My blaze seems to constantly lose my heart rate, I’ve tried all the tips to fix it (different arm, different positions on both arms, reset, cleaning it, etc) and it still happens.
I was also curious of the heart rate accuracy, so put my partners charge 2 on my other arm whilst wearing my blaze. They showed around 20bpm difference between them, the charge always reading higher than the blaze. I tried swaping arms and positions on my arm, with the same result.
Moderator edit: subject updated for clarity
