VOXI is a very fast network, with the same identical speeds and coverage as Vodafone.
In OpenSignal’s September 2021 report, Vodafone was ranked the 3rd fastest network in the UK, with average download speeds of 21.6 Mbps and average upload speeds of 7.4 Mbps with its 4G network.
VOXI via Vodafone slightly lags behind the other major networks when it comes to 5G speeds, with average download speeds of 59.1Mbps. However, this is still very fast, and will be a negligible difference in real world usage.