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2011 Wimm Watch
The WIMM watch running a modified version of Android was actually a styled as a developer kit device rather than a consumer device, with the aim of kickstarting an app ecosystem based around the device.
The Wimm was well-received but short-lived: during the summer of 2012, WIMM Labs entered into an "exclusive, confidential relationship" for its technology and ceased sales of the developer preview kit.
Photo: James Kendrick/ZDNet