Data collected by analyst firm Netmarketshare shows that the overwhelming number of desktop and laptop users still rely on low resolution computer displays for their day-to-day tasks.
1920 x 1080 was the only resolution matching or surpassing full HD in the top 10. The most common resolution on the market is 1366 x 768, which is very popular on entry-level and mainstream laptops and desktop monitors.
1024 x 768 is the resolution used by the older Apple iPad tablets (and the first iPad Mini) as well as older monitors; ditto for 1280 x 1024.
The top five resolutions account more than half of the default displays used with the remainder consisting of a myriad of lesser-known, seldom-used resolutions.
It is worth noting that 4K or UHD resolution (at least 3840 x 2160) doesn't make it on the list as it accounts for less than 0.03% of the market.