Repurposed Pixel Phones Power a Budget-Friendly, High-Efficiency Data Center
UCSD researchers, with Google, are turning retired Pixel phones into standalone compute nodes by stripping hardware and running Linux with orchestration (Kubernetes); in SPEC benchmarks, single cores on older Pixels outperform some server configurations, and 25–50 phones can match a dual-socket server’s output, with a 20-phone cluster already supporting classes for more than 75 students. The project envisions scaling to about 2,000 phones for hundreds of classes, offering a cheaper, lower-carbon alternative to cloud infrastructure—though not suited to hyperscale workloads due to hardware heterogeneity and management complexity.