Sony on Monday announced a slim, light and waterproof Android-based Xperia Z2 tablet and two new Xperia smartphones at the launch of Mobile World Congress. The 10.1-in. high-definition display tablet and the high-end Xperia Z2 smartphone, with a 5.2-in. display, will be available globally in March, while the Xperia M2 with a 4.8-in. display, will ship in April. Pricing was not announced, although Sony said the M2 will sell at a "mid-range" price to reach new buyers, such as those moving from feature phones to smartphones for the first time. The tablet and the Z2 run KitKat (Android 4.4), while the M2 runs Jelly Bean (Android 4.3). Also at MWC, Sony plans to reveal more details of its Core sensor for use in wearable devices such as the SmartWear product line.The SmartBand works with a new Lifelog fitness app on a smartphone, including the new Xperia Z2.