By default, it's a device that's receives a million notifications, but I've turned off most of them, so it's back to being a tiny computer that's helpful to look stuff up with. I only get notifications on four things:
1) phone calls - it's still a phone
2) "texts" (SMS/WhatsApp/iMessage/Line) - I disable Slack because it's too noisy aside from one "emergency" channel for work
3) one email account that notifies me of new gmail logins, foreign transactions, bank withdrawals, etc. to keep the junk mail away, i use filters on my other accounts to forward emails to this one special "notifications" account
4) financial ticker (which is set to only notify when something drops more than 5%)
Sure, I might miss some chats and I'm always behind on Twitter, but so what?