Asus has finally launched its Zenfone series smartphones in India. This will definitely increase the competition in smartphones market in India. Zenfone 4 is a low budget Android smartphone, while Zenfone 5 and 6 are medium-budget Android smartphones. Now I’ll make you know the features and other information related to Asus Zenfone smartphones. After knowing the features, you can definitely decide that whether you’ll go for Zenfone 4, 5, or 6.