The first official Symbian OS phone was the 9210 communicator made by Nokia. These versions of the operating systems were known as the Symbian v6.x. The user interfaces that were developed at this time later evolved into the Series 60, Series 80, and others that are being used now. Version 6.0 was the first release to have Bluetooth support.
The next installment was the v7.x, which supported the various user interfaces mentioned earlier. This release added the support for EDGE. The next release, v8.0, was relatively undistinguished, although the phone manufacturers were able to incorporate the CDMA technology into their products. Its successor, the v8.1, ushered in the era of N-series phones. N-series phones from Nokia were all equipped with Carl Zeiss optics, creating a niche all their own in the mobile market.