Opera Mini for Android revamped with new compression technology

In the newest version of Opera Mini mobile browser for Android, users can for the first time switch between two different data compression modes: High and Extreme. With these two modes, users can optimize their data compression for different network conditions.
--
Opera Mini's compression technology routes requested webpages through one of its data-saving servers. The server removes any extraneous page elements, shaves off image pixels a user won't miss, diagnoses the state of the user's connection and compresses any downloads. All this before sending the page back to the user's device.
http://www.operasoftware.com/press/releases/mobile/2015-09-08 
https://play.google.com/store/apps/details?id=com.opera.mini.native&hl=en