I was expecting the Apple Watch Series 12 and Garmin Fenix 9 Pro to display very similar stats during a workout —…
The brand-new Apple Watch Series 12 and the Apple Watch Ultra 4 are reportedly the most accurate heart rate-tracking smartwatches on the market and the best Apple Watches yet, largely thanks to the wearables' new Health Sensing System. A redesigned LED sensor array, the Health Sensing System is said to be more accurate than ever before, measuring active and resting heart rates up to 60 times more often than previous generations.
Considering all my tests with the Apple Watch Ultra 3 had it cleaving remarkably close to an electrical heart rate monitor, I was ready to believe Apple's accuracy claims were true.
Barely an hour after I got my Apple Watch Series 12 review unit from Apple, I hit the gym and gave the smartwatch its first test drive. While I didn't have my heart rate monitor available, I did have the GarminFenix 9 Pro, so I strapped...
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