If you bought a 5G phone in 2021 expecting the wireless revolution you were promised, you probably felt some disappointment. The early 5G rollout was plagued by coverage gaps, battery drain and speeds that barely exceeded good 4G LTE. Fast forward to 2025, and the picture looks different: 5G has quietly become the default, and the groundwork for 6G is already being laid.
According to the GSMA, there were 1.9 billion 5G connections worldwide at the end of 2024, covering roughly 45% of the global population. In North America, 5G penetration passed 60%. In South Korea — the global 5G leader — it exceeded 80%. The technology is no longer emerging; it is mainstream. But the conversation is already shifting to what comes next.
5G’s Real-World Performance
The 5G standard specifies three use cases: enhanced mobile broadband (faster downloads), ultra-reliable low-latency communication (for autonomous vehicles and industrial automation) and massive machine-type communication (for IoT devices). The first has been delivered. The second and third are still works in progress.
Verizon, AT&T and T-Mobile have all deployed mid-band 5G spectrum (the “C-band” in the US), which has dramatically improved real-world speeds. Opensignal’s January 2025 report found average 5G download speeds of 190 Mbps in the US, up from 95 Mbps in 2022. But the millimetre-wave spectrum that was supposed to deliver gigabit speeds in dense urban areas? The physics have not cooperated: mmWave signals are easily blocked by buildings, foliage and even rain. Carriers have quietly deprioritised mmWave deployment in favour of more reliable mid-band spectrum.
The enterprise case for 5G is advancing more slowly. Private 5G networks — cellular networks built and operated by individual companies within their facilities — are gaining traction in manufacturing and logistics. BMW, Volkswagen and Ford have all deployed private 5G networks in their factories, enabling real-time monitoring of production lines and autonomous guided vehicles. The market for private 5G is projected to reach $10 billion by 2028, according to IDC, but it remains a fraction of the consumer 5G market.
What 6G Will Actually Be
The ITU-R, the United Nations agency that coordinates global radio spectrum, is defining the 6G standard under the working title IMT-2030. The specification is expected to be finalised by 2028, with initial commercial deployments around 2030. The headline numbers being discussed — peak data rates of 1 terabit per second, latency under 1 millisecond, spectrum up to and including terahertz frequencies — are eye-catching, but they mask the more practical question of what 6G is actually for.
Where 5G was designed for phones, 6G is being designed for everything else. The ITU-R’s framework for IMT-2030 lists six usage scenarios, including “integrated sensing and communication” (using radio waves not just to transmit data but to perceive the environment — think radar-like sensing built into the network), “ubiquitous connectivity” (closing the remaining coverage gaps, including in rural areas and at sea) and “AI-native communication” (networks that use machine learning to optimise themselves in real time).
Who Is Leading
China is investing heavily in 6G research. Huawei, in particular, has published more 6G-related research papers than any other company, and China has launched experimental 6G test satellites. The United States, wary of losing the 6G race the way it fell behind in 5G infrastructure (China’s Huawei and ZTE dominate global 5G equipment), has formed the Next G Alliance, a consortium including Qualcomm, Apple, Google and AT&T aimed at ensuring North American leadership.
South Korea, which was the first country to launch a commercial 5G network in 2019, has set a target of launching the world’s first 6G pilot services in 2028. Japan and the European Union have both established dedicated 6G research programmes with multi-billion-euro budgets.
The Satellites Are Also in Play
One of the most significant shifts in connectivity in the 2020s has been the integration of satellite networks with terrestrial cellular. Starlink’s direct-to-cell service, which began beta testing in 2024, lets standard 5G phones connect to satellites without any special hardware. AST SpaceMobile, backed by AT&T, Vodafone and Rakuten, has demonstrated similar capabilities. By 2030, the line between “satellite” and “cellular” may disappear entirely, with devices seamlessly switching between terrestrial and orbital connections depending on coverage.
This convergence has implications far beyond faster downloads. Universal connectivity — genuinely global, not just urban — could transform agriculture, disaster response, shipping and outdoor recreation. It also raises serious geopolitical questions about who controls the infrastructure when there are no geographic borders to negotiate.