Channel

Devices & Apps

How each wearable measures you, and how to set it up for accurate data.

4min

Wrist sensor or chest strap: when your heart rate reading falls behind

The wrist sensor reads blood flow, a chest strap reads the heart's electrical signal. That is why the wrist is fine for rest and steady runs but lags in intervals, lifting and the cold.

October 26, 2026

5min

Devices & Apps

How to wear your fitness tracker for accurate heart rate readings

Wear it snug, on top of the wrist and a finger above the wrist bone, then move it higher and tighter for workouts. Here is why each step matters, and what fit cannot fix.

October 26, 2026