The latest figures on smartphone sales in the U.S. show that Samsung Electronics is beating out its rival Apple there between March and May. Data from Kantar WorldPanel showed that Samsung's Galaxy S7 smartphone outsold Apple's iPhone 6S and 6S Plus. The research firm said Samsung was the top player with a share of 37 percent, followed by Apple with 29 percent.

In terms of shares for their flagship products, the Galaxy S7 grabbed 16 percent, while that of Apple's iPhone 6S and 6S Plus line remained at 14.6 percent, according to Kantar.

However, Apple has stronger brand loyalty than Samsung, as 88 percent of current Apple device users responded that they will continue to use Apple products, compared to 86 percent of Samsung Galaxy users.

Five percent of Apple users moved to Samsung Galaxy, while the portion moving from Galaxy to the iPhone was 14 percent.

Samsung sent an invitation letter to industry officials, press and developers for a company event to release the Note 7 in New York, Aug. 2.