What is the practical distinction between Bluetooth, Wi-Fi, and LTE in this design?

The distinction is based on how authorization is established rather than how physically integrated the module is. The Bluetooth Wi-Fi module was evaluated during the host radio Part 22 74 80 and 90 testing and included in the system-level compliance assessment with no reliance on a separate FCC grant. As a result, no separate FCC ID labeling is required. The LTE module, on the other hand, is approved under its own FCC ID, and the host authorization relies on that existing certification. Because the authorization lineage must be preserved, a Contains FCC ID label is required.