They is exactly my philosophy for my watch. And it got rid on the phantom vibration I used to have from my phone in my pocket. Thinking I had notifications when I didn't.

Let me know I have a notification, and then I can decide whether to deal with it now or ignore and leave it for later without having to get my phone out.

Also sleep tracking. But that just requires a basic accelerometer with Sleep as Android anyway, nothing special

The original Pebble was perfect.