Samsung's 2.5 million Galaxy Note 7 phone recall comes amid an otherwise muted iPhone 7 launch and a key launch window other handset franchises, Munster said.
Prior to the recent news, Samsung had been the leading worldwide smartphone vendor in the second quarter, according to research from IDC. The firm estimates that Samsung shipped 77 million smartphones in the second quarter, ahead of Apple's 40.4 million.
It's still unclear how Samsung and Apple will fare amid recent news. But if Samsung loses 10 percent of its Galaxy sales during the recall, it could push Apple's iPhone numbers up a couple of percent, Munster estimates.
"Might not sound like much, but in this hyper-scrutinized investor concern on the health of the iPhone franchise, every percent counts," Munster said.