Sendo X is the model of smartphone class developed on the platform Symbian OS v6.1, Series 60 v1.0 UI. The equipment: Tri-band (GSM 900/1800/1900), color TFT display, WAP 2.0, GPRS class 8, integrated VGA-camera, Java, Bluetooth, media player: audio (WAV, AIFF, MP3, AAC), video: (RealVideo, MPEG4, H.263).