HTC One series

HTC One is a series of Android and Windows Phone smartphones designed and manufactured by HTC. All products in the One series were designed to be touchscreen-based and slate-sized, and to initially run the Android mobile operating system (Android 4.0 Ice Cream Sandwich or subsequent Android releases) with the HTC Sense graphical user interface. From 2010 to 2013, all HTC products starting from the HTC Sensation XE to the HTC One Mini were equipped with a Beats Audio equalizer. Later HTC devices beginning with the HTC One Max no longer ship with Beats Audio following the buyback of HTC's stake in Beats Electronics.

While critically acclaimed, the 2012 One series had not received much consumer attention and sales were disappointing. For one, HTC has been outspent on marketing by Samsung and Apple, as HTC instead had relied heavily on carriers to promote its products. Also, while HTC made many carrier-specific devices, Samsung and Apple were able to concentrate their resources on single flagship handsets such as the Samsung Galaxy S III and iPhone 4S to make them big hits. Lastly, while HTC handsets were seen as better quality than Samsung's plastic devices, Samsung was able to successfully distinguish itself from other Android manufacturers with manufacturer-specific software tweaks (as well as marketing to promote its brand) while HTC could not.

...
Wikipedia