I *did not* / will *not* test:

    Phone calls & SMS / MMS functionality 

    I haven’t bothered plugging them into a display. 

    Email (...) I’ve been too lazy to try setting this up 
      
    Cameras 

    GPS / location

Anyone who expected an article like "I actually tested those phones in real life and will tell if they are actually suitable as phones", don't expect.

(Article is not empty, does mentions how these machines behave on the GUI side, data-only SIM, web browsing, music, charging.)