In this week's edition of SmartWatch, sponsored by SanDisk, we take a look at some surprising first-quarter results from the nation's two largest wireless carriers. Until now, Verizon has managed to stay above the fray, as AT&T and T-Mobile engaged in a price war. However, given 1Q earnings, it appear Verizon will have to join the fight going forward, as AT&T added 625,000 postpaid connections compared with Verizon's 539,000. 

Read: Verizon Churn Ticks Up in 1Q 

Read: AT&T Talks Next Impact on 1Q Earnings 

Also on tap in this edition is a look at Apple's impressive iPhone sales, as well as the company's 7 to 1 stock split. All this and more as SmartWatch gets ready to rumble! 

Read: Apple Announces 7:1 Stock Split