Xbox
Released in 2001, the Xbox control pad was the first controller made for the original Xbox. The Xbox controller features two analog sticks, a pressure-sensitive directional pad, two analog triggers, a Back button, a Start button, two accessory slots and six 8-bit analog action buttons (A/Green, B/Red, X/Blue, Y/Yellow, and Black and White buttons). The standard Xbox controller (originally nicknamed the "Fatty" and later the "Duke") was originally the controller bundled with Xbox systems for all territories except Japan.
Xbox One
Later on, critics felt that the Xbox One's functionality had matured over the year following its launch; Jeff Bakalar of "CNET", assigning it a score of 8/10, acknowledged improvements to Xbox One's software since its original release, but that its user interface was still unintuitive in comparison to Xbox 360 and PlayStation 4, explaining that "navigating the interface seems to be much more problematic than it rightfully should be, and there's simply not enough transparency in the logic within it. There are oddities peppered throughout, which is the root for countless headaches and frustrations." Xbox One's in-game performance was mixed, with some titles showing slower performance over PS4, but some multi-platform games performing better on Xbox One than PS4. CNET praised the wider lineup of multimedia services and apps on Xbox One over PS4, not requiring Xbox Live Gold for online save data storage, support for high-speed USB 3.0 as secondary storage, and having a "slightly better" lineup of upcoming exclusives, concluding that "While the PS4 had a clear advantage at launch, that edge is slowly evaporating as Microsoft has worked feverishly to undo most of the Xbox One's original missteps."