Germany's Adidas sued Baltimore's Under Armour on Tuesday for allegedly infringing on its wearable tech patents. 

A complaint filed Feb. 4 in federal district court in Wilmington, Delaware claims Under Armour's Armour39 watches and chest straps, as well as technologies featured in its MapMyFitness tracker, infringed on 10 patents Adidas registered between 2007 and 2013. Adidas is seeking a jury trial and alleges Under Armour purposely copied functions such as real-time workout analytics and automatic route mapping. 

"Adidas is moving forward to protect digital technologies core to our miCoach product," a spokesperson told the The Wall Street Journal. Under Armour, an Inc. 500 alumnus, said in a statement it has long "been recognized as a pioneer in this category" and is in the process of "reviewing the complaint," according to Bloomberg Businessweek

The legal drama underscores the importance wearable tech is starting to take on in fitness and other pursuits. Companies from Apple to Silicon Valley's Fitbit have jumped on the trend, which is only expected to grow, as last month's International Consumer Electronics Show made clear