It has best camera to take selfies because of 16MP front camera more light, more detail .1.3 Inch image sensor .users can simply rotate the phone from side to side to take a wide angle selfie . the F1s automatically stitches together the photos to make sure that the whole party gets in the shot .it 13MP rare camera take wonderful night shots .A beauty to see and to hold finely crafted beautifully detailed .and it has 2.5D gorilla glass 4 .two thread thin metallic bands .and it has 5.5 Inch screen . 0.22s fingerprint unlock done before you notice .its sensor is snappier and more accurate than ever . With our self learning arithmetic the more frequency you use the more sensitive it can be .it unlocks the phone just long enough for you to prepare your gasp of surprise the new F1s features a 4GB ram for effortless and smooth multitasking and seamless switching between apps movies and your favorite music.redefine speed with the upgrade f1s . this feature is available only in the upgrade OPPO f1s.