Apple
I just tested the Apple Watch Ultra 3's heart rate tracking against a Polar H10 chest strap – here are the results
· By Endurance Wire
Get full access to premium articles, exclusive features and a growing list of member rewards. The Apple Watch Ultra 3 packs 42 hours of battery life, the biggest and brightest screen on an Apple Watch yet, satellite connectivity, 5G, and Apple Watch's powerful new software courtesy of watchOS 26. I finally have my hands on an Apple Watch Ultra 3 test unit, and I was very excited to put it to the test. For my first test, I wanted to check the heart rate accuracy, the lynchpin of every wellness metric on even the best smartwatches .