updated 10:40 am EDT, Wed March 24, 2010
Robot test shows Apple, HTC best at touch accuracy
Apple has by far the best touchscreen accuracy of any smartphone maker, a new round of MOTO testing has discovered. A follow-up on the finger-only test has used a robot to gauge the absolute accuracy and has found that only the iPhone's touchscreen could draw consistently straight lines on most of the screen. The Nexus One was second but still produced wavy lines, a behavior that also carried over to the Droid Eris.
Other devices performed noticeably worse or had mixed results. The BlackBerry Storm2 and Palm Pre performed almost as well as the iPhone with a regular touch but quickly lost accuracy and input with a lighter touch. Motorola's Droid fared the worst with noticeable errors regardless of the strength of input.
The results differ from the original test using actual human hands but should still reflect the level of detail and sensitivity of the screen itself. More consistent performance in the finger test can be attributed to the nature of human input, where users can adjust pressure and speed on the fly. Researchers conducting the test, however, have argued that it shows a high-quality capacitive touchscreen is necessary for a good smartphone as a poor one can create problems.
The gap in quality between Apple and others should eventually close once companies get more experience developing touch, MOTO said.