Originally Posted by dhworph
kinda off-topic but related, but SMS don't use data at all... in fact I've had SMS work many times when voice calls wouldn't... for example, when out on a hike.
So this is strictly a question about MMS.
I'm not sure I buy that (not that I know for sure).. Then how would WiFi save battery life if it was keeping the 4G connection open? Does the data radio go into a MMS only mode?
All you have to do is have your wifi connected and send a MMS, you can see the arrows over your signal bars moving to show the transmission of data.