Real-Life Experiences With An Adaptive Light Bracelet

In the last years, wearable devices have been an emerging trend on the market. Today, several wearable devices present information through light spots, especially those used for self-tracking. In this work we present a field evaluation of an adaptive light bracelet that serves as a reminder of fluid intake. We investigated how users and observers experience the bracelet under real-world conditions in comparison to a non-adaptive bracelet. Context awareness is implemented in that the LED's brightness changes according to an ongoing event. In a 16-participant 2-weeks experiment we found participants and observers experienced the adaptive bracelet more positively. Further, we found observers experienced the adaptive bracelet significantly more attractively and could identify significantly better with it. Our results will inspire designers and developers of wearable light displays.