The IoT industry has just received a boost with the commercial release of Iridium's 9604 IoT module and development kit. This compact module combines satellite connectivity, LTE-M cellular, and multi-constellation GNSS in a single device, catering to OEMs and developers building connected devices that operate across both terrestrial and remote environments.
For IoT deployments, connecting devices in areas with available coverage is often not the main challenge. Rather, it's about deciding what happens when coverage changes, when assets move between cellular and non-cellular regions, and when the device footprint cannot accommodate multiple radios, antennas, and power-management paths without adding cost and engineering risk.
Iridium's 9604 module addresses this problem by bringing together Iridium Short Burst Data, LTE-M, and GNSS positioning, giving device makers a pre-integrated hardware path for applications that need both terrestrial cellular connectivity and satellite reach. This hybrid IoT module is designed to replace three separate components: satellite communications, LTE-M, and GNSS.
The integrated design of the 9604 can reduce board space requirements by 60 percent or more, simplifying RF routing, power architecture, and firmware development. Built on the u-blox SARA-R5 platform, the module measures 16 mm x 26 mm x 2.4 mm and supports LTE-M Cat-M1, Iridium's L-band satellite network, and GNSS services including GPS, GLONASS, Galileo, and BeiDou.
The development kit is intended to let developers prototype, test, and validate hybrid satellite, cellular, and positioning applications before moving toward commercial device integration. This kit provides the flexibility to manage the satellite, LTE-M, and GNSS subsystems independently, allowing developers to implement failover logic, location-aware connectivity decisions, and application-specific routing strategies.
The control and flexibility offered by the 9604 module are crucial in hybrid IoT, where different design variables such as satellite capacity, cellular airtime, battery consumption, and reporting latency are not interchangeable. This means that a device can make different choices about when to use LTE-M, when to use satellite messaging, and how often to acquire a location fix, depending on its specific application and requirements.
The commercial availability of the 9604 module and development kit could shorten the early engineering cycle for OEMs by reducing the need to combine discrete cellular, GNSS, and satellite components at board level. For system integrators, it may simplify solution design in sectors such as transportation, utilities, infrastructure, maritime, and remote monitoring, where assets often cross the boundary between terrestrial and non-terrestrial coverage.
The announcement of the 9604 module marks a broader shift in satellite IoT, where dedicated satellite-only hardware remains relevant for remote and mission-critical use cases, but many industrial and logistics applications now require continuity across mixed network environments rather than a single access technology.
Iridium's IoT portfolio now spans SBD modules, standards-based Iridium NTN Direct capabilities, and larger-payload connectivity through the Iridium Certus 9704 module. The 9604 sits in a different part of that portfolio, catering to compact, multi-mode IoT devices where small payloads, location awareness, and coverage resilience are central requirements.
By making the 9604 and its development kit commercially available, Iridium is giving the IoT ecosystem a more packaged route into the design space, particularly for devices where global coverage is needed but board area and engineering resources remain constrained.
