- Old Pixel phones are being rebuilt into low-cost computing clusters
- Researchers stripped smartphones down to motherboards and deployed Linux
- Twenty retired phones can support applications used by 75 students
Millions of discarded smartphones are added to the global electronic waste stream every year despite retaining substantial computing capability.
Researchers from the University of California, San Diego, have now partnered with Google to investigate whether retired Pixel devices can be repurposed for practical computing workloads.
The project aims to reduce waste while easing some demand for new hardware used in smaller-scale data centers.
Researchers turn retired smartphones into computing clusters
Google Research says retired mobile devices contribute to the embodied carbon associated with manufacturing and the broader environmental cost of consumer electronics.
Rather than allowing those devices to remain unused, the research team converted older Pixel smartphones into what it describes as a general-purpose computing platform.
The approach involves removing components unnecessary for computing workloads, including displays, batteries, cameras, speakers, and outer casings.
Only the motherboard remains because it contains the system-on-chip required for processing tasks and application execution.
The researchers then replace Android with a Linux-based operating system commonly used in data centers, allowing deployment of orchestration platforms such as Kubernetes.
This process removes software overhead associated with consumer devices while enabling management tools normally found in enterprise environments.
The researchers claim that phones released only three years ago still delivered stronger single-core benchmark performance than some server configurations.
