While critically acclaimed, the 2012 One series had not received much consumer attention and sales were disappointing.
[1] 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 attract the attention of the consumers.
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.
[2] The "One" devices released in 2012 consist of the following, with devices in similar price segments usually sold by different carriers: The 2013 One series was reduced to focus on only three versions of one main design.
Following the previous year's setbacks, the HTC One was critically acclaimed for its design, and was commercially successful.