South Africa’s fixed wireless market is growing fast. It solves a specific problem: fibre doesn’t reach everyone, and mobile data is too small and expensive for home use. Terrestrial fixed wireless subscriptions climbed from 890,117 in 2024 to 1,245,762 in 2025, up from just over 208,000 in 2021. These numbers show real demand, not a passing fad.

The catch appears in the evenings. A fixed LTE or 5G box might seem like a bargain at midday but behave like a tired prepaid connection after supper, especially in dense parts of Johannesburg and Cape Town. Marketing promises are usually simple; the lived experience is not.

What fixed wireless is really doing

Fixed wireless occupies a space between two worlds. Installation is faster than fibre because it requires no trenching or civil work. It also provides households with more data than phone bundles, which is why renters, students, and residents in new estates continue to buy it. The service is tied to a specific address, delivered via an LTE or 5G router, and sold as a home connection rather than a mobile network.

That fixed address is both the point and the problem. Move the router, block the signal, or land on a congested tower, and the service can change sharply. Providers also tend to control the deal tightly. Some lock the service to one location, others bundle the router into the contract, and some make the router a rental hidden within the monthly fee. “Uncapped” often means “uncapped until we decide you’ve had enough speed.”

The providers on the board

Rain is the most obvious 5G player. Its fixed home offers are built around unlimited data and speed tiers like 30Mbps, 60Mbps, or best effort. This makes it easy to understand and easy to oversell. The sales pitch is simple, but performance still depends on tower load and the quality of the signal inside the home.

Telkom uses both LTE and 5G. Its SmartBroadband Wireless and SmartBroadband 5G lines typically combine capped data with uncapped options subject to fair-use rules. MTN offers similar Home Wi-Fi and Fixed 5G products, while Vodacom sells Fixed LTE and Fixed 5G bundles with capped data and, in some cases, night-owl allowances designed to soften the deal after dark.

Across the board, the pricing pattern is familiar:

• Entry-level LTE can start around R399 for about 100GB.
• Mid-tier LTE packages often sit around R499 to R699 for 200GB.
• Uncapped 5G typically lands somewhere between R799 and R1,199 a month.

These numbers are close enough to fibre pricing to create a bad habit. People compare them to fixed-line broadband and assume they are buying the same sort of service. They are not.

What the fine print hides

The real product is not the advertised maximum speed. It is the combination of speed policy, data treatment, fair-use rules, and hardware terms. That’s where the fee starts to look less like convenience and more like a gamble.

Rain’s unlimited offers may look clean on paper, but the service is still shaped by tower load and any internal speed policy tied to the package. Telkom and the other big operators often sell “uncapped” access with a fair-use threshold somewhere in the 300GB to 600GB band. Once that limit is crossed, the line can be deprioritised or throttled. In plain English, the package is still open, but your speed is no longer treated as a priority.

Router terms also matter. Some contracts make the device part of a 24-month commitment. This lowers the upfront cost, but early cancellation can leave you paying for hardware you no longer want. Month-to-month plans exist, though they often shift more of the cost into the router purchase.

What happens after dark

Evening slowdown is the part the glossy ads never properly explain. Between about 6pm and 10pm, the same tower that seemed generous at 11am starts serving a neighbourhood full of homes trying to stream, game, call, and download at once. Bandwidth gets shared, and speeds drop. The connection still works, but not in the way people expect after paying for a premium fixed line.

A house with a strong 5G signal might see 60Mbps to 80Mbps off-peak and then slide to 15Mbps to 30Mbps in the evening. A decent LTE line that can manage 30Mbps to 40Mbps earlier in the day can sink to 5Mbps to 10Mbps when the tower fills up. This is enough for browsing, but not enough to pretend you bought fibre.

Indoor placement makes the problem worse. Put a router deep inside a concrete house or on the wrong side of the building, and the speed can collapse even before tower congestion kicks in. A rooftop, window, or external antenna can improve the result, but most buyers don’t learn that until after the contract is signed.

Where it makes sense

Fixed wireless is a sensible home connection when fibre is unavailable, installation must happen quickly, or the household’s usage is moderate. A family that mostly browses, streams in standard definition, checks email, and does the occasional video call can get value from 100GB to 300GB plans. This is especially true in a smaller town where trenching has not arrived and the nearest tower is not overloaded.

It also makes sense for tenants and short-term residents who don’t want a long fibre installation or a 12-month wait for roadworks and permissions. In places like Gqeberha, certain parts of Johannesburg’s fringe, or newer developments around Cape Town, fixed wireless can bridge a real access gap.

When the bill stops making sense

The bad buy is easy to spot. A household paying R800 or more for an “uncapped” 5G line, then getting throttled speed at night, is not getting premium broadband. It is paying premium money for a connection that behaves like a stressed shared service. If fibre is available at a similar price, fixed wireless usually loses on consistency, latency, and evening stability.

Fixed wireless is growing because it fills a gap; it is not replacing fibre. In the right house, with the right signal, it is a practical shortcut to home internet. In the wrong one, it is an expensive way to discover that “uncapped” can still feel very limited once the sun goes down.