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Sony Ericsson's Xperia X1 smartphone has shown up on the FCC's website recently. According to the documents available, the device was tested only for AT&T's 1900MHz UMTS network band, with no mention of the 1700MHz and 850MHz bands found in the filing. The original specs for the device at launch time listed two quad-band UMTS versions: 850/1700/1900/2100MHz and 900/1700/1900/2100MHz. The lack of 1700MHz in the filings means that this is A) likely not the X1 for the Americas that we have been waiting for (known as the X1a), and B) Sony Ericsson might have dropped 1700MHz AWS support from at least the European version of the X1.

Update: Sony Ericsson has confirmed that neither version of the X1 will offer support for UMTS on the AWS frequency bands used by T-Mobile USA in spite of what the original product launch press release stated.

The Xperia X1 packs a slide-out QWERTY keyboard beneath its large WVGA (800x480 pixel) touchscreen display. The Xperia "panels" user interface lies on top of Windows Mobile 6.1 Professional, providing a customized home screen experience. The Sony Ericsson Xperia X1 also features a 3.2 megapixel camera with autofocus and video capture and a microSD card slot for extra storage. Sony Ericsson is expected to begin shipping the device in Europe very soon.

Labels: sony ericsson

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