Heart Rate Monitor

2 articles

Close-up of an Apple Watch Series 12 displaying accurate heart rate data, set against a backdrop of a modern health facility, emphasizing its advanced health monitoring capabilities.

Apple Watch Series 12 brings advanced health and communication features.

A groundbreaking study involving 1,000 participants just dropped a bombshell: the Apple Watch Series 12 is statistically significantly more accurate for heart rate data than its top rivals.

Kai Kealoha·September 11, 2026

A modern fitness tracker on a wrist displaying an accurate heart rate reading, symbolizing the precision of wearable health technology.

Health & Fitness

Wrist Trackers Get Heart Rate Mostly Right — Until You Lift, Sprint, or Ink Your Skin

Wrist-based heart rate trackers are generally accurate for steady-state activities but become unreliable during high-intensity intervals, weightlifting, or due to factors like tattoos and skin tone. For precise training data, especially during demanding workouts, a chest strap monitor is the more reliable choice.

Kai Kealoha·July 1, 2026