Bandwidth is almost never what limits a connected-device project. A soil sensor sends a few hundred bytes an hour. Giving it a gigabit link changes nothing. The properties that matter are different.
Density
5G supports far more simultaneous connections per cell than its predecessors. For a building with two thousand sensors, or a plant floor with hundreds of tags, this is the headline change. Previous generations forced gateway architectures largely because the network could not hold that many endpoints.
Power profiles
Low-power variants let a device wake, transmit and sleep without the radio negotiation overhead that drains batteries. In deployments where changing a battery means sending someone up a mast, doubling battery life halves the maintenance budget.
What has not changed
- Coverage is still uneven, and a device that only works under 5G is a device that fails outside the city.
- Radio does not fix protocol design. Chatty devices are still chatty.
- Security remains the deployer's problem. A faster link moves a compromised device's traffic faster.
Designing for the network you have
The durable pattern is to treat connectivity as variable. Devices buffer locally, transmit opportunistically, and degrade to a slower bearer without human intervention. Build that, and improved networks make the system better rather than becoming a dependency.