Garmin HRM-Swim (010-12342-00)

Six months ago I bought a Garmin Swim 2 watch for both pool and ocean swimming. The reviews said the watch's wrist HR monitor was much improved and really accurate. It wasn't and gave unrealistically high maximum HR data and rates of change that were simply not credible. So, I purchased a HRM-Swim monitor and, boy, what a difference. The data seems intuitively correct and the maximum HR is where it should be and there is much less variability (noise) in the data. Its also really easy to use with my Garmin Swim 2 watch. I plan to use the HRM-Swim to help me improve my swim times and I'm confident it will be of assistance. I used the shortest extension strap and, by trial-and-error, found that the best way to fit the strap was to have it really tight and only then would it not slip down when pushing off the wall. And don't forget the HRM-Swim can't communicate with a Garmin watch unless both are out of the water. So you need to be standing up with your chest out of the water to 'switch on' the HRM-Swim and also to download the data to your watch when saving at the end of your swim session.

Not so big, very firm on chest. No regrets !

Both this for pool work. Not as comfortable as the regular heart rate monitor given you have to add an extender out of the box so a bit more fiddly. Only get this one if you intend to use in a chlorine pool otherwise go of the regular heat rate monitor.

Now you can swim and track your heart rate! Love it!