LG Electronics said Tuesday it would introduce its new smartphone lineup called the Optimus L Series II at the Mobile World Congress in Barcelona, Spain, later this month.

The three gadgets that belong in the new series ― Optimus L3 II, Optimus L5 II and Optimus L7 II ― feature four new design elements, which are a seamless layout, laser cut contours, radiant rear design and smart LED lighting on the home button.

The devices, all running on Google’s Android mobile operating system, have 3.2-inch, 4-inch and 4.3-inch displays and are equipped with high-capacity batteries, according to an LG official.

“LG has a history of pushing the envelope when it comes to style, and Optimus L Series II builds on this heritage of design innovation,” said Park Jong-seok, president of the mobile communications unit at LG.

“By evolving the sophisticated style and premium features of the original Optimus L Series, its sequel is expected to continue the popularity of the L Series around the world.”

The previous L Series topped 10 million units in global shipments in the first 10 months, said LG officials.

For the second L Series, a dual-SIM version of the 4.3-inch Optimus L7 II will be the first to roll out in Russia this Saturday, ahead of the Barcelona congress. A dual-SIM version enables the user to set up two different numbers on a single handset, such as one for work and one for personal use.

LG’s unique features like QuickMemo, which allows users to capture and share handwritten ideas with others, and Safety Care, which provides emergency call forwarding, phone non-usage notice and location notice, will also be available in the upcoming series, its company officials said.

By Cho Ji-hyun (sharon@heraldcorp.com)