A Fitbit Air user has found out the hard way that the tracker doesn’t mix well with one particular substance23. Juni 2026
Ai If you’ve already got a smartwatch you like, here’s what I’d get in the Prime Day sales — the Polar H10, the ‚gold standard‘ electrical heart rate monitorHealthradar23. Juni 2026 Every smartwatch and fitness tracker comes with heart rate tracking, but they’re not all accurate, so we test them against…
