[5] Opera Mobile used the Presto layout engine until version 15, which was replaced by Webkit, then Blink and supports many web standards, as well as Ajax.

Opera Mobile 10 includes a "Speed Dial" feature, which allows the user to add links shown as thumbnail images in a page displayed when a new tab is opened.

It also includes a password manager and pop-up handler, and it supports copy and paste, address auto-complete, zooming, history, and bookmarks (removed in Opera Mobile 15).

Opera Mini is a mobile web browser exclusively for Android, targeted at low-end devices and lower bandwidth connections.

[18] In March 2021, in celebration of the three-year anniversary of the browser, the iOS version was rebranded to simply Opera.