The main dial you can see the current time.

Today's date, the current time and battery level has been displayed as surround that.

And say "Ok Google", "start stopwatch", will be allowed to start the stopwatch.

It appears to supplant the date.

The following Android Wear is required.

ASUS ZenWatch,

LG G Watch,

LG G Watch R,

Samsung Gear Live,

Motorola Moto 360

and so on.