The Optimus LTE III apparently differs from the Optimus LTE II as it made significant improvements from the battery of Optimus LTE II (2,150 mAh) to 2,420 mAh battery. As seen in the picture, it will have flip covers like Galaxy Note series. Also, not only you will be able to expect 4G speeds and it will also be an economically competitive option for people who need a 4G smartphone at inexpensive costs.