The Huawei is still a much larger watch, being a circle 42mm across. Also, it looks thick because of the slab sides without contour and the band attaching near the bottom of the watch. The Apple Watch may be of similar thickness, but part of that is because of the heart rate sensor underneath, which doesnt take up the whole back and won't be visually noticeable, especially since the band attaches closer to the middle of the watch. In other words, the Apple is a smarter, more polished design.
Like Rogifan said, ultimately, the Hauwei still looks like a cheap, $250 jewelry counter watch at Macy's, which is what Apple is smartly trying to avoid. That isn't me simply being snobby about price. There are fantastic Seikos that are under $150 that high end watch owners still wear and respect. It's just that most cheaper watches look about as nice as they cost, outside of a few.