I recently build an android app using html, css, javascript and running them through phonegap to create the actual app. One of the problems I encountered in one phone is that the text looks too small. Also some images are a little small as well. I added a viewport meta tag but it doesnt seem to work either. Here are the meta tags:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi" />`
This is how it looks
This is how its supposed to look:
I had the same problem and solved it changing the viewport. I also thought the problem was phonegap, but it really was that the devices used for testing had different dpi.
My solution was to change the target-densitydpi on the viewport to:
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, target-densitydpi=medium-dpi, user-scalable=0" />
Hope it helps