NotiRing: a comparative study of notification channels for interactive rings (CHI15)

Thijs Roumen, Simon T. Perrault, and Shengdong Zhao

We conducted an empirical investigation of wearable interactive rings on the noticeability of four instantaneous notification channels (light, vibration, sound, poke) and a channel with gradually increased temperature (thermal) during five levels of physical activity (laying down, sitting, standing, walking, and running). Results showed that vibration was the most reliable and fastest channel to convey notification, followed by poke and sound which shared similar noticeability. The noticeability of these three channels was not affected by the level of physical activity. The other two channels, light and thermal, were less noticeable and were affected by the level of physical activity. Our post-experimental survey indicates that while noticeability has a significant influence on user preference, each channel has its own unique advantages that make it suitable for different notification scenarios.

This  project has been published at CHI 2015:
link to paper
link to talk recording

Thijs Roumen, Simon T. Perrault, and Shengdong Zhao. 2015. NotiRing: A Comparative Study of Notification Channels for Wearable Interactive Rings. In Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems (CHI '15). ACM, New York, NY, USA, 2497-2500. DOI:

This is a platform for wearable interaction devices developed during this project. Basically it is one control unit which can drive all different rings depending on which one is plugged in. And in fact it could control all kinds of wearable devices.

The casing with a ring plugged into it