Samsung Galaxy S4 Mini was spotted in Samsung App store on 27th May, 2013. As a result, the volume of conversations about Samsung Galaxy S4 peaked that day.
Influential twitter accounts like @Mashable were seen tweeting about it:
There were also tweets from @TechCrunch
In the period analyzed from 20th May to 10th June, 2013, here is the summary of some of what happens:
Though it may be debatable whether Samsung had intentionally leaked the product or not, it is certain that Social Media indeed played a very important role in spreading the rumour and in the subsequent launch of the product.