Obesity in children is a growing cause of concern as it affects more than 18% of children in the United States. Sedentary behaviour is one of the contributors to childhood obesity. Technological interventions like activity trackers and fitness games have been introduced to motivate both children and adults to be physically active. Most of these technologies encourage activity by making them aware of their activity levels. While awareness of current activity levels may help motivating adults, it can be difficult for children to understand their activity levels in terms of number of steps (the most common method used by adults). Instead children should be made aware of their activity levels via simpler and easier to understand technology. Within this context, we present KidLED - an LED activity display that represents user’s activity via a simple color display rather than numbers - designed to simplify activity tracking for children.