Europe’s Galileo Is Already in 5 Billion Devices, and It’s Testing New Satellites to Outmuscle GPS in Cities

Most Americans have never heard of Galileo. But if you’ve used a smartphone map, hailed a ride, tracked a package, or relied on a car’s emergency system lately, there’s a good chance you’ve benefited from it anyway.

European officials say more than5 billion devicesnow tap into Galileo, the European Union’s satellite navigation system, often quietly, alongside GPS. Now Europe is pushing for an edge where navigation struggles most: dense cities, indoors, and other signal-hostile places.

A new “lower layer” of satellites aims to make navigation tougher to jam, and harder to lose

On March 28, Europe launched two micro-satellites for a mission calledCélestefrom New Zealand, designed to test a new, lower-orbit navigation layer about317 milesabove Earth (roughly510 kilometers).

The pitch is straightforward: satellites closer to the ground can deliver stronger signals, which can help phones and receivers hold a lock between skyscrapers, inside buildings, and even in polar regions. Europe isn’t replacing Galileo’s main constellation, it’s trying to reinforce it where modern life actually uses navigation: in crowded, connected, interference-filled environments.

How Galileo got into billions of devices without a marketing campaign

The “5 billion” milestone didn’t happen by accident. It was driven by regulation, something Americans may recognize from how the U.S. mandated 911 location capabilities over time, but on a broader hardware-compatibility scale.

Since April 1, 2018, every new passenger car sold in the EU has had to includeeCall, an automatic crash-alert system compatible with Galileo. That requirement pushed automakers toward multi-constellation receivers, chips that can listen to GPS, Galileo, and other systems at once.

Then came phones. Since March 17, 2022, smartphones sold in the EU must be compatible with Galileo. Because smartphone supply chains are global, that same hardware often ships worldwide, spreading Galileo support far beyond Europe without consumers ever noticing.

Adoption moved fast: compatible smartphones jumped from about100 millionin early 2018 to1 billionin 2019, according to the figures cited. Chipmakers now reportedly support Galileo in about95%of mobile designs, and roughly1,860phone and tablet models are listed as compatible.

Why cities are the real battleground for satellite navigation

For everyday users, the benefit of Galileo usually comes from combining signals, your phone blends multiple satellite systems to improve stability for navigation, delivery apps, fitness tracking, and emergency location.

But cities remain brutal for satellite positioning. Signals bounce off glass and concrete, get blocked by buildings, and compete with a noisy radio environment. A stronger, more robust signal from a lower-orbit layer could mean faster “first fix,” fewer dropouts, and better performance when your phone is in a pocket or behind certain windshields designed to reduce heat.

Europe’s longer-term idea is often described asLEO-PNT, a low-Earth-orbit positioning, navigation, and timing layer that complements Galileo. The European Commission flagged the approach in 2023 as a potential response to deliberate interference, but testing isn’t the same as deploying a full operational network.

Europe has spent about $20.5 billion on Galileo, and calls it an insurance policy

Galileo is expensive, and Europe isn’t shy about the price tag. The EU expects to invest more than€19 billionfrom 2003 to 2027, about$20.5 billionat today’s exchange rates.

European leaders frame that spending as strategic autonomy: a way to avoid total dependence on a system controlled by another power. (GPS is operated by the U.S. Space Force, even though it’s freely used worldwide.) Finnish member of the European ParliamentAura Sallahas argued that Europe’s broader reliance on U.S. tech is a vulnerability, Galileo, in this view, is part of the fix.

Technically, Galileo runs on roughly30 satellites, with24in primary operational slots and6spares. The redundancy is designed to ensure users can see at least four satellites at once, the minimum needed to compute a position.

GPS jamming isn’t hypothetical, and the Baltic Sea became a warning sign

The push for resilience isn’t just geopolitical theater. In 2025, Sweden’s maritime authority reported major GPS disruptions in theBaltic Sea, including jamming and spoofing, fake signals that can trick receivers into calculating the wrong location.

At sea, being off by a few hundred yards can be dangerous: it can skew routes, push ships toward restricted areas, raise collision risks, or simply erode trust in onboard systems.

And navigation satellites do more than guide vehicles. They provide ultra-precise timing used to synchronize critical infrastructure, power grids, financial networks, and emergency services. European estimates cited in the article suggest sectors dependent on reliable satellite signals account for roughly10%of the EU’s annual economic output.

Precision, emergency response, and the high-stakes business of “where” and “when”

Galileo’s backers argue it can outperform GPS in precision, citing best-case capabilities down to about7.9 inches(roughly20 centimeters) for certain services, plus extremely fine time-stamping. For most consumers using free services, the real-world gain is usually steadier performance, not inch-level accuracy.

Emergency response is where reliability matters most. With eCall in new EU cars and satellite-aided search-and-rescue systems, faster and more dependable location data can shave minutes off response times, minutes that can decide outcomes.

The next question is whether Céleste’s low-orbit experiments translate into measurable improvements for everyday users, and whether Europe is willing to pay to scale it. If interference and spoofing keep spreading, the value of a tougher, layered navigation system could look less like a luxury and more like infrastructure.