Sustainable design - the key features for sustainable phones are: use of sustainable and recycled materials, the use of less energy and efficient charging, durability, and last but not least they should be easy and inexpensive to repair.
One of the best ways to change this is to voice your concern to cell phone manufacturers for more sustainable products. Request smartphones that are made with fewer hazardous chemicals, manufactured in plants powered by renewable energy, and that contain recycled materials.
