Fairphone

Certified B Corporations use the power of business to solve social and environmental problems. B Corps meet comprehensive and transparent social and environmental performance standards; meet higher legal accountability standards; and build business constituency for good business.
Source: B Corporation (2019)

This company received a grade of B in the Greenpeace Guide to Greener Electronics (Oct 2017), which assesses companies from the electronics industry across three impact areas: energy use, resource consumption, and chemical elimination. Of the 17 companies ranked, this company came first.
Source: Greenpeace (2017)

Engineers from ifixit.com disassembled and analysed a range of smartphones, tablets and laptops, awarding each a repairability score between one and ten. Ten is the easiest to repair. A device with a perfect score will be relatively inexpensive to repair because it is easy to disassemble and has a service manual available. Points are docked based on the difficulty of opening the device, the types of fasteners found inside, and the complexity involved in replacing major components. Points are awarded for upgradability, use of non-proprietary tools for servicing, and component modularity. Fairphone's 2019 model scored 10 points.
Source: iFixit (2020)