Polar M430 – Unusable Optical Heart Rate Monitor? Accuracy Review. Part 1/2
After many years my old Polar S625X started with geriatric problems. For example IrDA drivers bugs on Windows 10, buttons on the watch, chest strap, Polar's announcement that PolarPersonalTrainer will be discontinued... It was time to find a new HR monitor. My wife uses M400 and she is satisfied with it. Polar M430 GPS Running…