New touch screen testing conducted by Finnish technology company OptoFidelity has suggested [PDF] the touch displays of Apple's iPhone 5s and iPhone 5c are less accurate than the display of the Samsung Galaxy S3, but the testing has failed to take into account that Apple has designed its iPhones to compensate for different usage angles.
Using its proprietary OptoFidelity Touch Panel Performance Tester, which compares the coordinates of touches by a robot with an artificial finger to coordinates from a touch device, the company measured the accuracy of both the iPhone 5s, the iPhone 5c, and the Galaxy S3. The video below demonstrates how the testing was carried out.
iOS is designed to compensate for the angle that it expects a phone to be held at, which suggests that some of the discrepancies between screen accuracy between the iPhone 5s/5c and the Galaxy S3 may be intentional on Apple's part, in order to provide a better experience for users that are not holding their phones in static positions.
In addition to testing touch screen accuracy, OptoFidelity also took a look at touch screen latency, which was previously examined by Agawi. As with those initial tests that showed the iPhone 5 to be far more accurate than its Android counterparts, OptoFidelity had similar results with the iPhone 5s and the iPhone 5c.
Testing functionality such as web browsing opening time and camera application opening time revealed that the iPhones were more responsive than the Galaxy S3, with the iPhone 5s registering slightly faster response times.
Article Link: Testing Finds Inaccurate Touch Sensing on iPhone 5s/5c, But Neglects Perspective Compensation