  This paper investigates the use of visualization to display activity data on
smartwatches by surveying the data visual presentations proposed by 80
smartwatch models currently available on the Chinese e-commerce platform JD.com
and, later, surveying the preferences of 41 users concerning these
visualizations. The results show that despite radial bar charts are the most
popular visualization for activity data on smartwatches, the users' preferences
might be influenced by their familiarity with these charts. These findings from
this survey will be valuable for designers, developers, and researchers who are
interested in creating innovative and effective solutions for activity
visualization on smartwatches.
