But that wont stop teenage Apple fans from professing an interest in buying a potential iWatch. A recent study by Piper Jaffray found that 6 percent of teens currently own a smartwatch, and that 17 percent say they would buy an iWatch if it were to cost less than $350. However, considering that 61 percent of teens own a version of an Apple handset (up from 55 percent in October 2013), perhaps interest in an iWatch isnt so shocking.