Sony has already launched most of its high-end models like the Xperia Z2, so it's trying to spice up the arrival of its mid-range Xperia T3 model by touting the design. It claims that the otherwise modest 720p, quad-core 1.4GHz model is the "world's slimmest" 5.3-inch smartphone at 7mm thick. That's a weirdly specific stat, since there are much thinner devices like this 5.5mm Gionee smartphone. But with a stainless steel frame, Sony has premium aspirations for the Xperia T3 despite its mid-range niche. On top of the design, it's pumping features like like an 8-megapixel Exmor RS back camera, LTE , a 5.3-inch Bravia IPS display and a 2,500 mAH battery, along with a suite of social and camera apps. The Xperia T3 will arrive globally at the end of July in black, purple and white, but Sony hasn't revealed the price yet. For reference, the Xperia T2 costs around $400.