Does anyone know for sure if the Marq series has a different, newer optical heart rate sensor than the Fenix 5 Plus? And, if so, whether it’s more accurate?
They look fantastic but if I’m going to blow over $1500 on a watch I’d like it not to measure a heart rate of 140bpm while I’m standing stationary brushing my teeth and 80bpm when I’m midway through a HIIT class...
thanks