Some specifications of the Samsung Galaxy S4 include a resolution of 1080 x 1920 pixels, a 13-megapixel back camera and a 2-megapixel front camera. The hardware specifications are 2 gigabytes of RAM, expandable micro-SD storage of up to 64 gigabytes, and an internal storage of 16 gigabytes.
The software specifications include Android version 4.4, also known as Jelly Bean, and Java support. The Android Jelly Bean version is upgradeable to Android version 5.0, alternatively known as the Lollipop version. The phone also comes with internal sensors such as accelerometer, barometer, magnetometer, gyroscope and ambient light sensor. The connectivity and communications specifications include Wi-Fi, GPRS, Bluetooth, headphones, Micro-USB charging, and Micro-SIM.
The Samsung Galaxy S4 weighs 130 grams and comes with a removable battery with a capacity of 2600 milli-ampere hours. However, the phone does not have an FM radio, so users are required to install online radio applications to listen to their favorite radio stations.
The smartphone was announced in March 2013 by Samsung and released in April of the same year. It has been regarded as the fastest selling smartphone in the history of Samsung smartphones, having sold more than 20 million units worldwide barely two months after its official launch.