I picked up a promising tracker that was supposed to monitor heart rate and sleep patterns, but after a few weeks I noticed inconsistent data and frequent dropouts. When I tried to find help, customer support was slow or nonresponsive. I ended up sharing my experience at https://fitbit.pissedconsumer.com/review.html to warn and inform others. It wasn’t about hating the brand – more frustration from not being able to trust a device I counted on daily. It was disappointing to realize that the support system behind it wasn’t ready to catch users when things went wrong.