It’s far more than just a tablet though.no, but I have a 9 year old Zumo 390 that will need to be replaced in due course so the various options are of interest and under scrutiny
DMD seems to be well regarded but their hardware is prohibitively expensive for an Android tablet. Using their app on another device might be an option.
It’s a fully mil-spec ruggedised device, with mil-spec connections, dedicated mounts, modules, etc.
Maybe have a proper look before commenting and you’d be better informed,