I switched to the Garmin Venu 3 from an Apple Watch Series 6. The heart rate reading while resting seems accurate, matching my Apple Watch as well as blood pressure monitor whenever I use it. The problem occurs whenever I go for an outdoor run, indoor run or inclined treadmill walk. The heart rate reading on my Venu 3 will go up with my actual heart rate until it rises to 141 or 149, specifically those two numbers, and remain at that reading. Sometimes it will stop at 141 and other times it stops at 149. That reading of either 141 or 149 will remain for ten to twenty minutes, or sometimes longer, before finally rising and giving a more accurate reading. I have run with both of my watches on, Venu 3 and Apple Watch, and my heart rate definitely gets above 141 or 149, so that can’t be an accurate reading. I wear a silicon strap on my watch as suggested to keep it snug against my skin. I also do plenty of warming up before exercising. I have turned the watch over so that the sensor is reading from my inner wrist, tried my opposite wrist, wore a sleeve over the band to prevent outside light from disrupting the sensor and even shaved any hair that may be interfering. This is a ridiculous issue for a $450 watch to have. I’m hoping Garmin can offer some sort of fix for this issue but have little hope as there are many other similar complaints. Unfortunately, I did not see the numerous complaints until after I purchased the Venu 3.
