5G in South Africa is fast, properly fast. When the signal appears, downloads fly, videos behave and the network feels every bit as modern as the adverts promise. The strange part is how rarely that moment happens. South Africa was one of Africa’s early 5G adopters, yet many people with 5G phones still spend most of their connected lives on 4G. We have built the fast lane, but most drivers are still being directed onto the older road.
New first-quarter 2026 data from Opensignal puts the contradiction into sharp focus. Across all users measured, only 3.7% of connected time was spent on 5G. Even among people who already owned a 5G-capable phone, the figure rose to just 11.1%. Those same users spent 86.1% of their time on 4G.
ICASA figures add another twist. South Africa’s 5G population coverage reached 58% in 2025, up from 46.6% a year earlier. Coverage is growing on paper, but everyday connected time tells a more complicated story.
This is not because the faster network fails to deliver. Average 5G download speeds reached 196.4 Mbps, almost five times the 39.4 Mbps recorded on 4G. Opensignal’s Consistent Quality measure, which looks at whether a connection can reliably handle common mobile applications, reached 81% on 5G compared with 66.2% on 4G. In other words, the product works beautifully. It simply does not appear often enough.
That helps explain a familiar experience. Your phone may flash a 5G symbol while you are outside or moving through a busy urban area, only to slip back to 4G inside a building or farther from the nearest site. The 5G network can feel less like somewhere your phone lives and more like somewhere it briefly visits.
The reason lies in the way radio spectrum is being used. South Africa’s current 5G traffic is concentrated in mid-band spectrum, particularly 3.5 GHz. Mid-band is excellent at delivering high speed and capacity where coverage is strong, but it does not travel as far or penetrate buildings as effectively as lower frequencies.
Low-band spectrum at 700 MHz and 800 MHz is better suited to reaching indoors, covering wider areas and holding a signal at the edges of a cell. Yet Opensignal found that 700 MHz remained 99.7% on 4G during the first quarter, while 800 MHz was still entirely on 4G. This has left 5G in South Africa with a powerful capacity layer, but without the broad coverage layer needed to make it an everyday connection.
The spectrum is available, but changing how it is used is not as simple as flicking a switch. Millions of people still depend on 4G, so operators must balance expanding 5G with protecting the network that carries most current traffic. Even so, the figures make one thing clear: better 5G reach will depend less on selling more compatible phones and more on how operators deploy the spectrum they already have.
India offers an interesting comparison. Its users spent 34.6% of their connected time on 5G in the same quarter. The countries differ enormously, but India combines mid-band speed with a more visible low-band 5G layer. That keeps phones connected for longer, including in places where a higher-frequency signal struggles.
The next chapter for 5G in South Africa is therefore not a race to prove that the technology is fast. That argument has already been won. The real test is whether it can become consistently available in homes, offices and the spaces between major urban centres. When the faster network stops being an occasional icon and becomes the signal people use throughout the day, South Africa’s impressive 5G speeds will finally matter on a much larger scale.
