I have a Venu 2S and was interested in getting the most accurate HR information. Went through all machinations to pair etc. Could not distinguish where HR info was coming from. Did not get HRV info I was looking for. After using time trying to figure it out on internet searches, finally quit and sent the device back. So sad!
I had problems pairing this device to my Garmin 945 smart watch, right out of the box. Finally got it paired and it worked for one day. Second day, I tried to use the HRM for my bike ride and it would not pair with the 945. Tried all the HRM 200 and Garmin 945 manual steps, garmin support site, internet searches and nothing helped. Very disappointed in Garmin for not ensuring there are bulletproof connections between its devices (like apple)! Garmin used to be a solid brand but their quality is slipping. I will return this item and shop other brands.
This is my first heart rate monitor and I've been really happy with the HRM 200. I have my heart rate displaying on my Garmin Edge 540. I cycle with both my Garmin watch and computer which allows me to compare both. The HRM 200 seems to be much more accurate than the watch. It's been reliable so I'm happy. I also like that the HRM unit is removable from the band for washing and replacement.
I spent a couple of hours trying to get this HRM to work with the Garmin Connect app on my phone with no success. Finally, after a bunch of searching, I discovered that it requires a compatible watch or bike computer in order to interface with the app and/or display heart rate. It's not in the Garmin documentation that came with the HRM and was very hard to track this information down. I returned it.