The Sony Clie UX series were premium multimedia PDAs announced by Sony in July 2003, running Palm OS (version 5). [1] These devices were advertised as being a "personal entertainment communicator", [1] a purpose not dissimilar to the Apple iPod Touch released in 2007. Two models were released, featuring a "palm-top" clamshell design, with a landscape tilting and swiveling LCD screen.
The UX40 and UX50 were largely identical, with the exception of their wireless connectivity. The UX50 included both bluetooth and built-in Wi-Fi support, while the UX40 was US$100 cheaper but only featured bluetooth. Users of these devices frequently experienced difficulty connecting to other devices via Bluetooth. The UX40 was, for a time, sold at Costco, while the UX50 was not. A UX70h model with integrated cellular capabilities was also developed, but never saw public release. [2]
The processor used on the UX series was the Sony Handheld Engine CXD2230GA. [3] At the time of release this processor was bleeding edge, demonstrating new improvements in both capability integration and power efficiency in a single System-on-a-chip.