[hornychz]

Any idea about the bigger display ?

Hi,

It's not as simple as it seems to be ... Somewhere in the forum you will find the answer to why the size and resolution of the display should be preserved.
If you need something bigger, I recommend building a small computer with RPi, connecting a 7 "or 10" display and displaying some of your own site
containing the measured data. I'm just doing that with CumulusMX (display 7"):

  

(Another option - for the future - is the using of a new system, which is still in the private development - is a 4Pro system. Some components of this system
are already available - see http://wiki.weatherduino.com - but the final version of RX is still not available.)