The 15 Pro is one of the most comfortable phones for one-handed use that I've encountered

The 14 Pro from last year was incredibly uncomfortable. It was not only heavy, but the sharper sides dug into my hand and forced me to always use that phone with a case. Apple seems have fixed both of these issues with the 15 pro. I have fairly average sized hands, and this phone feels like it was tailor-made for me. I think the combination of reduced weight, rounded edges, and the smaller bezel size (which results in a very slightly narrower phone) makes the 15 Pro lot more ergonomic to hold in hand than previous generations of 6.1 inch apple phones.