You will be shocked to learn (as was I) that the iPhone Mini is the same size as the iPhone 6- which is what I considered to be too large for my tiny mitts.
Yep. Width-wise iPhone 13 mini is just 3 mm narrower than iPhone 6 [0]. On the positive side, it has sharp edges allowing a better grip than iPhone 6's rounded edges.
[0] https://www.apple.com/iphone/compare/?modelList=iphoneSE,iph...