In today's ­second-round match-up of The Motley Fool's Better-Buy Tournament, InvenSense squares off against SodaStream in a battle to determine which stock is the better buy now. The 64-company tournament pits two Motley Fool analysts against each other as they make the case for their stocks, with the winner determined by you, the readers.

InvenSense (INVN) is attractive for two big reasons. First, more than 7 billion mobile devices will hit the market over the next five years. And the expectations for the wearables market are even larger. All of those devices will need sensors, and InvenSense will be there to supply them. The company designs accelerometers, gyroscopes, and microphones and packages them in various combinations with tiny processors, bringing incredible functionality to users. Management expects sales growth in 2014 to be 25%-35%. Motley Fool analyst Dave Meier expects the stock price to respond in kind.

When it comes to an effective razor-and-blade business model, Motley Fool analyst Michael Finarelli argues that there aren't many companies that can hold a candle to SodaStream (SODA). Having enjoyed a long history in Europe, the company's carbonated beverage makers and accompanying supplies have just begun to make their mark here in the United States. With slightly north of $500 million in 2013 sales, SodaStream will probably never rival the Goliath Coca-Cola. But the best part is it doesn't have to! Even an incremental market-share gain in the estimated $260 billion global beverage market would be enough to reward loyal shareholders for a long time.

Watch these analysts square off in the following video, and then vote for a winner. Then check out the other companies in The Motley Fool's Better-Buy Bracket. 

This year's winning stock?
There's a huge difference between a good stock and a stock that can make you rich. The Motley Fool's chief investment officer has selected his No. 1 stock for 2014, and it's one of those stocks that could make you rich. You can find out which stock it is in the special free report "The Motley Fool's Top Stock for 2014." Just click here to access the report and find out the name of this under-the-radar company.

Cast your vote in the poll below the video!