[moogleii]

Didn't iOS 10 or whichever add cellular assist to WiFi? I know some people raged about it, but I find it useful for the scenario you just mentioned.

[mikeash]

It did, but I'm not sure how well it really works. In my own experience, I still see lots of networking failures if I'm far enough from my house for the network to be dodgy but not so far that it disconnects, or if I connect to crappy public WiFi.