Perfect size and shape. It's not bulky and is the same size as my s22+ which is great so I can still put in my pants pocket and coat pocket with ease. Even with my phone case it's still a perfect size.
I am delighted with my Samsung S25+. The greater size compared to my S21 is not the inconvenience I feared and it has twice the storage capacity at 256 GB. The transfer from the older phone to this new one was painless and I bought a UBPro case that is perfect!
New Samsung is great - battery seemingly lasts forever. But still not hearing a decision on the trade in which is creating a real concern re: the final cost.