In this week’s episode of SmartWatch, sponsored by SanDisk, we look at T-Mobile’s impressive first quarter, which managed to outshine even Tier One behemoths Verizon and AT&T.

T-Mobile added a whopping 1.3 million branded postpaid customers. While adjusted EBITDA was down a little over 12 percent sequentially to $1.1 billion, it was for all the right reasons, namely adding a lot of new customers. This was T-Mobile's fourth consecutive quarter of adding over a million total net additions.

Read: T-Mobile Wows in 1Q

In a quarter that saw both AT&T and Verizon report first-quarter postpaid net adds of 539,000 and 625,00 respectively, Legere said T-Mobile's Uncarrier strategy appears to have fundamentally changed the game.

Read: Verizon's Underwhelming 1Q

Read: AT&T's 1Q Impacted by Next, Mobile Share Plans

We also take time out to chat with Tim Cook about recent rumors that absolutely nothing fun will be unveiled at Apple’s annual WWDC developer conference in June. All this and a whole lot more in this, our ninth episode, of SmartWatch!