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 willem.com
Collecting health data with Biostrap - Wearing a clinical-grade photoplethysmography (PPG) sensor for a month
| | www.dcrainmaker.com
Apple Watch Series 4: Sports & Fitness In-Depth Review | DC Rainmaker
4.8 parsecs away

Travel
| | Everything you ever wanted to know about using the Apple Watch Series 4 for sport and fitness. From GPS accuracy tests to pushing the limits of the new optical HR sensor...and plenty more.
| | www.dcrainmaker.com
Scosche Rhythm+ 2.0 Heart Rate Sensor In-Depth Review | DC Rainmaker
4.8 parsecs away

Travel
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| | www.dcrainmaker.com
Understanding continual (24/7) optical HR data and resting heart rate | DC Rainmaker
4.2 parsecs away

Travel
| | (Updated April 9th, 2017) More and more devices over the last 1-2 years have begun to include the ability to record your heart rate (HR) data around the clock. No longer are you limited to just workout HR data, but
| | www.gretchruns.com
Wednesday Reviews : New Running Gadgets and Gear
33.6 parsecs away

Travel
| A blog about adventures- from running races across the country to traveling in Europe, with some touches of beauty and fashion along the way.