Microsoft unveiled the Surface Duo on Wednesday. It is the tech giant's first phone. The phone has two screens, which differs from the Galaxy Fold. Both screens are 5.6 inch displays. When expanded the Duo becomes an 8.3 inch device. Microsoft has partnered with Google for the device, allowing it to utilize apps from the Google Play Store. This product brings together the absolute best of Microsoft, and we're partnering with Google to bring the absolute best of Android in one product, Panos Panay, Microsoft Product Chief, via CNET. The phone is a long-time coming. Microsoft has attempted to create a mobile OS for more than two decades. Its main competitors in the industry are Samsung, Huawei and Apple.