os - How can I determine if a device is really running Android?

In our area there is gadget called "IRobot" which the supplier claims has Android 1.4 inside. I am afraid that it might be a "fake" version of the Android OS. I do not have experience with Android so are there any guidelines I can use to check that a device is really running Android? Also, is there a way to check if a version of Android can be updated?