The Siemens C25 is a mobile phone introduced by Siemens in 1999. It weighs 135 g and its dimensions are 117 x 47 x 27 mm (length (without the antenna) x width x depth). Its display is a 3 x 12 characters monochrome LCD.
The phone's battery powers the phone for 300 minutes talk time, or up to 160 hours if left in stand-by mode. Its a dualband mobile phone supporting both GSM 900 and GSM 1800 network frequencies. It supports up to 21 monophonic ringtones. It also supports SMS sending and receiving.