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in-water heart rate display

I just got the 245 (used) mainly for pool swims.

Since I got it mainly for the HRM feature, am a bit confused by it! When I take a easy walk, the heart-rate shows approx 120 which is most likely incorrect. And when I go for a pool swim, swim a few laps and am completely out of breath & tired, the heart-rate never reads above 90

Could it be the water that is showing such inaccuracy?

Thanks!

0 1399854 over 4 years ago

Is this the screen that is supposed to provide heart-rate measurement?

0 Garmin-Brooks over 4 years ago in reply to 1399854

Are you getting that heart rate reading of 90 when you start an activity? That probably will make a difference. The screen you have taken a picture of shows the heart rate widget which is where you would check you daily tracking heart rate. For swimming, you would want to make sure you press the top right button scroll to pool swim, then start the pool swim activity. Your heart rate should be more accurate then. Frequently Asked Questions About Using Wrist Heart Rate Sensor While Swimming

0 1399854 over 4 years ago in reply to Garmin-Brooks

I get a maximum of 90 in the pool, probably start with 68. And *frequently* 120 when walking. Will try to start a swim activity and check, thanks!

0 1399854 over 4 years ago in reply to Garmin-Brooks

Also since just got the watch, have never started an activity. I just scroll to look at the heart-rate number...Is this the correct display mode?