I have seen a lot of watchbands designed for the iPod nano, and that device must have been made to be placed on the user’s wrist. Now there is the Android-powered I’m Watch, which is made for Android users.
Granted, it only runs Android 1.6, but it can run a small factor of Android applications on its 1.54 inch display. It connects to a smartphone via Bluetooth, and allows the user to check out their calls and send messages. It also has 64MB of RAM, 4GB of internal storage, and there is a headphone jack in case you want to listen to some tunes.
It is definitely another way that Android is taking over devices. You can pre-order them at the I’m Watch website for about $350.