Microsoft has been reportedly requesting 1.5-inch displays from component suppliers, and testing smaller devices with the Surface connector.
The removable wrist bands will come in blue, red, yellow, black, white, and grey, similar to how the Surface features colorful Touch covers.
Finally, the device (at least in protoype) uses Oxynitride Aluminum, a "translucent aluminum" is over 200 percent harder than glass. The prototypes run on a modified Windows 8.

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