Huawei on Sunday announced the new Ascend D quad smartphone at Mobile World Congress. The company bills the handset as “the world’s fastest quad-core smartphone,” with its 4.5-inch 720p HD display and Huawei’s own K3V2 quad-core 1.5GHz processor. The smartphone features an 8-megapixel rear-camera, 1.3-megapixel front-facing camera and runs Android 4.0 Ice Cream Sandwich. Huawei also introduced the Ascend D quad XL and the Ascend D1 smartphones. The Ascend D quad XL boasts a massive 2,500 mAh battery, but otherwise it’s the sames exact smartphone as the Ascend D quad. The Ascend D1 runs a 1.5 GHz dual-core CPU and has a 1,670 mAh battery. The Ascend D quad series will be available in China, Australia, Europe, Asia-Pacific, North and South America, and the Middle East in the second quarter of 2012, with the Ascend D1 to be made available in April. Pricing and more specific information surrounding launches aren’t yet available.