The Apple Watch Series 3 is almost identical in its shape and form to its predecessors but has been fitted with upgraded and more powerful internals. Whilst the battery and many other components stayed the same, the most notable upgrades are the new Apple S3 processor and the ability for certain watches to be connected to a 3G network. This allows for the watches to be fully functional without needing to be tethered to an iPhone. This functionality is not present in the GPS only variants but is present on the cellular variants. The watches function off a partnered SIM card which needs to be purchased with the same mobile carrier as your phone. 

Storage & Memory

The Apple Watch Series 3 comes with 768 MB of RAM and 16 GB of memory. Apple has not released official specifications on song and photo storage capacities.

Screen Size and Resolution

This Apple Watch Series 3 has a 42 mm sized OLED display with a resolution of 312×390. This display is force touch capable and also has a water resistance protection of an estimated 50 meters.

Inclusive Features 

The Apple Watch includes the following features:

  • Force touch OLED display.
  • Digital crown control piece.
  • Multiple wristband units.
  • Heart-rate monitor.
  • Emergency heart-rate detection.
  • Wireless Charging.
  • Bluetooth.
  • Water resistant.
  • GPS tracker.


The Apple Watch Series 3 comes with the newly introduced Apple watchOS 4 for its operating system. It is also powered by a dual-core Apple S3 processor. Apple has not released processing speeds for this processor.



The Apple Watch Series 3 battery is expected to go for up to 18 hours overall but specifically 3 hours of talk time, 10 hours of audio, and up to 5 hours of working out while using GPS. There is no improvement from the Apple Watch 2 on battery life.

Apple S3
768 MB

16 GB Flash Storage

18 Hours

Introduction Date: September 12, 2017

Discontinued Date: September 15, 2020




1 (2 cores)

Onboard RAM

768 MB

Processor Speed



Processor Type

Apple S3


16 GB

Connectivity Details

Song Capacity


USB Support


Photo Capacity


FireWire Support



Standard Wireless

802.11b/g/n 2.4 GHz, LTE

Case Type


Standard Bluetooth


Form Factor

Apple Watch Series 3 (42 mm)

Cell Network


Housing Color


Battery Details


Digital Crown

Battery Type

Lithium Ion

Apple Order Number


Battery Life

3 – 18 hours

Apple Subfamily

Watch Series 3 42 mm

Standby Time


Apple Model Number

A1891 (EMC 3167)

Operating System and Display

Model ID

Watch 3.2

Pre-installed OS

WatchOS 4



Maximum OS

Current OS


42.5 mm x 36.4 mm x 11.4 mm

Built-in Display

1.65 LCD

Average Weight

1.23, 1.86 oz. (34.9/52.8 g)

Display Resolution


Minimum iPhone Support

iPhone 5

Refurbished Macbook Pro

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