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2009 Samsung S9110
This is one of the slightly more unusual smart devices - a watch that was also a phone. This Samsung S9110 from 2009 was at the time touted as the world's thinnest watchphone, sporting a 1.76-inch touchscreen, Bluetooth, email support and MP3 playback. Samsung is another company that has made a number of attempts to crack the smartwatch market - more of which later in this gallery.
The 12mm thick device also supported voice recognition and speakerphone and had a 40MB internal memory.
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 (Google later confirmed that it had snapped up the company).
Photo: James Kendrick/ZDNet