Unlike a slice of a commercial network, FirstNet is an entire 5G network built from the ground up to exclusively support all of America’s first responders and the essential services that support their missions. With a dedicated network core, exclusive spectrum, always-on priority and preemption, a dedicated fleet of deployable assets and security that goes well beyond standard commercial network security measures, first responders have reliable, uninterrupted access during emergencies. Network slicing, like T-Mobile’s T-Priority slice, is a virtual segment of their commercial network, which is built for the general population. Slices may face resource contention or performance variability, especially during high-demand situations. The dedicated FirstNet infrastructure offers unmatched reliability and security for mission-critical communications, while slicing remains an emerging technology better suited for non-critical use cases.