That's about average for smartphones of this size. (techradar.com)
However, the Amoled panel is bright and vivid, and with the benefits of 2K or 4K screens on smartphones of this size being questionable, I have no problem with the OnePlus 3's display. (ibtimes.com)
I'm not sure what these two smaller tablets will offer over other smartphones of those sizes, such as their 3.5 - inch Aero, but having something to offer in the size brackets between the Dell Streak (pictured) and iPad is certainly logical. (gizmodo.com)