It looks like HRV level of accuracy is nearly commercially possible for optical wearables with an…
Tag: jabra
TomTom Runner Review (Runner 3 aka Spark 3)
TomTom's Runner/Spark 3 is BY FAR the best value, best featured and most accurate device. There…
Optical HR Gallery – Rogues, Vagabonds and Sexy Sirens
FitbitI’ve been checking through some old posts and ‘accidentally’ put together a gallery of optical sports…
TomTom Runner 2/Spark – Firmware, software, configuration/pairing and sharing
This is part of the detailed review for the TomTom Runner 2 (aka SPARK) and covers the…
TomTom Runner 2 / Spark – Detailed Review
TomTom have finally updated their successful RUNNER series of watches with the cunningly named RUNNER 2…
My Favourite HRMs
I still haven’t found the perfect heart rate monitor, for me, for everything I do. For…
Jabra’s new in-ear Bluetooth headphones track more than 40 exercises and coach you along the way
tfk the5krunnertfk is the founder and author of the5krunner, an independent endurance sports technology publication. With…
Optical HR Accuracy – Making the perfect sensor for sports usage
Why isn’t there a Polar Optical HR Sensor? After all Polar have been the gold standard…
Jabra Sport Pulse Review – Wireless – heartrate HR monitor earphones headphones earbuds
Log in to read the rest For reviews, the summary verdict and key findings appear near…
Jabra Sport ROX Review Wireless Earphones / Earbuds / Headphones
I teamed up with JABRA at The Wearable Technology Show at Excel and I’ve recently been…
