1. Forbes. Wearable tech market to be worth $34 billion by 2020, February 2016. https://www.forbes.com/sites/paullamkin/2016/02/17/wearable-tech-market-to-be-worth-34-billion-by-2020
2. International Data Corporation. Worldwide quarterly wearable device tracker, March 2017. https://www.idc.com/tracker/showproductinfo.jsp?prod_id=962
3. Mashable. Husband learns wife is pregnant from her Fitbit data, February 2016. http://mashable.com/2016/02/10/fitbit-pregnant/
4. The Wall Street Journal. Prosecutors say Fitbit device exposed fibbing in rape case, April 2016. http://blogs.wsj.com/law/2016/04/21/prosecutors-say-fitbit-device-exposed-fibbing-in-rape-case/
5. The Guardian. Court sets legal precedent with evidence from Fitbit health tracker, November 2014. https://www.theguardian.com/technology/2014/nov/18/court-accepts-data-fitbit-health-tracker