Apple Inc’s CEO Tim Cook in an interview with Telegraph representative told the Apple Watch can replace car keys, so that battery will last the whole day. The watch can be charged in short time not long as for iphone.

In the list of multiple functions done by the watch, it can work as a credit card through Apple Pay. The rollout of the watch might pose a challenge for Apple's stores, which may involve "tweaking the experience in the store," the Telegraph said, citing Cook's conversation with the staff at Apple's Covent Garden store in London.

And recent stories circulated on the self-driving electric cars and possibilities. The company has scheduled a special event on March 9, where it is expected to showcase Apple Watch, which is likely to be launched in the month of April.

-kannamsai