The Gionee Elfie 5.1 has set a new Guinness World Record for its diminutive dimensions -- it's just 5.1mm thick.
And although it is currently officially the world's thinnest phone, don't think that the handset is merely a gimmick. Ok, it isn't packed full of the latest hardware components -- just 1GB of RAM, 16GB of non-expandable memory and a choice of TRU Octa-core 1.7GHz or Quad core 1.2GHz CPU -- but those components are packaged together elegantly, surrounded by a magnesium alloy external frame and topped with a 4.8-inch 720P AMOLED screen.