I've been using and paying attention to phones and their signal strengths for many years. Androids have always had better reception than iphones but it's never really been a big enough difference to deter me from owning an iphone from time to time. But my average dBm measurement with my Samsung has been between -70 and -83 or so in the room I am sitting in right now. With the iphone mini that I have been using for the past week, it's been anywhere from -85dBm to about -95dBm. Still no terrible, but the difference is meaningful. God forbid I should drive into an area where the Samsung might be at -110 or so, still good enough to hold onto a call but if I was using the iphone in that area, I might be at around -120 or worse, dropping calls like mad.
I really do agree with you that it is disheartening but I've come to the conclusion that the cell companies spend so much time and effort on giving us the latest technology at the sake of never really perfecting what they've already given us. Same with computers and cell phones themselves. Everyone thinks that the latest tech is what's important, so we are constantly in an uphill battle of catching up and trying bug fixes for every new thing that comes along. I've been involved with computers since the 80s and always thought back then that it would be nice to finally get beyond this constant struggle with upgrades and their designers and engineers taking months to fix bugs. Now 40 years later, none of that has changed really.