According to a recent rumor from the Machineo, the smartwatch Microsoft come with a rectangular screen . It relies on the fact that Andru, Gear Live, has apparently seen the device, giving us the blow detail of the design of the device.
This would provide an elongated form factor, but not as much as the image below may be implied. However, it would be much closer to something like the Fitbit One or Gear Fit Samsung in terms of form rather than the form of what could be a traditional watch as Pebble does, or like what Google unveiled Wear with Android. Andru also states that he saw wants to be a device with a flat screen, while the inner part be based on a slightly curved envelope.
It sounds interesting, and Andru also confirmed other rumors we've heard about the unit, the watch will be used to track your physical activity, and will be delivered with a heart rate monitor and a sensor galvanic response integrated in the skin of the wrist watch , and to measure the electrical resistance of the skin.
If Microsoft decides to make his story more consistent with smartwatch only Windows Phone platforms, would be a smart move for the company . Since Samsung Android devices only work with Android, the Apple iWatch only work with iOS and the new Moto 360 or LG G Watch which should be only compatible Android, Microsoft Smartwatch could stand out from the competition on this point in order to federate a larger community.
Of course, as always, as soon as I have more concrete new watch I will keep you informed.