Can 6G Fix What 5G Broke?
5G was supposed to enable remote surgeries across continents. It would power smart cities with millions of connected devices.
5G was supposed to enable remote surgeries across continents. It would power smart cities with millions of connected devices. Autonomous vehicles would communicate in real time. Manufacturing would revolutionise. Instead, 5G delivered slightly faster phone speeds, patchy coverage, and a massive bill telecoms are still paying off. Most “5G” connections run on 4G infrastructure with a logo change. The killer apps never materialised. Consumers won’t pay extra for it. Now the industry wants you to believe 6G will be different.
6G launches commercially around 2030, with initial trials starting in 2028. Speeds up to 1,000 times faster than 5G. Ultra-low latency measured in microseconds. Holographic communication. Smart cities that actually work this time. The same companies making these promises failed to deliver on 5G.
What 5G Actually Delivered
5G launched with extraordinary claims. Speeds of 20 Gbps. Latency under 1 millisecond. The ability to connect a million devices per square kilometre. These weren’t marketing exaggerations. They were technical specifications published by industry standards bodies. What consumers got was different.
Most 5G networks deliver speeds between 50 and 300 Mbps, only marginally better than 4G LTE. In many cases, 5G performs worse than 4G because carriers deployed it on existing infrastructure without upgrading the backhaul capacity. The “5G” logo on your phone often means you’re connected to a 4G tower with 5G branding. True 5G mmWave, the high-frequency version that actually delivers the promised speeds, covers tiny areas and can’t penetrate buildings.
The enterprise use cases flopped. Network slicing, the technology that would let hospitals and factories buy guaranteed bandwidth, fell flat. Private 5G networks work for companies like Volkswagen and BMW, but deployment costs run into millions. Small and medium businesses can’t justify the expense. The manufacturing revolution where sensors and robots communicate wirelessly hasn’t happened at scale because WiFi and ethernet work fine and cost less.
Remote surgery over 5G networks didn’t materialise. Doctors don’t trust wireless connections for life-critical procedures when fibre optic cables offer more reliable latency. Autonomous vehicles still use onboard sensors and processing rather than relying on 5G vehicle-to-everything communication. Smart cities exist in pilot projects and marketing videos, not in actual deployment affecting millions of residents.
The financial pain is real. Telecoms spent hundreds of billions building 5G infrastructure. In return, consumers won’t pay premium prices for 5G plans. The average person doesn’t notice the difference between 4G and 5G during normal phone use. Streaming video works fine on 4G. Social media loads quickly enough. Email doesn’t need gigabit speeds. Without consumer willingness to pay more, telecoms can’t generate returns on their 5G investments.
Enterprise adoption moves slowly. Large companies operate on five to seven year technology refresh cycles. They’re still evaluating whether 5G offers enough value over existing solutions. Many are waiting for prices to drop or use cases to prove themselves before committing. The revenue projections telecoms used to justify 5G spending assumed faster enterprise adoption than what’s actually happening.
The 6G Promises
6G is expected to deliver speeds up to 1 terabit per second, roughly 100 times faster than 5G’s theoretical maximum and 1,000 times faster than what most 5G networks actually deliver. Latency will drop to microseconds, theoretically enabling true real-time communication between devices. Coverage will extend everywhere through integration with satellite networks, solving 5G’s spotty deployment.
The defining characteristic is AI-native architecture. Unlike 5G where AI was bolted on as an afterthought, 6G embeds AI into the network’s fundamental design from day one. Networks will optimise themselves, predict failures before they happen, dynamically allocate spectrum, and manage billions of devices without human intervention. This represents a shift from hardware-defined networks to software-defined, self-learning systems.
NVIDIA is positioning itself to own 6G infrastructure the way it owns AI chips. The company announced partnerships with T-Mobile, SoftBank, Deutsche Telekom, Nokia, and BT Group to build AI-RAN, artificial intelligence radio access networking. This means NVIDIA GPUs in every cell tower, processing network traffic in real time. If it works, NVIDIA captures a massive new market. If it doesn’t, telecoms waste billions on unnecessary computing power.
The use cases sound transformative. Holographic telepresence where life-sized 3D representations of people appear in physical spaces. Truly immersive metaverse experiences without lag or disconnection. Collaborative robots in factories coordinating thousands of machines simultaneously. Autonomous vehicles that can sense and react to road conditions instantly through intelligent edge nodes. Remote robotic surgeries with near-zero latency that doctors actually trust.
