I've purchased a Pebble and, more recently, a Moto 360. I love the idea of smart watches but I feel like they need to be as passive as possible for the best use

I've purchased a Pebble and, more recently, a Moto 360. I love the idea of smart watches but I feel like they need to be as passive as possible for the best user experience. So far the Apple Watch looks like it needs a lot of interaction to do different things. I'm excited to see a real demo of the interface to see if that's really the case. However I won't be buying anymore smart watches from anyone until at least another generation or two; the Moto 360 and even the Pebble are just so thick and the constant amount of charging the 360 needs makes it difficult to go through a full day just using it to keep track of the damn time.