Dual cameras have been a key feature defining the smartphone industry all this year. But Taiwanese electronics major Asus takes the dual-camera game to the next level with the Zenfone 4 Selfie series – three selfie-centric smartphones, two of which have dual front camera set-ups.

While one variant of the Asus Zenfone 4 Selfie and the premium Zenfone 4 Selfie Pro have dual front cameras, the Zenfone 4 Selfie also has a single-front-camera variant. The Pro version has a dual 24-megapixel plus 5 MP shooter on the front, along with a soft flash and features like the portrait mode ...