LG’s new Optimus F series may be mid-range Androids, but with features like LTE support, they’re a big more robust than the company’s L series. We just showed you the Optimus F5, and now we look at its higher-end cousin, the Optimus F7. The F7 has a 4.7-inch 720p screen, dual-core 1.5GHz SoC, 2GB of RAM, and an eight-megapixel main camera; with specs like those, this would have been a top-tier Android just a year or so back. The smartphone runs Android ...