The Pulse Ox (pulse oximeter) measures and monitors the oxygen saturation levels in your blood. This will let you know when to go all-out to achieve your personal best, or when to tackle that high-intensity interval. It will also let you know when to take a rest day, even if you feel like you don’t need it.
By monitoring your energy levels and oxygen levels, you’ll be able to maintain an effective oxygen level, which can improve speed, endurance and overall performance.