A Personal tracking device is small, allowing them to not attract attention as they are easily concealed. It could be an invaluable item in a situation where a child goes missing, as they provide you with a history of previous locations.
Personal trackers are extremely useful to track those travelling, there is an SOS call button inbuilt to raise an alarm if the user is in need.
Personal trackers have been designed to suit toddlers to teens and even the elderly; coming in a range of battery lives and sizes.