For most of the last twenty years, cable had no serious competitor in areas without fiber. That is no longer true. 5G home internet from the major mobile carriers has taken millions of subscribers from cable operators in a remarkably short time, and it has done so not by being technically superior but by being cheaper, simpler and more honest about what it costs.
This comparison sets out where each one genuinely wins, and how to work out which is right for your address rather than in general.
The technologies, briefly
Cable internet arrives over a hybrid fiber-coaxial network: fiber to a neighborhood node, coaxial cable into your home. The coax segment is shared with your neighbors and its capacity is divided asymmetrically between download and upload.
5G home internet arrives over the same mobile network that serves phones. A gateway in your home connects to a nearby tower. Capacity is shared with every other user on that tower, including phone users, who are generally given priority.
Both are shared media. The difference is what they are shared with and how predictable that sharing is.
Speed
Cable wins on peak download speed, and it is not close at the top end. Gigabit and multi-gigabit cable tiers are widely available, and cable delivers close to its advertised figures in most markets. 5G home internet delivers speeds that are strong for ordinary use but rarely reach cable’s upper tiers, and the figure varies through the day.
The question is whether that matters. For a household streaming, browsing and working, both are comfortably sufficient. The peak advantage only becomes real for very large households, frequent large downloads, or anyone moving substantial files. Our guide to picking the right speed is worth reading before you assume you need the higher ceiling.
On upload, the two are closer than people expect. Cable’s upstream is narrow by design, and entry-tier cable plans often have upload figures that 5G home internet matches or beats. If you upload seriously, neither is ideal and fiber is the answer.
Consistency
This is where cable wins on merit. A wired connection to a node is more predictable than a radio link to a tower. Cable slows at peak hours; fixed wireless varies more, and it varies with things you cannot see, such as how many people are using the tower and what the weather is doing to signal propagation.
Latency follows the same pattern. Cable latency is low and reasonably stable. Fixed wireless latency is higher and jitter is more pronounced, which matters for competitive gaming and, to a lesser extent, for video calls. Our gaming guide explains why jitter matters more than average ping.
Price, and why 5G is winning
This is where fixed wireless wins decisively, and the advantage is structural rather than promotional.
A cable plan is sold at an introductory rate for a defined term, after which it steps up to a standard rate that is substantially higher. Equipment rental is usually billed monthly on top. Taxes and fees are added to the quoted price. A data cap may apply, with an unlimited add-on sold separately. The result is that the number you were quoted and the number on your statement in month twenty-five bear little relationship to each other.
A 5G home internet plan is typically sold at a flat monthly rate that includes the gateway, frequently includes taxes and fees in the quoted figure, requires no contract, has no promotional cliff and no data cap in the conventional sense. Existing mobile customers usually get a further discount that can make it dramatically cheaper.
Over three years, the difference is often very large. The method for comparing them honestly is in our guide to lowering your monthly internet bill: build a blended three-year figure for each option including all fees, and compare those rather than the headlines.
5G home internet availability is capacity-based. Carriers only sell it where the local tower has spare capacity, so two nearby addresses can get different answers. Always check your exact address, and here is how to confirm internet options for your address.
Setup and flexibility
Fixed wireless wins here too. The gateway arrives in the mail and takes about ten minutes to set up. There is no technician visit, no appointment window and no installation charge. Because there is no contract, you can leave whenever you want, and because the hardware is portable, moving house is trivial.
Cable usually involves either a self-install kit or a technician visit, and switching away can involve returning equipment and, on contract plans, an early termination fee.
The situations where each wins
Choose cable if
You need consistently high download speeds, you have a large household with many simultaneous heavy users, you game competitively, or your work depends on a connection whose behavior does not vary. Cable is also the better choice if fixed wireless signal at your address is marginal, which no amount of good pricing will fix.
Choose 5G home internet if
Your usage is ordinary — streaming, browsing, homework, video calls — and you are tired of a bill that climbs every year. It is also the clear choice if you rent, move frequently, or want to escape a contract. And if your current alternative is legacy DSL, fixed wireless will almost certainly be a substantial upgrade rather than a compromise; see our rural internet guide. If your realistic options are wireless rather than wired, our comparison of fixed wireless and satellite internet weighs them directly.
The sensible way to decide
Because fixed wireless performance is address-specific and contract-free, you can simply test it. Order the gateway, keep your cable service running for the trial period, and test both properly during evening peak hours using the method in our guide to checking your internet speed. Pay attention to latency and jitter, not just the download figure, and test at the times you actually use the connection.
If the fixed wireless holds up, cancel the cable and keep the difference. If it does not, send the gateway back. That is a genuinely low-risk experiment, and it is the reason so many households have made the switch.
The short version
Cable is the better technology. 5G home internet is usually the better deal. For a household with ordinary needs and a good signal, the deal wins, and the loss of peak performance is not something anyone in the house will notice. For heavy users, competitive gamers and anyone whose livelihood depends on a predictable connection, the technology wins and cable is worth the extra. And if fiber is available at your address, it beats both — see fiber vs cable vs DSL.
For the provider-specific versions of this comparison, see T-Mobile Home Internet vs Xfinity and T-Mobile vs Verizon 5G Home Internet.