Bluetooth Smart Unlock makes taking out my phone easier, since I don't have to put in a code or fiddle with the fingerprint reader. I've really gotten used to it.

But the killer feature to me is notifications. I can keep my phone completely silent with no vibration and never miss an important call or text or calendar reminder. I never have to pat my pocket to see if my phone is vibrating. I can decline spam calls and decide whether to respond to messages without taking my phone out. I can even leave my phone in silent mode on the counter across the room and not miss calls or texts.

I also love the Google Maps integration (third party app). Being able to see my next turn on my wrist is very useful and the navigation screen is more informative and easier to read than the native Google Maps Android Wear integration. When I get in my car that doesn't have Android Auto, I can still say "OK Google, navigate to X" and without taking my phone out of my pocket I get voice directions through car Bluetooth audio and visual directions on my wrist.

It's also just a good watch. There are lots of faces to choose from, some with extra information like weather or stock prices or step count or whatever. It's far thinner than any other smartwatch and you don't have to flick your wrist just to turn on the screen and see the time.