I believe the GPS runs in two modes. One is continuous and can be used by applications and that can be turned off. However, there is a part of it - a locate on demand - that cannot be turned off (at least in this country). This is not battery draining because as soon as the location is gathered, the GPS sub-system is powered down again.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.