In Episode 9 of eSIM Talks, host Rafael Junquera sits down with Sebastián Barros, Managing Director at Circle to pull back the curtain on one of the most debated topics in technology today: the rapid expansion of Low Earth Orbit (LEO) satellite constellations, Direct-to-Device (D2D) technology, and what Elon Musk’s real roadmap actually means for traditional mobile operators and global travelers.
Whenever satellite networks make headlines, industry discussions quickly shift toward a dramatic narrative: will satellite constellations render traditional cell towers obsolete? However, as Sebastián explains in this episode, viewing SpaceX merely as a competing mobile carrier misses the broader strategy. Satellite technology is not poised to replace ground-based mobile networks overnight, but it is fundamentally altering global coverage, remote logistics, and mobile internet ecosystems.
Understanding the bigger picture: Mobile data as an enabler, not the end product
To understand Starlink’s movements in telecommunications, you first have to understand how Elon Musk views the broader technology ecosystem. Traditional mobile operators view mobile data as their primary commercial product. They invest heavily in ground infrastructure, build cell towers, and sell monthly data packages directly to consumers.
According to Sebastián, looking at Starlink as just another telecom company selling mobile gigabytes completely misses the point. SpaceX operates a vertically integrated stack that starts with space logistics. Before SpaceX, sending a single kilogram of payload into space cost around $10,000. Through reusable rocket technology, SpaceX brought that cost down to around $300 per kilogram, with targets to reach $100 using Starship. Today, over 90% of everything sent into orbit goes through SpaceX.
By deploying thousands of satellites into Low Earth Orbit, Starlink provides a continuous network covering nearly 90% of the globe. However, the primary purpose of this network is not simply to compete for individual mobile phone subscriptions. It is built to power autonomous Tesla fleets, robotics, off-grid artificial intelligence (such as Grok AI), and future remote computer infrastructure. For non-traditional tech giants, global space coverage is an underlying utility layer that enables larger software platforms and automated systems rather than serving as the final commercial product itself.
What Direct-to-Device (D2D) can and cannot do
One of the most discussed technological breakthroughs in recent months is Direct-to-Device technology. This capability allows everyday, unmodified smartphones to connect straight to satellites in space without requiring specialized dishes, external antennas, or heavy hardware.
While this capability represents a major technological achievement, physical constraints impose clear boundaries on what D2D can realistically deliver. Satellites orbit approximately 500 kilometers above the Earth. Because signals suffer extreme power loss over that distance, especially when trying to penetrate inside buildings, smartphone antennas face significant limitations.
Satellites excel at providing broad geographic reach across vast, unserved regions, but they lack the spectral capacity required to handle high-bandwidth traffic. D2D is ideal for sending text messages, making emergency SOS calls, or handling light IoT data in places where no cell towers exist, such as deserts, oceans, or remote wilderness. It cannot, however, support thousands of people in a dense city streaming high-definition video simultaneously. D2D will not replace urban cellular towers, but acts as a global safety net so users never face a complete network blackout.
Where satellites are capturing high-value market share
Even though satellite constellations will not replace metropolitan cell towers, Starlink is already successfully taking over specific, highly profitable market segments where traditional telecom companies have historically struggled to offer good service.
Aviation and maritime coverage are prime examples. Starlink is rapidly capturing near-monopoly status onboard commercial airlines and cruise ships, replacing slow, expensive legacy satellite providers with high-speed Wi-Fi reaching up to 200 Mbps mid-flight or at sea.
The same shift is happening on land for semi-rural broadband and off-grid industrial operations. For homes, farms, or businesses located outside major fiber optic routes, satellite internet provides a far superior experience compared to legacy copper lines. Similarly, mining, agriculture, and energy companies operating in isolated geographical regions are increasingly choosing satellite setups over costly custom radio tower deployments. By targeting these high-value environments, satellite providers capture substantial revenues without needing ground-level towers in every city neighborhood.
The economic trap: Mobile data as bottled water
During the conversation, Sebastián shares a clear analogy regarding the economic challenge traditional mobile operators currently face: mobile data has become like bottled water. It is absolutely essential for daily life, nobody can survive without it, yet consumers expect to pay less and less for it over time. Over the last two decades, global mobile data consumption has surged by 25% to 30% annually, while the marginal price users are willing to pay per gigabyte continues to drop.
Because selling basic data alone is becoming commoditized, mobile operators can no longer rely solely on legacy plans or physical SIM cards. To remain competitive, the mobile industry must shift away from rigid infrastructure management toward frictionless digital software experiences.
This evolution requires embracing software-first provisioning through eSIM technology, eliminating physical retail friction, and entering strategic partnerships with satellite providers. By combining ground-based cellular networks with orbital coverage, digital mobile platforms can deliver seamless international coverage without overbuilding redundant ground infrastructure.
What this means for the future of global travel
For international travelers, digital nomads, and remote workers, the convergence of LEO satellite constellations and digital eSIM technology marks a major turning point.
The era of total communication dead zones, searching for local physical SIM cards at airport kiosks, and facing unexpected roaming fees is coming to an end. Through instant eSIM activation, travelers can secure local mobile data profiles on their smartphones before stepping off the plane, while satellite networks serve as an extra safety net in ultra-remote locations. Whether you are taking an ocean cruise, flying across continents, or landing in a remote airport, the future of global mobility guarantees instant, automatic, and continuous internet access wherever your journey takes you.
