I have two watches paired with my iPhone X, Series 3 and Series 5, both LTE. The 5 is the one currently connected to the iPhone. (For purposes of staying in sync, offloading some work to the phone, and apparently sharing the phone's number, only the currently connected watch does those things; but another paired with the same phone, if also on the phone plan, isn't helpless!)
Normally, the phone and watch can't call each other, and the watch number can't be called, it's for phone system use; both watch and phone ring together (assuming both are on). But (and this is the interesting part) with a 2nd paired watch not the one actively connected/associated with the phone, its number can be called, and it can call the phone (and presumably anything else). In effect, a 2nd watch not active with the phone behaves like a second line.
I discovered this when sitting around near both watches and the phone; and the inactive watch received calls occasionally.
These are on Verizon, if that makes a difference.
I don't know if it's a passing quirk, or something unlikely to change, but I thought it was interesting.
Normally, the phone and watch can't call each other, and the watch number can't be called, it's for phone system use; both watch and phone ring together (assuming both are on). But (and this is the interesting part) with a 2nd paired watch not the one actively connected/associated with the phone, its number can be called, and it can call the phone (and presumably anything else). In effect, a 2nd watch not active with the phone behaves like a second line.
I discovered this when sitting around near both watches and the phone; and the inactive watch received calls occasionally.
These are on Verizon, if that makes a difference.
I don't know if it's a passing quirk, or something unlikely to change, but I thought it was interesting.
