Mark Gurman. (May 14, 2014). iPhone 6 with larger, sharper 1704 x 960 resolution screen in testing. Retrieved May 7, 2020 from https://9to5mac.com/2014/05/14/likely-iphone-6-with-sharper-larger-1704-x-960-resolution-screen-in-testing/
Carlton Bale . (Unknown). 1080p Does Matter – Here’s When (Screen Size vs. Viewing Distance vs. Resolution). Retrieved May 7, 2020 from http://carltonbale.com/1080p-does-matter/
Jacob Siegal . (Sep 18, 2015). 720p vs. 1080p vs. 4K resolution: Does it really make a difference?. Retrieved May 7, 2020 from https://bgr.com/2015/09/18/720p-vs-1080p-vs-4k-resolution/
Ty Pendlebury . (Jan 29, 2014). What is 4K UHD? Next-generation resolution explained. Retrieved May 7, 2020 from https://www.cnet.com/news/what-is-4k-uhd-next-generation-resolution-explained/
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