Slightly bigger screen, 2 GB ram,wave through photos with gesture control, S health, and so many other fun apps that works so well on the S4, the integrating of Google maps, hover features are also cool. In a recent post about the S4. We talked about some of the Samsung Galaxy Features. We wanted to review it through and through to see what the tech improvements are. I found this video from, iFixitYouorself’s YouTube page. This review is the most through and through tear-down that we like to see as technicians and as consumers.