China-based handset vendors are rolling out smartphones with higher hardware specifications such as 2560 by 1440 (QHD) displays and 50-megapixel cameras in order to compete with first-tier vendors in the high-end segment, according to industry sources.

　　The continual upgrade of hardware specifications by China-based handset vendors comes as major vendors including Samsung Electronics, LG Electronics, Sony Mobile Communications and HTC appear to have stopped competition for hardware specifications, using mostly 1080p displays, instead of QHD models, for their latest flagship models, the sources noted.

　　The low yield rates for QHD displays and concerns of insufficient supply have discouraged first-tier vendors from using the displays, the sources indicated.

　　China-based vendor Vivo launched recently its latest high-end model, the Xplay 3S, which sports a display with 2560 by 1440 resolution. Fellow company Oppo has also rolled out a new flagship model, the Find 7, featuring a 2560 by 1440 display and 50-megapixel camera.