Microsoft’s unreleased Surface Duo foldable with Windows is on sale, but good luck trying to buy it
August 4, 2025
2 min read
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Android Authority

An unreleased prototype of Microsofts dual-screen foldable phone, Surface Duo, was recently found listed online for sale. While Surface Duo ran on Android, the leaked prototype runs an unreleased version of the Windows Phone interface. Microsoft envisoned this as an intermediate between a regular