Apple iWatch is still new and is not fully developed. I believe the coming version of iWatch will threaten the existence of a lot of watch companies like casio, etc.

Day by day new technology is coming up. Samsung is increasing their sales, google also going good, apple now needs the innovation required. So, here apple is introducing the iwatch. The iWatch will bring new inputs from the wrist to allow entirely new technology, the iWatch won't be your smartwatch, it will be the way you interface with the digital world. iWatch has many features like,

GPS.
Heart beat monitor.
Stress levels monitor.
Blood oxygen level.
Body temperature.
Outside temperature.
Humidity.
Skin moisture levels.
Accelerometers.

So basically the iWatch tells you about how you are feeling, what are you doing, where are you going etc. It is more than a smart watch. Expectations are really high, Let's see how will it be good in the Indian market.