Smartsole is an in-shoe GPS tracker that will help family members to track their loved ones. It is specially designed to make the device ideal for children and adults with developmental disorders or persons with dementia.
The GPS tracker can be inserted into the shoe of the user and combined with your smart devices to track exact locations of their loved ones.
The water and dirt resistant device easily fits into footwear and its battery lasts up to 48 hours. (via)