This is the first smart watch I've seen that actually looks good. It's clearly aiming to look as much as possible like a traditional watch when not actively being used.

It does look huge on the woman's wrist on the second slide/page/section thing. Big watches tend to be a men's fashion thing, so I wonder if this will present problems.

The heart rate feature seems really out of place and useless. What use is a recent history of your heart rate? Presumably there are plans to integrate more features into the health part of things, because at the moment it looks a lot like a "because we can" feature.