Introduction to Symbian OS: Have you always wanted to know which cellphone falls into which category? The following information will clear all your doubts away. Symbian OS software written for the S60 Platform 1st edition (S60v1) or 2nd edition (S60v2) is not binary compatible with S60 3rd edition (S60v3), because it uses a new, hardened version of the Symbian OS (v9.1). * Series 60 Version 1.0, based on Symbian OS 6.1: * Nokia 7650 (development name Calypso) Ä176 x 208Ñ * Series 60 1st Edition (Version 1.2), based on Symbian OS 6.1: * Nokia 3600 Ä176 x 208Ñ * Nokia 3620 (GSM 850/1900 successor of the 3650) Ä176 x 208Ñ * Nokia 3650 Ä176 x 208Ñ * Nokia 3660 (GSM 900/1800/1900 successor of the 3650) Ä176 x 208Ñ * Nokia N-Gage and N-Gage QD Ä176 x 208Ñ * Samsung SGH-D700 * Sendo X * Sendo X2 * Siemens SX1 * Series 60 2nd Edition (Version 2.0), based on Symbian OS 7.0s: Contains new features like J2ME/MIDP 2.0 support and themes * Nokia 6600 (development name Calimero) Ä176 x 208Ñ * Samsung SGH-D710 * Series 60 2nd Edition, Feature Pack 1 (Version 2.1), based on Symbian OS 7.0s: * Nokia 3230 Ä176 x 208Ñ * Nokia 6260 Ä176 x 208Ñ * Nokia 6620 Ä176 x 208Ñ * Nokia 6670 Ä176 x 208Ñ * Nokia 7610 Ä176 x 208Ñ * Panasonic X700 * Panasonic X800 * Series 60 2nd Edition, Feature Pack 2 (Version 2.6), based on Symbian OS version 8.0a: Symbian 8.x has support for WCDMA (GSM 3G) and cdma2000 networks. * Nokia 6630 Ä176 x 208Ñ * Nokia 6680 Ä176 x 208Ñ * Nokia 6681 Ä176 x 208Ñ * Nokia 6682 Ä176 x 208Ñ * Series 60 2nd Edition, Feature Pack 3 (Version 2.8.), based on Symbian OS version 8.1a: * Nokia N70 Ä176 x 208Ñ * Nokia N72 Ä176 x 208Ñ * Nokia N90 Ä176 x 208Ñ * S60 3rd Edition (Version 3.0), based on Symbian OS version 9.1: * Nokia 3250 Ä176 x 208Ñ * Nokia 5500 Ä208 x 208Ñ * Nokia E50 Ä240 x 320Ñ * Nokia E60 Ä352 x 416Ñ * Nokia E61 Ä320 x 240Ñ * Nokia E62 Ä320 x 240Ñ * Nokia E65 Ä240 x 320Ñ * Nokia E70 Ä352 x 416Ñ * Nokia N71 Ä240 x 320Ñ * Nokia N80 Ä352 x 416Ñ * Nokia N91 Ä176 x 208Ñ * Nokia N92 Ä240 x 320Ñ * Nokia N93 Ä240 x 320Ñ * Nokia N73 Ä240 x 320Ñ * S60 3rd Edition, based on Symbian OS version 9.2: * Nokia E51 Ä240 x 320Ñ * Nokia E90 Ä240 x 320Ñ * Nokia N78 Ä240 x 320Ñ * Nokia N81 Ä240 x 320Ñ * Nokia N82 Ä240 x 320Ñ * Nokia N95 Ä240 x 320Ñ * Nokia 5700 Ä240 x 320Ñ * Nokia 6120 classic Ä320x240Ñ * Nokia 6290 Ä240 x 320Ñ * S60 3rd Edition, based on Symbian OS version 9.3: * Nokia N96 Ä320x240Ñ