Released in April of 2013, the Samsung Galaxy S4 is the fourth in the Samsung Galaxy S line. The S4 has a slightly larger screen than the SIII, clocking in at 5 inches with a Full HD 1080x1920 display upping the pixel density from 306ppi to 441ppi.
Notable improvements come with the 13 MP rear- and 2.1 MP front- facing camera, with full HD video-recording capabilities, and with the updated Exynos 5 Octa processor. It is the first phone to offer an 8-core chip, consisting of four Cortex-A15 cores clocked at 1.6GHz and four Cortex-A7s clocked at 1.2GHz so that it can handle both highly-demanding and less-demanding tasks while theoretically maintaing a solid battery life. Other improvements come with 2 GB or RAM and notable software updates, with features such as eye-tracking to make the S4 even more involved in your life, earning it the title of Life Companion.
Diagnose any issues you may be having with your Galaxy S4 using our Galaxy S4 Troubleshooting Page.