As the Internet of Things (IoT) continues to expand across industries, organisations are increasingly faced with a key challenge: how to keep devices connected wherever they operate. While cellular networks have traditionally been the default choice for IoT deployments, satellite connectivity is becoming an increasingly important complement, particularly for devices operating beyond the reach of terrestrial infrastructure.
The reality is that neither technology is universally better. Instead, the most effective IoT strategies often combine the strengths of both.
Cellular and satellite technologies each have distinct advantages.
Cellular networks excel in populated areas where LTE, 5G, NB-IoT, and LTE-M coverage is widely available. They offer low latency, high bandwidth, low power consumption, and relatively low operating costs. These characteristics make cellular ideal for smart cities, connected vehicles, retail telemetry, and large-scale consumer IoT deployments.
Satellite connectivity, by contrast, comes into its own where terrestrial coverage is unavailable or unreliable. Industries such as agriculture, mining, oil and gas, maritime transport, environmental monitoring, and logistics often rely on satellite communications to connect assets in remote locations. Satellite networks provide broad geographic reach and can support truly global deployments without requiring relationships with multiple mobile operators.
The choice often comes down to where devices operate, how much data they need to transmit, and how critical connectivity is to the application.
Rather than replacing cellular networks, satellite connectivity is increasingly being integrated alongside them.
Hybrid IoT devices can switch between cellular and satellite connections depending on availability and requirements. For example, a fleet management solution might use cellular connectivity in urban areas to exchange large amounts of data, while relying on satellite communications when travelling through remote regions.
Other deployments use cellular as the primary connection and satellite as a backup. This approach is particularly valuable for critical infrastructure, safety systems, and high-value assets where connectivity failures could result in operational disruption, financial loss, or safety risks.
Advances in satellite-terrestrial integration are making these hybrid approaches increasingly practical by allowing greater interoperability between cellular and satellite technologies.
Several factors determine whether cellular, satellite, or hybrid connectivity is most appropriate.
Location is often the primary consideration. Urban and suburban deployments typically favour cellular networks, while remote, offshore, and cross-border operations often benefit from satellite connectivity.
Performance requirements also matter. Cellular networks generally provide lower latency and higher throughput, making them better suited to applications involving large data transfers or real-time interactions. Satellite solutions are often more appropriate for low-bandwidth applications such as asset tracking, environmental monitoring, and sensor telemetry.
Cost and scalability are equally important. Cellular connectivity benefits from mature ecosystems and low-cost hardware, while satellite solutions can be more expensive. However, satellite may deliver a lower total cost of ownership when it eliminates the need to build communications infrastructure in hard-to-reach locations.
Satellite connectivity should be evaluated whenever devices operate beyond cellular coverage, move across multiple countries, monitor high-value assets, or support critical operations where outages are unacceptable.
It is also increasingly relevant for organisations seeking resilience. Satellite provides an independent communication path that can maintain operations during natural disasters, infrastructure failures, or network outages.
The future of IoT connectivity is unlikely to be exclusively cellular or satellite. Instead, organisations will increasingly adopt intelligent hybrid models that combine both technologies to deliver coverage, resilience, and performance across a wide range of operating environments.
As satellite technology becomes more capable and better integrated with terrestrial networks, businesses will gain greater flexibility in how they connect devices. The key challenge will no longer be choosing between cellular and satellite, but determining how best to combine them to meet operational requirements while controlling costs and complexity.
For many IoT deployments, the strongest connectivity strategy will be one that leverages the strengths of both worlds.
To find out more, please check out our recent report Combining Satellite and Cellular Technologies for IoT: A Playbook.
