Are heart rate monitors just an ongoing replacement expense like tires etc?

[jack14i2]

@JonGreengrass

I’ve found the batteries last much longer when I unclip one of the press studs after use, I think the sweat soaked strap must still be conductive enough to stop the monitor going into sleep mode?

That makes sense. I started unclipping a few months ago and battery life goes to the roof You can really feel the difference.