This report by Schneider Electric examines interference between ZigBee and WiFi. In most residential situations the interference may delay ZigBee packets. If WiFi were used for high volume data such as video, the impact could be more severe. In that case, a frequency-agile version of ZigBee is recommended that can change frequency while in operation. Also, the interfering nodes should be separated by at least 2 meters. Test results are presented.