Most smartphones include touch interfaces so that users can use simple gestures, like dragging, scrolling, sliding, or swiping to interact with their phone. Although touch technology is not new, some touch screens still perform poorly. In the ultra-competitive smartphone market, delivering a quality user experience is the key to success.
In this article, we explore some important factors that contribute to smartphone touch screen quality. To understand these factors, we present some recent testing that our smartphone validation team performed. These tests evaluated touch screen sensitivity, interference capability, scroll/drag performance, etc. To help the reader understand the test details, we have provided visual aids and summary tables below.