you need to shave your wrists. Or wear it tighter? Or clean the contacty things?
"Forerunner 225 has built-in technology which includes LEDs on the back of the watch. These LEDs shine light into the skin, which then enables the electro-optical cell to detect the pulsing volume of blood flow, and the user’s heart rate. The flexible silicone ring shapes to the runner’s wrist and helps prevent ambient light from interfering with the LEDs and affecting the signal."
Not sure any of the above are relevant. Maybe wear tighter. Which could restrict blood flow...
I've got a 235 and the HR is garbage. It records surprisingly good tracks though, let down by its automatic interval. Or perhaps I just haven't found how to set it.
Gruver, you can turn 1-second recording on. Somewhere. I found it when I was poking around one day (I also have the 235).
Wear it so the LEDs are on the inside of the wrist for better pickup. Have you done a check by manually counting while wearing the garmin?
Thanks Louise, I found it. Can you suggest how I can simulate waypoint recording, perhaps there's a way to put a special mark into the track file? Possibly pretending they are "laps", but how do they show up when you import the GPX into OCAD?
Take 5 seconds to walk in a small circle? I haven't tried doing waypoints since my 301.
I don't think I'll persist with 1sec recording, a comparison with a handheld and display on a larger scale shows twice the discrepancies between out and back on the same track. (Mapping at a walk, riverbank, clear sky view.) And 10X the file size as "smart" recording. So it wasn't just the interval.
(On my 64S I generally record at 3sec when on foot and 1sec on bike. And waypoint all significant features. But I have had weather-related troubles downloading which have caused me to consider running my watch as a backup.)