Is touch-based text input practical for a smartwatch?

Click on the DOI link to access the article (may not be free).The use of smartwatches is increasing exponentially as is consumer interest. Currently, smartwatches offer the ability to read text messages, notifications, and email once they are synchronized with a smartphone. Text input, however, is limited to voice or predefined response phrases and no input keyboard is typically provided. A general consensus is that the interface of a smartwatch may be too small to implement a QWERTY keyboard. This study examined user performance and acceptance with two commercially available QWERTY keyboards, Swype and Fleksy, on a smartwatch. Contrary to the suspicion about the small screen of a smartwatch for text input, results indicate users can type accurately at speeds averaging 20-30 words per minute after brief practice, which is comparable to the typing speed of novice smartphone users