News about Amazon's new Halo health tracker [https://www.amazon.com/Amazon-Halo-Fitness-And-Health-Tracker/dp/B07QK955LS] got us complaining about giving up privacy in exchange for convenience. We don't necessarily want these gizmos for ourselves, but for other people in our lives? Maybe! Mentioned: NBA players' magic Covid-detecting rings [https://www.axios.com/nba-smart-ring-coronavirus-3593a238-e593-43aa-9a1b-19e84d3170de.html].