On a scale of 1 to 10, iFixit scored the Galaxy S4 8, which is the same score that the Galaxy S3 also received. In comparison, the iPhone 5 scored 7 while the HTC One turned out to be one of the toughest phones to put back together, scoring just 1. The back of the Galaxy S4 easily snaps open without the use of any tools, and the same goes for its battery too. iFixit also likes the Galaxy S4 for using modular components than can be individually replaced, just 11 screws holding the device together. However, the glass is fused into the front panel, which makes it hard to reach without removing everything from the back. iFixit’s analysis of the Galaxy S4 has revealed a lot of other interesting tidbits about the phone – how its Smart Pause can be duped using images, how its speaker located in the rear of the handset was the best position for the speaker, how Air View and Air Gesture work due to the IR sensors placed on either side of the earpiece of the phone, and how these sensors can track your hand gesture moving sideways even without touching the screen.
