1. Garmin: HSM-Tri. Available at:
https://buy.garmin.com/en-AU/AU/p/136403
(2017)
2. Polar: H7 Heart Rate Sensor. Available at:
https://www.polar.com/auen/products/accessories/H7heartratesensor
(2017)
3. FitBit: FitBit PurePulse. Available at:
http://www.fitbit.com/au/purepulse
(2017)
4. TomTom: TomTom Spark Cardio. Available at:
https://www.tomtom.com/en_au/sports/fitness-watches/gps-watch-cardio-spark/blacklarge/
(2017)
5. Shu, Y., Li, C., Wang, Z., Mi, W., Li, Y., Ren, T.L.: A pressure sensing system for heart rate monitoring with polymer-based pressure sensors and an anti-interference post processing circuit. Sensors (Basel, Switzerland) 15(2), 3224–3235 (2015)