01-15-15, 04:57 PM | |
Join Date: Apr 2005
Location: Australia
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Found the CNET review page for you.
In summary: Five devices were chosen for testing: the Garmin VivoFit, the Basis Carbon Steel, the Withings Pulse O2, the Samsung Gear Fit, and the Samsung Galaxy S5 (a phone with a fingertip sensor, for good measure). I performed two tests for each: three measurements at rest and three immediately after running on a treadmill. The latter required me to stop running completely, as all devices (except for the chest strap), need the user to be completely still to get a reading. The results were clear: most of the trackers employing optical sensors were only accurate (or close to accurate) at my normal resting heart rate of about 70-80 BPM. The Garmin VivoFit, a device that employs a chest strap, was expectedly dead-on at accelerated rates after exercise, however. Device____________ Error (%) at 80-90 BPM Error (%) at 160-170 BPM Garmin VivoFit______ 10.7___________________0 Withings Pulse O2____5.3___________________57.1 Basis Carbon Steel___10.2__________________57.9 Samsung Gear Fit____4.2___________________Unable to read Samsung Galaxy S5__3.1___________________0.2 Devices with optical sensors that read the wrist (instead of the fingertip) had the most trouble tracking heart rate. These include the Basis Carbon Steel and the Gear Fit. Both either errored out in multiple tests or were significantly inaccurate compared to the EKG post-exertion, supporting the idea that optical monitors are challenged by quick pulsations. In contrast, the Samsung Galaxy S5, a phone with a built-in monitor that measures heart rate from your fingertip using an optical sensor, tested almost exactly in sync with the EKG. I don't have any experience with wrist HRMs, but use an optical App version on my phone that's just fine, but obviously that's not a continual thing whilst exercising, just a "what is it NOW" reading.
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2024: 👏 STRIVE rather than settle.👏 💪STRONG rather than soft.💪 • No exercise can compensate for a poor diet. 😖 • Walking is phenomenally good for me. 😊 • Resistance training is critical. 💯 ¹ Walk first ² Weights next ³ Cardio for fun ⁴ Add stretch & balance. |
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