The Vibe X3 is the latest smartphone in Lenovo's Vibe series of smartphones. Featuring a 5.5 inch Full HD display, Fingerprint sensor, 21 megapixel rear camera and 8 megapixel front camera, along with 3GB of RAM and a 3500mAh battery, the Lenovo Vibe X3 packs a punch. But are the specifications enough? Here is our detailed review of the Lenovo Vibe X3.