TAIPEI: Smartphone maker HTC unveiled on Tuesday to Taiwanese gamers its virtual reality headset for the first time, as the company pins its hopes on the new product to help revive struggling sales. HTC has been suffering losses as it grapples with intense competition in the crowded smartphone sector from Samsung, Apple and rising Chinese brands. The HTC Vive will vie for consumers with Facebook’s Oculus Rift and Sony’s PlayStation VR, all set to be released next year as tech firms seek to make their mark in virtual reality field.