I got almost a year out of the HRM Dual, and it worked well for most of that time. I would wash the strap every 6-10 rides after removing the hrm node, hang dry, etc. Started to see dropouts a month or two ago, so I replaced the battery figuring it may be that. It wasn't. Researching it, there are seemingly a few things that go wrong with these, but my strap didn't have any cracks in the contact patches, the battery cavity doesn't have any corrosion, from what I can tell, all the internal cabling was in tact between contacts and connection point, and even after a battery change and vigilant washing to avoid any salt buildup, it would only last the first 10-15 minutes of a ride, then drop out completely. I'd adjust the fit and it would show up on the head unit again, but at a criminally low HR (like 65HR while climbing over FTP). I even tried shaving the chest hair, to no avail. I noticed that one of the contacts on the nodule itself seemed to have some rust underneath the plastic covering the unit on the backside (around one of the circular metal bases attached to the contacts that snap into the strap). This was something I couldn't find examples of online, so I was a little leary of buying and trying another strap, thinking it might be something to do with this corrosion/rust which would mean my HRM unit was toast and a new strap wouldn't remedy the problem.
I opted to buy a new HRM entirely and just anticipate needing to do so once a year or hopefully get a couple years out of these things moving forward, as they're not cheap.
I had a Wahoo HRM that I used for a few years but was not accurate or consistent. I would constantly have readings that were way off the chart. The Garmin just flat out works. It's dependable and comfortable to wear. I get consistent, accurate readings and never have to question what's going on. Highly recommend.
My last heart rate monitor (same unit) lasted a year possibly two, but not 3.5. And like all HRM's I've ever used this model does not allow you to replace the battery when it's depleted because it never works, which means you need to toss the whole unit every year or two and start again.
After about a year of use, it began dropping out during a ride. Garmin replaced the strap and suggested a few changes:
(1) Even though instructions said the strap could go in the washing machine, the spin cycle might fold it and break the wires. Now I just remove the module and soak the strap in the sink while I shower after a session, adding a few drops of dish detergent once a week.
(2) Buh Bump electrolyte cream on the electrode patches before each session.
(3) Leaving the module off the strap until the next session may increase battery life.
Electrode patches may be bubbling slightly after a year on the replacement strap. So far it has worked perfectly, but I got a new strap just in case. I do 5-6 sessions a week, fairly heavy use.
I use this heart monitor when on group rides. Typically 50 mile rides. The strap is easy to put on and very comfortable. Pairing it to Edge 810 was easy. I like the easy slip on clasp. It is comfortable to the point that during the rides I forget that I have it on.
Bought this to use with my Lezyne computer. Comfortable, works great and Bluetooth connection to my computer fantastic. Only issue is that the strap is incredibly long. While it can be adjusted, it is a bit too loose on my female, 58, 115 pd frame even when shortened as much as possible.
I got this to connect both my Garmin Edge and my phone in order to have back up in case one goes awry on a ride, which does happen. It connects to the Garmin with ANT and the phone with bluetooth. It works except, oddly, my Garmin Edge will lose connection and I can't get it back while out on a ride. The phone stays connected. I think it loses connection when I power up the Garmin Connect app on my phone, so go figure. Otherwise works as advertised and is great to have HR on both devices when one craps out our produces wacky GPS.
Initially I was going to buy the one that is made for swimming. For running/cycling I prefer this one, since it is slimmer.
The strap is comfortable and after couple of minutes you wont notice it. The connection to my bike computer is super fast, and very reliable.
I was frustrated trying to run different devices so that I could race on zwift with heart rate. This HR monitor is great. With the Bluetooth technology, I no longer have to worry about an ANT+ stick adding to the complexity, I can attach the monitor and my trainer to my iPad! Perfect setup.
The monitor pairs relatively easily and reliably with my Garmin 830. The respiration rate is an added bonus. It does not pair reliably with my Android phone for use with Strava.
Well most head units are Garmin and use ANT, and then Ive got a TACX Neo2 (which Garmin recently bought TACX) which uses Bluetooth with my Apple TV. So if you get this heart rate strap your pretty set as it work seamlessly with both the Garmin headunits ANT and Bluetooth as needed. Plus its comfortable and I like the strap.
Its a comfortable strap that you wont notice once its on. 95% of the time it does exactly what youd expect. Occasionally you get drop outs where the HR is reporting numbers that are clearly not correct but its probably a few seconds before it corrects itself.