An inventive animal collar device is described herein that monitors location, physiological information and/or environmental information relating to an animal wearing the device. The collar may include multiple sensors and other electrical components embedded within the collar body that provide means for: tracking and monitoring an animal's activity and whereabouts, increasing visibility of the collar, and storing and retrieving animal, environment and system information. The collar may implement one or more wired or wireless communication devices so that the collar may transmit data to a connected computing device. The collar may also include one or more antennas to send and/or receive location information associated with the device. The collar may include a removable module that attaches to the collar via a module dock. The removable module may include any of the electronic components and may allow for the collar body to remain on the animal during information transfer and/or charging.