Various embodiments for reducing power consumption and radio frequency (RF) interference in a mobile computing device are described. In one or more embodiments, the mobile computing device may support cellular voice communication, wireless wide area network (WWAN) data communication, and wireless local area network (WLAN) data communication. The mobile computing device may be arranged to disable WWAN data communication whenever an available WLAN is detected to reduce RF interference and/or power consumption. Other embodiments are described and claimed.