Apple Watch Series 1 Regular Steel "38 mm" Specs

Apple Watch Series 1 - MJ302LL/A - Watch1,1 - A1553

About This Watch

The Apple Watch Regular/Steel, 38 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 a1553 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 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 38 mm screen with a 272×340 “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. The entire device is encased in a 316L stainless steel casing.

      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 S1 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 S1

        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 S1


        8 GB

        Connectivity Details

        Song Capacity


        USB Support


        Photo Capacity


        FireWire Support



        Standard Wireless


        Case Type


        Standard Bluetooth


        Form Factor

        Apple Watch (Regular, 38 mm)

        Cell Network


        Housing Color


        Battery Details


        Digital Crown

        Battery Type

        Lithium Ion

        Apple Order Number


        Battery Life

        3 – 18 hours

        Apple Subfamily

        Watch Standard 38 mm

        Standby Time


        Apple Model Number

        A1553 (EMC 2870)

        Operating System and Display

        Model ID

        Watch 1.1

        Pre-installed OS

        Watch OS



        Maximum OS

        WatchOS 4.x



        Built-in Display

        1.5 LCD

        Average Weight

        1.41 oz. (40 g)

        Display Resolution


        Minimum iPhone Support

        iPhone 5

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