EE also do a mobile data router called 4GEE
https://shop.ee.co.uk/broadband/4g-home-broadband
You can install an external YAGI antenna for the best possible signal too. A number of the outlying farms around here are looking at it as we have a new EE mast giving coverage and line lengths means VDSL and ADSL are both poor. I haven't heard of anyone using it yet, so no information on quality of service.