As Mobile World Congress prepares to open its doors in Barcelona tomorrow, Chinese manufacturer Huawei has unveiled what it claims is the world’s fastest smartphone – the Ascend D Quad.

With a K3V2 quad-core 1.2GHz/1.5GHz processor, this Android Ice Cream Sandwich-touting handset will certainly be no slouch.

In a 64mm x 8.9mm casing, it sports a 4.5-inch 720P HD display, Dolby 5.1 Surround Sound and Audience earSmart voice technology. Camera-wise, we’re looking at a pretty standard (for high-end Android devices) 8-megapixel rear camera and 1.3 megapixel front-facing camera, plus 1080p full HD video-capture and playback.

Huawei claims that the 1800mAh battery will last “for one to two days with normal usage.” Experience of brochure battery life claims leads us to believe that when we see it, although the company claims that proprietary power management technology boosts battery life by up to 30%. The Ascend D Quad will be available in black and white models.

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Huawei has also announced the Ascend D quad XL, with a 2500mAh battery for a supposed “two to three days of normal usage,” and the Ascend D1, with a 1.5 GHz dual-core CPU and 1670mAh battery.

The Ascend D quad series is set to launch in China, Australia, Europe, Asia-Pacific, North and South America, and the Middle East in Q2 2012. The Ascend D1 is set to launch in these markets in April 2012.

Meanwhile, The Verge has pictures of Huawei’s MediaPad 10 HD, an Android Ice Cream Sandwich tablet with a 1080p display and an 8-megapixel camera in a super-thin 8.8mm thick casing.

Keep up with all The Next Web’s Mobile World Congress coverage here.

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Huawei Ascend D Quad