... than I listed below, feel free to share. (I often listen to podcasts and so far I have my list of options on the market and have also seen some of them on the PH): Mito Health Muse Oura Withings WHOOP Comment from Nika(@busmark_w_nika): @prahemant001  What is meant by "social challenges"? Like you can compete against somebody in the leaderboard? I am a fan of having metrics from these smart devices the only downside ... ... feel well." :D LIke chill, because these gadgets are good but can inappropriately frighten people.) :D Comment from Nika(@busmark_w_nika): @prahemant001  I think that including not only friends but also "competing with strangers" or competing team vs