I'm trying to finalize a KEYone purchase and want to buy the right model. Both 1 and 7 seem to support the same frequency bands.
I'm primarily in the U.S. on a T-Mobile MVNO but dual-SIM would be useful because I travel to India where public WiFi is awful.
I've been reading conflicting threads about WiFi calling on the KEYone. Does it work with T-Mobile, and if so, on which version?