ETAO Keyboard: Text Input Technique on Smartwatches

In the present day context of wearable computing, smartwatches augment our mobile experience even further by providing in- formation at our wrists. What they fail to do is to provide a comprehensive text entry solution for interacting with the various app notifications they display. In this paper we present ETAO keyboard, a full-fledged keyboard for smartwatches, where a user can input the most frequent English alphabets with a single tap. Other keys which include numbers and symbols are entered by a double tap. We conducted a user study that involved sitting and walking scenarios for our experiments and after a very short training session, we achieved an average words per minute (WPM) of 12.46 and 9.36 respectively. We expect that our proposed keyboard will be a viable option for text entry on smartwatches.