You can read the complete Article #4 and Analysis here:
PS4 vs DS – VGChartz Gap Charts – October 2019
PlayStation 4 Vs. DS Global:
Gap change in latest month: 205,908 – DS
Gap change over last 12 months: 6,589,514 – DS
Total Lead: 31,750,778 - DS
PlayStation 4 Total Sales: 101,342,408
DS Total Sales: 133,093,186
The second highest selling system ever versus the soon-to-be-third. PS4 will probably land between 130 and 140 million at the end of the day I reckon.
You can read the complete Article #5 and Analysis here:
Switch vs PS4 – VGChartz Gap Charts – October 2019
Switch Vs. PS4 Global:
Gap change in latest month: 330,761 – Switch
Gap change over last 12 months: 1,794,077 – Switch
Total Lead: 641,721 – PS4
Switch Total Sales: 40,736,064
PS4 Total Sales: 41,377,785
The DNA strands converging once again, with the systems almost equal at 32 weeks and Switch set to take the lead with the approach of the holiday season. Interested to see how long this dance continues until one eventually breaks away.
Worth noting that as of these numbers PS4 had had 3 holiday seasons and Switch only 2.