I wasn’t saying she shouldn’t use HR for training, just it adds expense and I know some very very good club runners/national level runners who don’t use it

irelanst – Member
I would serious re-consider on the standard USB cable requirement. My last 2 Polar watches both had standard USB connectors and in both cases it was the USB socket in the watch which led to their demise. Water/sweat gets trapped inside the socket and they corrode.

+1

Polar have changed their newer stuff to a proprietary cable to combat it.

My M400 has however been faultless and never suffered from it in 18months or so…tempted fate now though!

I think Polar changed the M400 at some point. It’s always been micro usb (AFAIK) but used to have a little rubber johnny thing to plug the female connector on the watch. This (presumably) dint work and they changed it to what they describe as a ‘waterproof micro usb’ connector.

We shall see.

What Jamie said or Garmin 935.
The optical HR is better than on the TomTom equivalent IME

I’m sure the OP said ‘budget’ but it’s all relative I suppose… 😉