LG sets to present a lineup of 4 mid-range smartphones at Mobile World Congress (MWC) 2015, one the company says includes design elements and features derived from its more premium handsets.

The smartphones-- dubbed Magna, Spirit, Leon and Joy-- are available in LTE and 3G versions, with the LTE models featuring metallic back covers while the 3G options include pattered plastic back covers. The Magna and Spirit model also feature a gently curved (3000mm radius curve) design to fit more comfortably in the hand.

The Magna is the "ultimate" model, being a 5-inch number powered by a quad-core chipset. It also features 8MP rear-/5MP front-facing cameras and a 2540mAh removable battery. The Spirit is carries a 4.7inch touchscreen and an 8MP camera, the Leon offers a 4.5-inch within a "premium-looking" body and the Joy is the smallest model on offer with a 4-inch display.

A recently published Apple patent application reveals the company's latest means for improving the image stabilisation capabilities offered by devices such as the iPhone-- "Mirror Tilt Actuation."

First spotted by AppleInsider, the concept builds on the hardware optical image stabilisation (OIS) found inside the iPhone 6 Plus. OIS uses "lens barrel shift" and "camera tilt" to compensate for user motions, two methods Apple says are actually not ideal for cameras and small "multifunction devices."

Instead the Apple solution features an image sensor and zoom lens with a movable lens element arranged independently from each other. A "folded optics arrangement" uses mirrors to redirect light from the lens to the zoom lens (and eventually the sensor) at the right angle, while an actuator tilts the mirror according to the movement of the iPhone.

Samsung has something unusual in store for Mobile World Congress 2015 Bloomberg reports-- the next Galaxy smartphone flagship will come in two models, one of which will feature "a display covering 3 sides."

How can a display cover 3 sides? Through an evolution of Samsung's own curved-edge OLED displays, of course. The Galaxy Note Edge has such a display, if one wrapping around a single side of the device.

The unnamed sources add the two handsets also feature "all-metal bodies," 5.1-inch displays and the "most advanced" processors Samsung can make (meaning next-generation Exynos), all in a bid to win back high-end mobile market share lost to the iPhone 6.

Samsung launches a second Tizen-powered smartphone, following the delayed Z handset-- the Z1, a lower-end 4-inch device running on the open source Linux-based operating system aimed at the Indian market.

Promising "faster boot time" and "quick access to apps," the Z1 runs on a 1.2GHz dual-core processor, 768MB RAM, 4GB internal storage (expandable to 64GB via microSD card) and a 1500mAh battery armed with an "Ultra Power Saving Mode." The display is WVGA PLS while the rear-facing camera handles all of 3.1MP.

Being a smartphone for emerging markets the Z1 also features dual-SIM capability.