I’ve always been one for the smaller version ever since my 38mm Series 0 than the 40mm with the Series 5/7. I decided to try the 45mm Series 9 and the extra screen size is fantastic! Admittedly still getting used to the bigger size on my petite wrist but do love that I can use the Ultra’s Alpine Loop!
I’m still hanging onto that Series 0 too!! Dunno why. It just seems so prototype-ish