Posted by Michael Stillwell, Developer Relations Engineer and Dimitris Kosmidis, Product Manager, Wear OS 64-bit architectures provide performance improvements and a foundation for future innovation, delivering faster and richer experiences for your users. We’ve supported 64-bit CPUs since Android 5. This aligns Wear OS with recent updates for Google TV and other form factors , building on the 64-bit requirement first introduced for mobile in 2019.