G-Shocks are back -- again. Ready for Swiss timepiece showcase BaselWorld, Casio has announced two new analog concept watches with a little extra soupçon of tech crammed in. The designs still lean towards those looking for a classically-styled (at least, in G-Shock terms) analog watch. Both are expected to last plenty without any regular USB life-support, with the company's latest solar cells there to keep the mechanism and electronics going. First up, the Edifice EQB-500 connects to smartphones using Bluetooth 4.0 Low Power (Casio's first analog watch to do so). It's a loose allegiance though, covering time information and alarm settings which can also be programmed through the phone -- it's still very much a watch, not a Pebble rival. Casio's second model is the more technically accomplished one: the first watch to pair together both GPS and Radio Wave tech, all without any unwieldy lumps in the design.