Only if you can :) https://buymeacoffee.com/richoosthuizen The question has been asked over and over..."Can you fool an Optical Heart Rate Monitor" The answer is yes...by understanding light, colours and refraction...science has proven a way to fool a heart rate monitor. Go check out our new Variable Heart Rate Tricker - • Variable Real Like Heart Rate | Fool a Hea... Instructions: Start a workout/Heart Rate viewing Place your watch on the screen, make sure your phone/devices brightness if full...and there you go :) now you can tell your friends you had an epic workout session and beat them in online workout games. Enjoy!