Recent estimates suggested devices like Google Glass and Apple’s upcoming “iWatch” could be the start of a wearable tech explosion that generates as much as $6 billion annually by 2016. According to newly published research from Credit Suisse, however, that estimate is ridiculously low. In a research note picked up by Business Insider, Credit Suisse analysts predict that the wearable technology market will balloon from the current $3 billion to $5 billion range to a whopping $30 billion to $50 billion in the next two to three years. The firm believes Apple’s upcoming iWatch will generate $10 billion annually on its own, and the growing health and fitness market will play a key role as well.