The question is raised about the potential of chip-scale atomic clocks (CSAC) in the GPS community.

The potential is discussed in terms of their use in high-end mobile mapping systems, defense, telecom, financial transactions, and autonomous navigation for cars and drones.

However, the long-term stability of atomic clocks is not relevant in navigation applications where time is not the main output, and the additional cost, power consumption, and size of CSAC are not justified.