The following video is from Wednesday's installment of The Motley Fool's Weekly Tech Review, in which analysts Eric Bleeker and Jason Moser look at the biggest stories driving the tech sector this week.

Kantar Media recently released data indicating that during three months ending in May, Apple's (NASDAQ:AAPL) iPhone accounted for 31% of smartphone sales on T-Mobile (NASDAQ:TMUS) in spite of its being available for only half of those three months. And the iPhone isn't even subsidized on T-Mobile -- the "un-carrier" has trumpeted its switch to installment payments. What should investors think about the iPhone's surprisingly strong start on T-Mobile?

The relevant video segment can be found between 7:44 and 11:00.

Eric Bleeker, CFA, and Jason Moser have no position in any stocks mentioned. The Motley Fool recommends and owns shares of Apple. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.