XS1 may refer to:
The original designation, XS-1, of the Bell X-1, a supersonic prototype airplane designed and built by the United States in 1945
XS-1 (spacecraft), a DARPA experimental spaceplane
Fujifilm X-S1, a superzoom digital bridge camera released in November 2011
XCore XS1 microprocessor Purchase a Xs1The text above came from the XS1 article on Wikipedia, licensed under the CC-BY-SA license.
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