iPhone.
2 articles.
iPhone vs Apple Watch for the Beep Test
iPhone vs Apple Watch for the beep test: same Léger 1988 audio, same regression, same accuracy. The choice is wrist haptic vs screen glance, with the studies.
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iPhone Beep Test: Run It Right With Your Phone
How to run the validated 20-meter beep test on your iPhone. Audio setup, pacing strategy, and the level reading that maps to your VO2 max number.
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