What I wish there was built in on the samsung watches was a smart wake alarm. 

I know there is apps but i feel there should be something similar to fitbit where we set an alarm and 30 minutes to an hour before the watch analyses the sleep pattern to find when you are in light sleep to gently wake you up. 

Cause the idea of using an app when the watch has all the features built in all it has to do is optimise for it sounds so much better and simpler.