 The LG Optimus L9 brings many improvements upon its predecessor, including FullHD 1080p video recording, increased screen resolution, increased RAM size and a dual-core processor.In the United States, the Optimus L9 is carried by T-Mobile and MetroPCS in black.In different markets, LG offers four different variants of this phone, with model number P760, P765, P768, and P769.