It may look like the Essential phone, but the Sharp Aquos S2 is its own thing. The company has been making bezel-less phones before everyone else jumped on that bandwagon and it shows in how skillfully the S2 is put together. The rear panel is held together with just glue, but many components on the inside are screwed down. Everything comes apart fairly easily, once you get past the back panel (you'll need a heat gun and suction cups for that). Taking apart the Sharp Aquos S2 That selfie camera that cuts into the screen did require some acrobatics by the engineers. It...
Source: http://www.gsmarena.com/sharp_aquos_s2_taken_apart_a_bezelless_phone_thats_put_together_well-news-26760.php