Web JavaScript APIs that you can use in WebKit WebView Android for your applications web oriented
See this example to get network type and max download
var getconnection = window.navigator.connection, connectiontype = getconnection.type;
var maxdownload = getconnection.downlinkMax
var logConnectionType = function(){
alert('Connection type: ' + connectiontype + 'Max Download: ' + maxdownload);
}
logConnectionType();
navigator.connection.addEventListener('change', logConnectionType);
Demo jsfiddle: https://jsfiddle.net/15wy4pa6/