“Doing a big project outside of the university was a great opportunity. The coaches helped a lot, were always insightful and motivated us to push forward. We worked very hard and believe we have already inspired others to think about the subject of handing in their old phones.”



TU Delft - The Netherlands

An all Dutch team studying different Masters in Industrial Design Engineering at Technische Universiteit Delft. Their team name, 'repokki', comes from 're' as a reference to circular processes, and 'pokkie', which is Dutch slang for 'mobile phone'. The challenge is the perfect opportunity to adapt their current knowledge and perspectives, learn new skills and methods and work together as a group of friends.


Team members - Eline van den Wildenberg (The Netherlands), Tippi de Bruin (The Netherlands), Romée Postma (The Netherlands), Flore Rens (The Netherlands) and Mila van Rijs (The Netherlands)

“I have very rarely seen a team that is so capable of understanding the hidden problems of society, and that has tried to make our world a little bit better with their smart solution.”

Assessment coach, Robin Auer - Design Researcher, Experience Designer, and Strategist at IBM, Boeblingen, Germany

Service concept

REPOKKI - a circular service solution that guides people and facilitates handing in used phones through the use of a modular hub with an interface. Repokki works together with different stakeholders, such as the municipality of Rotterdam, recycling and refurbishing companies, to make this possible.


Other teams


Initiated and powered by Philips Experience Design
and co-organized with SERVICE DESIGN COLLEGE, in
collaboration with IBM and the Ellen MacArthur Foundation.

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Until when can teams register?
Teams can register until January 14, 2022. They will have until Friday January 21, 2022 (11:59:59 PM CET) to submit their research proposal(s). We expect that the preparation for a proposal will take at least a few weeks.
Can I enter the challenge alone?
You cannot participate as an individual student. You need to be part of a team of 4 to 7 members.
Is there any limitation on the number of members in a team?
Yes. The team needs to have at the least 4 team members and no more than 7 team members. All team members have to be students.
I am not a Service Design student. Can I enter the challenge?
Yes, you can. You need to be part of a multidisciplinary team, preferably with at least one design student.
Is there an age limit for entering the challenge?
No, there are no age restrictions, as long as you meet the criteria about student status.
Can a team submit more than one research proposal?
Yes a team can submit more than one research proposal, but you should submit each proposal separately.
What happens to our ideas, materials, etc.?
As a participant in the challenge you will retain intellectual property ownership of all your challenge submission ideas. There is no transfer of intellectual property rights to any third party as a condition of participating in the challenge. Please read our Official rules before submitting.