My first bone conduction headphones of Shokz OpenRun (a.k.a. Aftershokz Aeropex) died on me and I got a Creative Outlier Free. A quick look at how they both hold out against each other.
Shokz OpenRun https://shokz.com/products/openrun
Shokz OpenRun Pro https://shokz.com/products/openrunpro
Creative Outlier Free https://us.creative.com/p/headphones-headsets/creative-outlier-free