Three mobile 4G on iPad Pro: 0.8Mbps down, 1.6Mbps up
This worked once, then crashed repeatedly and I couldn't get it to work again on any device.
Moving to speediest.net:
iPad Pro/Three/4G: Download 0.18Mbps, Upload 4.14Mbps
iPhone 12/EE/4G: Download 12Mbps, won't show Upload on mobile annoyingly but I routinely turn off wifi to upload photographs from my phone that I've taken with my camera
M1 Mac Air/Zen ADSL: Download 9.12, Upload 0.55Mbps
Ok, using the Ofcom speed checker:
Three mobile 4G on iPad Pro: 0.8Mbps down, 1.6Mbps up
This worked once, then crashed repeatedly and I couldn't get it to work again on any device.
Moving to speediest.net:
iPad Pro/Three/4G: Download 0.18Mbps, Upload 4.14Mbps
iPhone 12/EE/4G: Download 12Mbps, won't show Upload on mobile annoyingly but I routinely turn off wifi to upload photographs from my phone that I've taken with my camera
M1 Mac Air/Zen ADSL: Download 9.12, Upload 0.55Mbps