[Samsung Gear S2] rgburress:
When I tested mine I did not have WiFi or Bluetooth on. So the watch was not connected directly to the phone via Bluetooth or WiFi, just over mobile data. So this should be the same as testing like the phone was left in the car. If the connections aren't enabled there should be no difference between testing with them beside each other or leaving the phone in the car. The only difference would be if you were in a location that the phone and/or the watch did not have a connection to mobile data. If one of them was not on mobile data then it wouldn't be able to see the other.

One other way I can test it would be if the phone is on mobile data and the watch is on a WiFi network, it would be interesting to make sure that would work.

Also, I haven't tested yet, but my understanding was that if your phone dies or loses signal then it will not forward calls or messages to the watch. Has anyone else confirmed that? It should be an easy enough test.

I have not tested call forwarding either as I have not enabled it yet, I was hoping to do some more extensive testing before I do as I don't want any issues and I can't have my phone not ring.

---------- Post added at 03:46 AM ---------- Previous post was at 03:14 AM ----------

Ok, so I just did a bit of testing with some pretty interesting results.

Keep in mind that this is testing strictly with email, exchange email on my phone to be exact.

So I did a few test on a variety of different connections, Bluetooth off in watch settings for all tests, but tried different variations of both on same network and one on WiFi the other mobile and then swap which Device was on WiFi. The results were all pretty much the same regardless of how I had the connection. I was able to get notifications regardless of how my connection was setup. Also to point out is that my watch only says standalone for just a second when I look before it switches over to "connected remotely"

So the interesting stuff that I noticed is that if I did not receive a notification on my phone then I received nothing on the watch, for instance one test I sent myself an email but left the email open on the phone so it did not send me a notification for the email. This would make since and I understand not getting a notification for it, but the thing I thought was weird is that even if I go look in the app on the watch for email the email did not come over in the app.

The other interesting thing I noticed was that I would not receive the notification on my watch until my screen actually shut off on the phone. So if I received an email but was still doing something else on my phone, the notification did not come through until the display goes off on the phone.......Update for this one, there is a setting in notifications on the gear app on the phone that allows it to send notifications when the phone screen is on.

Anyone else having similar results?

It also seems to me that the mail app on the watch is more of a notification tracker instead of a mail sync, it does seem to update deleted items for me, but it will not sync in mail to the watch if i did not receive a notification for that mail on the watch. So definitely some kind of disconnect/bug/user error somewhere.