Orfox: Tor Browser for Android

Orfox is built from the same source code as Tor Browser (which is built upon Firefox), but with a few minor modifications to the privacy enhancing features to make them compatible with Firefox for Android and the Android operating system.

Orfox REQUIRES Orbot app for Android to connect to the Tor network.

APUS Browser-Fast,Easy,Small

APUS Browser is a lightweight mobile browser that' s tiny, easy-to-use, and fastest – undoubtedly one of the best Android browsers on the market.

Doing away with nonessential features, APUS Browser delivers a frictionless user experience designed for one task - to search the web effortlessly, within a reliable and speed browser that’s smaller than 2MB.
No-Image mode: Turn on 'No-image' to disable images and video to load pages swiftly and save on mobile data.

Opera Mobile (Classic)

Opera Mobile Classic provides a reliable, feature-filled alternative to the built-in Android web browser.
Essentially, Opera Mobile Classic looks and feels like Opera Mini for Android, retaining the same user interface and offering all the great features of that program. The app has been superseded by the more recent Opera Browser for Android, which features a fresher user interface which may appeal to certain people.

Opera Mobile Classic download is no longer available in Google Play

Read here for Opera Classic LAST update for Android Lollipop (12.1.9)

Download Opera Mobile (12.1.9) (Android 1.6+)  from here:  International