According to the Opensignal report for November 2026, based on data collected from user devices between July 1 and September 28, operator MTN won four absolute victories: stable quality, download speed, upload speed, and 5G availability.
In the previous Opensignal report, published in August 2025, which used a slightly different set of categories, MTN won 11 out of 15 awards, including all four overall service quality prizes.
The average download speed for MTN users was 56.4 Mbps, which is 14.4% higher than Vodacom's (49.3 Mbps) and more than double Telkom's figure (25.1 Mbps). Furthermore, MTN showed the best result for stable quality, reaching 71.9%, surpassing Cell C with a score of 66.9%.
This success was achieved despite MTN reducing its capital expenditure on the network in South Africa by 17.1% in the first six months leading up to June. However, MTN's lead is less obvious than the number of awards suggests; Cell C surpasses it in reliability, scoring 904 points compared to MTN's 901 points. Regarding gaming and voice application usage experience, all operators except Rain are approximately one point away from the leader.
Rain: most 5G, weakest experience
Vodacom won the nominations for 5G speed and 5G coverage. Its users recorded an average 5G download speed of 231.1 Mbps, which is 58.2% faster than MTN's (146.1 Mbps), and the 5G upload speed was 26.1 Mbps. Nevertheless, Vodacom users spend only 14.5% of their time connected to 5G, although this is almost double the 7.6% reported in the August 2025 Opensignal report when MTN led with 12.4%. In terms of overall download speed, Vodacom lags behind MTN. As reported by TechCentral in June, the time South Africans spend on the 5G network remains low.
Among users with 5G-capable devices, MTN leads in 5G availability and percentage of time connected to 5G, reaching 56.5% compared to Vodacom's 53.5%.
Rain users connected to 5G for 49.4% of the time, more than three times the rate of MTN users (15.1%), which Opensignal attributes to Rain's 5G-oriented network strategy. However, this did not translate into improved service quality. Rain ranked last among the five operators in reliability (842 points) and stable quality (59.6%). For 5G stable quality, it showed 56.9%, while the other four operators scored in the range of 80.8–82.6%.
Rain's average 5G download speed was 103.2 Mbps, matching Cell C's figures and less than half of Vodacom's. Cell C and Telkom individually won or shared four awards. Cell C shared the reliability award with MTN, and two smaller operators jointly topped the voice application usage experience category. Four operators shared the 5G reliability award, with Telkom showing the highest score—948 points. Telkom also shared the time-on-network award with MTN, as its users had signal 99.2% of the time. Nevertheless, Telkom was the slowest of the five, with an average download speed of 25.1 Mbps and upload speed of 4.7 Mbps. Telkom users with 5G-capable devices were on the 5G network only 14.7% of the time.
