Several months ago, my Garmin HRM failed (again) and rather than go for a warranty replacement, I decided to try the 4iiii HRM, and just go for simplicity - all I ever really needed was HR. Don't really care about running metrics.
After a period of time, I realized that the new 4iiii HRM I had bought was giving me really flaky behaviour (it would sometimes shoot up to near max HR even though my effort didn't warrant it). The really odd thing is that it would only happen on the run - indoor cycling sessions never displayed the behaviour. Got a warranty replacement and had the same issue. Ultimately got a refund and bought a Wahoo HRM.
I now have a warranty replacement for the Wahoo HRM, which is also displaying flaky behaviour (but different from 4iiii). Behaviour I see now is that on the run, everything looks good for the first few minutes of a walking warmup, but as soon as I start to run, the HR shoots straight up like a square wave. Sometime it holds at near maximum HR, and sometimes it bounces up and down a bit (but always "square"). After a few minutes it settles down and the HR for the rest of the run is as expected.
I've got one more thing I want to try with the Wahoo HRM, but I suspect I'm going to go for the refund as well.
Of note - with the Wahoo in particular, I've worn the HRM for a good 20 minutes prior to starting the run, including some muscle activation. There doesn't seem to be any issue with skin connectivity since I'm picking up HR from the start of the walking warmup. I deliberately did not wet my skin because my past experience with Garmin is that 20 minutes is more than long enough to get a good connection.
Has anyone ever seen issues like this before? I'm going to try Polar next unless someone can tell me what I'm doing wrong, if anything.
I really don't want to go back to Garmin HRMs. They only seem to work until you change the battery, then they're broken.
After a period of time, I realized that the new 4iiii HRM I had bought was giving me really flaky behaviour (it would sometimes shoot up to near max HR even though my effort didn't warrant it). The really odd thing is that it would only happen on the run - indoor cycling sessions never displayed the behaviour. Got a warranty replacement and had the same issue. Ultimately got a refund and bought a Wahoo HRM.
I now have a warranty replacement for the Wahoo HRM, which is also displaying flaky behaviour (but different from 4iiii). Behaviour I see now is that on the run, everything looks good for the first few minutes of a walking warmup, but as soon as I start to run, the HR shoots straight up like a square wave. Sometime it holds at near maximum HR, and sometimes it bounces up and down a bit (but always "square"). After a few minutes it settles down and the HR for the rest of the run is as expected.
I've got one more thing I want to try with the Wahoo HRM, but I suspect I'm going to go for the refund as well.
Of note - with the Wahoo in particular, I've worn the HRM for a good 20 minutes prior to starting the run, including some muscle activation. There doesn't seem to be any issue with skin connectivity since I'm picking up HR from the start of the walking warmup. I deliberately did not wet my skin because my past experience with Garmin is that 20 minutes is more than long enough to get a good connection.
Has anyone ever seen issues like this before? I'm going to try Polar next unless someone can tell me what I'm doing wrong, if anything.
I really don't want to go back to Garmin HRMs. They only seem to work until you change the battery, then they're broken.