Opera for Android used to offer an Off-Road mode that compressed websites to help users use less data. But users sometimes ran into issues with compatibility. Now the company is fixing things by bring Opera Turbo to its main Android app, with the hope of letting you save data without sacrificing speed or formatting.
Opera Turbo has been available on desktops for the better part of a decade. It runs on different servers than the Android version's old Off-Road mode (which used the servers behind Opera Mini). The feature still compresses non-HTTPs webpages, but the actual rendering happens on your end. This cuts away at site-compatibility issues and problems that arose from complex interactions.
This version of Opera can also sync tabs across multiple devices. For other additions, here's the changelog.
Tab synchronization: new view for synced tabs, new layout in Tab manager
Opera Turbo replaces Off-road mode (new compression technology with full web compatibility)