Symbian Belle is an update to Symbian Anna and the second update to the Symbian^3 platform. In the summer of 2011 videos showing an early leaked version of Belle running on a Nokia N8 were published on YouTube.
On August 24, 2011, Nokia announced Belle officially for four new smartphones, the Nokia 600, Nokia 603, Nokia 700, and Nokia 701. They also announced that Belle would be coming to all existing Symbian^3 devices in the fourth quarter of 2011.
Symbian Belle adds to Anna's improvements with a pull-down status/notification bar, deeper near field communication integration, free-form re-sizable homescreen widgets, and six homescreens instead of the previous three.