2 newsletters, ranked by editorial quality and how recently they published. Looking for something more specific? Search instead.
A personal newsletter documenting one author's self-experiments with wearable data, including HRV tracking, heat running and the development of their own recovery app, Nunc. It reads as a first-person lab notebook that questions the value of commercial recovery metrics.
A review-style newsletter covering individual smartwatches and fitness trackers, such as the Fitbit Flex, Galaxy Watch 7 and Apple Watch Hermes Series 11. Readers get explanations of features, daily usability, battery and accuracy, and whether premium prices are justified.
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