All Three SIMs have been 5G-capable for a long time. Even back to when I moved to them almost a year and a half ago. That includes the £1 ones from newsagents and such outlets.
(PS - thanks for that signal analysis number to dial. I was too tired at the time, too busy since, and definitely not in the mood right now

)
Edit: At no extra charge if you can get such a signal.
My broadband basic info/help site -
www.robertos.me.uk. Domains, sites and mail hosting -
Tsohost &
Ionos.
Connection - Three B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up. 1+ 8 Pro max 80Mbps down, 24Mbps up.
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"They say travel broadens the mind; but you must have the mind." G K Chesterton
Edited by RobertoS (Fri 29-May-20 00:38:09)