The margin is razor thin, but at this point it appears that Huawei will soon offer the world’s thinnest smartphone.

It was just a few months ago that the Motorola Droid Razr was launched as the world’s thinnest smartphone. The Razr is 7.1mm thin, and weighs in at 4.5 ounces.

The new phone from Huawei, called the Ascend P1 S, is 6.68mm thin and comes in at 4.6 ounces. The Ascend P1 S also has a slightly thicker cousin (by about 1mm), the Ascend P1. In exchange for that slightly thicker body, the Ascend P1 has a longer battery life.

Considering its thinness, Huawei has managed to pack quite a bit of tech into these smartphones. They feature a 4.3-inch Super AMOLED qHD display, and they are powered by a 1.5GHz dual-core processor and 1 GB of RAM. Into that thin body they managed to fit in an 8 megapixel front facing camera and a 1.3 megapixel rear facing camera.

The phones run the new Android 4.0 (Ice Cream Sandwich). Ice Cream Sandwich was launched back in October, 2011. It took a little while to get rolling, but we are glad to see the new Android OS finally being prominently featured at this year’s Consumer Electronics Show (CES), where these new super thin smart phones from Huawei were introduced.

Huawei says it does not have a carrier partner for the Ascend P1 S and Ascend P1 yet. However, the phones are expected to launch in April at a price of approximately $400.