Last week, South Korean mobile maker LG unveiled 3 new smartphones – Optimus L3 II, Optimus L5 II and Optimus L7 II. Just after a day, LG officially revealed 5.5-inch powerful Android smartphone, Optimus G Pro. Seems like LG is in full gear. Recently, the South Korean mobile phone manufacturer has unveiled two more new smartphones under the new F series – Optimus F5 and Optimus F7. You will find the details of the phones inside.