Apple will officially launch a smartphone running iOS platform in late 2013, according to Bloomberg.
According to sources from Apple, the iWatch-based iWatch smartphone can connect to the iPhone / iPad / iPod Touch via Bluetooth.
However, the iWatch version is currently experiencing battery life problems, as the test product can only be operated within 2 days.
In the original plan of Apple, the battery life of iWatch for at least 4 days.
Apple is still researching and refining the product before it is announced later this year.
The iWatch development team includes 100 engineers, led by design director Jony Ive.
