Mobile World Congress is now just a few days away, but some manufacturers just can’t wait to show you their latest devices. LG just unveiled its new Optimus F7 and Optimus F5 smartphones — two midrange devices that offer 4G LTE connectivity, and Android 4.1.2 Jelly Bean out of the box.

Here are all the juicy details on them.

The F Series has been designed to “bring a premium users experience and the speed of 4G LTE to a mass audience,” according to LG. The Optimus F7 is the more advanced device in the duo, with a 4.7-inch True HD IPS display that delivers 312 pixels-per-inch, a 1.5GHz dual-core processor, 2GB of RAM, and 8GB of internal storage — expandable via the microSD card slot.

The F7 also offers an 8-megapixel rear-facing camera, a 1.3-megapixel front-facing camera, and a 2,540 mAh battery. It measures 131.7 x 68.2 x 9.6mm.

The Optimus F5 has a 4.3-inch WVGA IPS display that delivers 256 pixels-per-inch, a 1.2GHz dual-core processor, 1GB of RAM, and 8GB of internal storage — also expandable via the microSD card slot, like the F7. It also has a 5-megapixel rear-facing camera, a 1.3-megapixel front-facing camera, and a 2,150 mAh battery.

The F5 is a little more compact than the F7, thanks to its slightly smaller display, measuring 126 x 64.5 x 9.3 mm.

Both devices come with “the latest Android Jelly Bean 4.1.2 OS,” LG says in its press release, so I’m assuming the company has slept through Google’s recent 4.2, 4.2.1, and 4.2.2 updates. Nevertheless, at least its a recent version of Android, which is skinned with LG’s own UI and offers features like QSlide, Live Zooming, QuickMemo, QTranslator, and more.

LG hasn’t announced pricing for either handset yet, but it has said that the Optimus F5 will launch in Europe during the second quarter of this year, followed soon after by the Optimus F7.

Both of these devices will be on show at MWC next week, so we’ll bring you hands-on pictures and more information as soon as we’ve got it.

• SourceLG