HTC’s flagship Android smartphone has been well received by critics and consumers. The HTC One has sold more than 5 million units and is estimated to be selling around 1.2 million units per month. A new report suggests that HTC is looking to capitalize on the smartphone’s success by launching a similar device for the Windows Phone 8 platform. According to Neowin, HTC is working on a “mostly metal” handset that is equipped with a display measuring between 4-inches and 5-inches diagonally. The device is also expected to include Beats Audio technology and an Ultrapixel camera. HTC will reportedly announce the smartphone sometime this fall.