1. Gartner Report, Egham, UK, February 15, 2017. Available at:
http://www.gartner.com/newsroom/id/3609817
. Accessed 27 March 2019
2. Deloitte 2015 Global mobile consumer survey. Available at:
https://www2.deloitte.com/content/dam/Deloitte/us/Documents/technology-media-telecommunications/us-tmt-global-mobile-executive-summary-2015.pdf
. Accessed 27 March 2019
3. Samsung Galaxy Note 7 with inbuilt Iris scanner.
https://news.samsung.com/global/everything-you-need-to-know-about-the-galaxy-note7s-iris-scanner
. Accessed 27 March 2019
4. Samsung Galaxy S7 Edge specifications.
https://www.techradar.com/reviews/phones/mobile-phones/samsung-galaxy-s7-edge-1315189/review
. Accessed 27 March 2019
5. IObit Applock face recognition unlock Android application.
http://www.iobit.com/en/applock.php
. Accessed 27 March 2019