EVERYTHING YOU NEED TO KNOW ABOUT THE WEAR OS HYBRID INTERFACE

Summary from the TLDR Design newsletter

Google introduced a new hybrid OS interface for Wear OS at MWC that enhances battery life. Notably, the OnePlus Watch 2 now boasts up to 100 hours of use. Compatibility with other smartwatches depends on each OEM’s architecture and power strategy. However, there's anticipation that other smartwatches will adopt at least some aspects of this battery-optimizing feature.