They have also announced a face and spec lift for their Optimus L Series which is proving popular with more than 10 million sold globally in the last quarter.
The new L-Style II range has at the bottom end an entry-level Optimus L3 II, which retails for $99 exclusively through Telstra. This device has a 3.2in screen with a resolution of 240x320, as well as a 3-megapixel rear facing camera that records video.
The overall range consists of the L3 II, L5 II, L7 II, and the L7 II Dual SIM handsets.
All four of the new L Series smartphones run Google's 4.1 Jelly Bean OS with an exclusive LG's UI overlay.
LG will release the $249 dual-SIM version of the Optimus L7 II in July; it will be available via Harvey Norman and Optus stores.
The $179 Optimus L5 II has a 480x800 resolution display screen and a 5-megapixel camera. It goes on sale in July through Boost Mobile.
The Optimus L7 II has 4.3in screen with the same resolution as the L5 II. On-board is a respectable 8-megapixel camera.
"What we are delivering is three core technologies that we believe are superior, they include, a superior display, superior processing and superior software said LG Australia's head of mobiles, Jonathan Banks.
"Sales of the L Series range in Australia had been "outstanding" and we are confident that we can lift our share of the smartphone market even further by delivering smart, functional products "he said.
Currently LG is competing with Samsung and Nokia for the top spot in the Australian prepaid marketplace with analysts tipping that they are a real contender to put pressure on both Nokia and Samsung.
The Optimus L Series (comprising L2II, L3II, L5II, L7II and L9II) will be available via carriers, mass retailers and specialist resellers.
The L3II is available via Telstra, and the L7II will be available via Optus later this month.
The L Series also offers an expanded set of features, including QuickMemo, and Quick Button, which are also features of LG's flagship smartphone the Optimus G.
QuickMemo: Lets users capture and share handwritten notes on the screen of the phone using just their finger. Quick Button: enables personalisation of the 'hotkey' to launch an application of choice such as the camera, browser, music player or even QuickMemo.
The Rainbow LED home notification light: enables the light around the central home key to be illuminated and then indicate notifications such as missed calls or received messages.
A Quick translator function, translates not only words but entire sentences and phrases by simply using the camera to scan the text.