The C901 Green Heart model features an electronic in-phone manual to replace the standard paper version, saving more than 90 per cent in paper, while the phone casing is made from a minimum of 50 per cent recycled plastics.
It also has an optimised display light sensor that uses less energy, and is covered with a waterborne paint that lowers exposure to volatile organic compounds.
The phone will also include the Walk Mate application, which will let users compare the steps they take to the equivalent journey by car.
The Naite model will feature many of the same innovations as the Green Heart, and will also come to market with the EP300 Green Heart low-power charger.
It will feature a carbon footprint calculator to show how much CO2 a user is saving by walking instead of travelling by car.
Dick Komiyama, president of Sony Ericsson, says, ‘Building on the established heritage of our parent companies, Sony Ericsson has worked continuously to become an industry leader in the area of removing harmful substances from the core of its phones and in creating industry-leading energy-efficiency chargers.’