6G will integrate sensing capabilities, allowing networks to detect physical objects, measure distances, and track movement with centimetre-level precision. This creates “network as a sensor” where telecommunications infrastructure doubles as a monitoring system for smart cities, industrial facilities, and autonomous systems. The distinction between communication network and sensor network disappears.
Coverage becomes global through satellite integration. 5G struggles in rural areas where building towers isn’t economically viable. 6G promises ubiquitous connectivity whether you’re on a mountain, at sea, or in the air. This relies on low Earth orbit satellite constellations working seamlessly with terrestrial networks, a technical challenge that hasn’t been solved yet but sounds compelling in presentations.
Why 6G Might Actually Work
The technology has matured. 5G launched before the ecosystem was ready. Devices couldn’t handle mmWave frequencies efficiently. Backhaul infrastructure couldn’t support the bandwidth. 6G benefits from six more years of hardware development.
AI capabilities have exploded since 5G planning began. When telecoms designed 5G in the early 2010s, AI meant basic machine learning models. Now we have transformer models, edge AI chips, and distributed computing that can actually deliver on self-optimising networks.
Enterprise demand for private networks is real. Companies that deployed private 5G networks see value in dedicated infrastructure for manufacturing and logistics. The business case improves if 6G serves enterprise customers willing to pay premium prices rather than relying on consumer subscriptions.
Why It Probably Won’t
Telecoms spent hundreds of billions on 5G infrastructure that isn’t generating expected returns. Now they need to build another generation requiring even more capital. Banks and investors are skeptical about funding another wireless generation when the current one underperforms financially.
Nobody found applications that required 5G capabilities and generated revenue. 6G promises the same use cases, remote surgery, autonomous vehicles, smart cities, that didn’t work for 5G. Faster speeds and lower latency don’t create demand if the underlying use case isn’t compelling.
6G requires denser networks with more base stations, each packed with AI processors consuming significant power. Climate commitments and electricity costs are rising. Telecoms must justify burning more energy to deliver marginal improvements consumers don’t value.
Western governments are writing 6G security rules to exclude Chinese vendors before 6G exists. But China is developing its own 6G ecosystem independent of Western standards. A divided global market increases costs and reduces economies of scale.
Trevor Francis, CEO of 46 Labs, told Built In: “5G is still in its prime and, as adoption remains low, 5G carriers struggle to see a return on their investment. Lack of 5G adoption will likely push the need for 6G back even further.”
The Real Problem
5G’s failure wasn’t technical. The technology mostly works as designed when deployed properly. The failure was economic. Telecoms built expensive infrastructure solving problems people didn’t have, then couldn’t convince anyone to pay for it. 6G repeats this pattern with bigger promises and higher costs.
Do consumers value terabit speeds when gigabit already exceeds their needs? Do enterprises need AI-native networks when current solutions work? 5G infrastructure already handles current demand adequately. Optimising 6G networks that aren’t needed doesn’t create value.
6G will happen anyway because the alternative is admitting the wireless generation upgrade cycle has become pointless. Telecoms need something to sell. Equipment manufacturers need products to build. Standards bodies need work to do. 6G keeps everyone employed and justifies continued investment even if end users don’t benefit.
Commercial 6G networks launch around 2030, probably starting with trials at the 2028 Summer Olympics. Early deployments will be limited to enterprise private networks and research institutions. Mass consumer deployment happens slowly through the 2030s.
The promises will be scaled back. Terabit speeds become available in controlled environments rather than everywhere. Coverage remains spotty despite satellite integration promises. Manufacturing will adopt private 6G networks. Healthcare will use it for specific applications. These successes will be real but limited.
Consumer adoption will be slow. People will upgrade to 6G phones when replacing existing devices, not because 6G offers compelling new capabilities. Telecoms will sunset 4G networks gradually, forcing upgrades. The transition will take a decade or more.
The financial returns will disappoint. Telecoms will spend hundreds of billions building 6G infrastructure. Revenue growth will be modest. The return on investment will be lower than projected but probably positive enough to avoid total write-offs.
6G will become the new normal not because it’s revolutionary but because it’s inevitable. Technology generations advance whether or not advancement creates proportional value. 6G will roll out, provide incremental benefits, cost enormous amounts, and set the stage for arguments about whether 7G is necessary around 2040.
5G’s problem was mismatched expectations and economics, not insufficient technology. 6G repeats that mistake with higher numbers and fancier features. It might be better technology. It probably won’t be better business.
Sources:
- Nokia
- Built In
- Digital Regulation Platform – ITU
- SiliconANGLE
- AI News International
- CKGSB Knowledge
- Light Reading
