The average environmental life expectancy of common electronic information products: 10 years for digital cameras, 10 years for stand-alone telephones, 20 years for cell phones, 10 years for LCD televisions, 8 years for CRT monitors, 10 years for CD-ROMs, 10 years for home stereos, and 8 years for automotive electronic audio equipment.
The actual environmental life span of a cell phone is 10-20 years