While better known for its various PCs and gaming products, Asus has been making smartphones for quite some time. Over the previous four generations of Zenfones, Asus had always skipped the world's largest smartphone trade show, MWC in Barcelona. The reason? According to Asus' head of global marketing Marcel Campos, " just weren't ready." But it seems things are different now, because at MWC 2018, Asus is coming hard with the new Zenphone 5.