For runs I prefer the aluminum because it's lighter. For everything else I prefer the SS because the sapphire screen is always flawless. I think the best solution is to buy a 38mm aluminum for working out and a 42mm SS for the office. If I had to pick only one, I'd go with the 42mm SS.
Which one are you using & does the sapphire screen make a big difference?
Thanks!
The sapphire display is a huge reason why the stainless model is preferred for many. It's virtually impervious to scratches. My stainless Apple Watch has zero scratches on it, even after being used daily. The only drawback wihh the sapphires do play, is the reflectivity from the sun, but it's not really that noticeable.