I have a version 1 that was released six months ago.
My clock has worked fine, but the battery lasts no more than a day, and, unfortunately, it has started to record the "spökrörelse, it is believed that, as I started to move on me despite the fact that I'm sitting down.
In the end, it was a good place to start is to see if I would like to have a smartklocka without having to spend so much money.
For me it will probably be the next one to buy the Apple Watch when it is more efficient.
The new one seems to be getting good updates, for example swipes in a circular motion again, as well as a better sensor.
If it has any improvements, then my above problems, so it's definitely a good watch.