Apple Watch Series 1 Aluminum "42 mm" Specs

Apple Watch Series 1 - MNNL2LL/A - Watch2,7 - A1803

About This Watch

The Apple Watch Aluminum, 42 mm is Apple’s first wearable that comes equipped with features that could very well make it a necessity rather than a luxury. With features focused on the health industry, the device comes with fitness tracking as well as a heart rate monitor. The device is water resistant and can be equipped with various options of bands to suit multiple occasions. When linked to your phone, the watch allows for call and message notifications right on your wrist. You will need an iPhone 5 or above to be able to pair it with the watch.

Storage & Memory

This Apple watch comes with 512 MB of RAM and 8 GB of memory along with a song capacity of 200 and a photo capacity of 100.

Screen Size and Resolution

This Apple watch model features a 42 mm screen with a 312×390 “Retina” display. A sapphire crystal layer is used to protect the screen and sapphire crystal lenses to protect the back charging/heart rate monitor mechanism. Its screen also includes “Force Touch” capability. 

Inclusive Features


The Apple Watch includes the following features:


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


This Apple Watch model comes with the newly customized Apple watch OS for its operating system. Developed to be intuitive to use while still functioning on a small screen, the OS worked in unison with IOS to provide a seamless experience. All of this is powered by a 520 MHz Apple S1P processor.


This Apple Watch battery is expected to go for up to 3 hours of talk time, 6.5 hours of audio playback or working out, up to 48 hours of use as a watch provided it is used at a 20 second per hour rate and also up to 72 hours of Power Reserve usage. The watch charges through a revolutionary induction charger which allows you to charge it wirelessly while sitting on its pad.

520 MHz Apple S1P

512 MB

8 GB Flash Storage

18 Hours

Introduction Date: March 9, 2015

Discontinued Date: September 7, 2016





Onboard RAM

512 MB

Processor Speed

520 MHz


Processor Type

Apple S1P


8 GB

Connectivity Details

Song Capacity


USB Support


Photo Capacity


FireWire Support



Standard Wireless


Case Type


Standard Bluetooth


Form Factor

Apple Watch Series 1 (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 1 42mm

Standby Time


Apple Model Number

A1803 (EMC 3103)

Operating System and Display

Model ID

Watch 2.7

Pre-installed OS

Watch OS



Maximum OS

Current WatchOS


42 mm x 35.9 mm x 10.5 mm

Built-in Display

1.65 LCD

Average Weight

1.06 oz. (30 g)

Display Resolution


Minimum iPhone Support

iPhone 5

Create a professional listing for this device on eBay, your website, or anywhere with this HTML code.

Create a Listing

What are you looking for?