The W660i is a Walman phone introduced by Sony Ericsson. The phone is a 3G phone and benefits from higher speed transfers of data as well as the ability to make video calls. With it being in the W range (meaning Walkman) its boasting feature is music. The walkman range make excellent MP3 players. The software which runs the music side is Walkman Player 2.0.
As well as being a great phone for music the W660i has a 2 megapixel camera built in. Unfortunatly I think 2 megapixel is old now with 3.2 being popular as well as 5 megapixels on phones such as the Nokia N95. The screen runs at 176x220 pixels (TFT) and capable of 262k colours. The phone doesnt have too much memory (just 16MB) but there is support for Sonys Memory Stick Micro M2 card.
Via: TechEBlog