I Tested the Apple Watch's New Heart Rate Sensor to See If It's Really Better Than Garmin's - Lifehacker

Apple caught my attention with their claim that the Apple Watch Series 12 and Ultra 4 have the "most accurate heart rate in a wearable." It's hard to make a really accurate heart rate sensor, and in my experience, Apple hasn't had a great track record in that area. So I tested the Series 12 pretty intensively over the past week or so, and now I have results.

Apple Watch Series 12 (GPS, 42mm)

$399.00

at Amazon

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