A look at China's 5G network, which dwarfs the US efforts but still only covers 8% of the population, while South Korea's 5G covers 25%
China is leading the way in the size and consistency of its 5G network — HONG KONG—By most measures, China is no longer just leading the U.S. when it comes to 5G. Tweets: @jchengwsj Tweets: Jonathan Cheng / @jchengwsj : China is no longer just leading the U.S. on 5G. It is running away with the game. China has more 5G subscribers than the U.S., not just in total but per capita. It has more 5G smartphones for sale, at lower prices. Connections are faster. @DanStrumpf https://www.wsj.com/...
Context & Ripple Effects
The scale of China's 5G push has been building for years: an earlier CTIA study credited its lead over the US and Japan to a clear rollout plan and government backing, and Deloitte's spending tally put the gap at $24B in infrastructure and over 320K additional cell sites since 2015. Beijing had already made 5G a strategic priority for carriers and vendors, which is why the network's sheer size and consistency now outrun America's on subscribers, device availability, pricing, and speed.
What this report adds is the denominator problem: despite running away from the US in absolute terms, China's network reaches only 8% of its population, while South Korea — the country the CTIA study flagged alongside China back in 2018 — covers 25%. A later analysis showing competitors gaining on Huawei and Apple in handsets, and the US catching up in per-capita subscriptions, suggests the headline numbers flatter the leader.
First-order effects
- China's carriers now face the expensive half of the buildout: converting a massive urban footprint into national coverage means pushing 5G into the less populated areas where per-subscriber economics get worse.
- South Korea's 25% coverage sets the benchmark Chinese operators are measured against, undercutting the 'running away with the game' framing even as Chinese consumers get faster connections and cheaper 5G phones than their US counterparts.
Second-order effects
- Volume at home keeps Chinese equipment vendors and handset makers running at scale, squeezing rivals like Apple and Huawei's competitors on price in exactly the way the later handset-market analysis describes.
- The US high-band-first spectrum strategy — which left it alone in betting on millimeter wave and short on mid-band for wide-area coverage — looks increasingly like the structural reason its per-capita subscriptions trail both China and South Korea.
Third-order effects
- If the pattern holds, 5G leadership becomes a contest between two models: China's state-directed, capital-heavy rollout versus market-paced builds elsewhere — with coverage percentages, not raw site counts, emerging as the scorecard regulators and policymakers watch.
- Spectrum allocation decisions made years earlier are proving decisive for who can cover populations cheaply, raising the odds governments treat mid-band holdings as strategic assets rather than auction revenue.
The trend: National 5G competition is shifting from raw network scale toward per-capita coverage and spectrum strategy, where China's state-funded buildout meets the limits of geography and the US mid-band gap starts to close.