6. Microsoft Lumia 500
Total Score: 5
The Microsoft Lumia 500 might not be most powerful handset around, but it has several notable eco-friendly features, giving this phone a green status. Lumia 500 has 0% of plastics, nickel and brominated flame retardants. A very low radiation and battery saving options are the features that make The Microsoft Lumia 500 an important part of this list.