My opinion: not too big. I say go for it. So people like big watches. I do not really consider it a gender thing or even a size of the wrist thing. I think of a watch (even a smartwatch) as a piece of jewelry that has added utility. Personally, I like a big watch. I think it looks good on me and I can easily glance at the information. I see women wearing big bracelets and bangles all the time, so if you think it looks good on you (and based on the picture, I think it looks just fine) than I say "get er done".