Ended up getting a Samsung S5e WiFi and I can hotshot my phone if I need any map data. Its working fine but need a longer type c lead. It seems to have all the spec and shipped with android 10
https://www.devicespecifications.com/en/model/b6364f68
Yes I wasn't sure about the barometer so I decided to check out the specs on the approved devices and they all seem to have them but as you say the barometer will be in the drone. The tablets sounds like the sort of price I am looking for and above all it is still available new in the UK