Hi,
that could work out rather expensive! Is it £5 regardless of how much or little data you use in a day then £5 for the next day?
I use a Three 12gb data SIM which is valid for a year and we used about 7gb in a short 12 day break in Spain recently. We don't attempt to stream films etc. I have the next one ready to use, bought from My memory somewhat cheaper than from Three.
We hardly use calls and text while abroad but you can buy various add-on packages for a payg Three SIM that lasts 30 days which allows tethering which I be never tried as we use the huawei mifi
Steve