Can a Fitbit distinguish between cross-fit and carnal knowledge? It doesn't matter, says Oral Roberts University (ORU) officials, because they won't be scanning data for signs of student coitus anyway. The school now requires that all of its incoming students use (and pay for) Fitbit trackers during the spring semester. That caused some speculation that the devices could invade students' privacy, particularly since they can be used to monitor sexual activity. However, the school says it isn't using the devices to enforce its code of conduct forbidding pre-marital sex.