Many T-Mobile users rely on Wi-Fi calling to use their mobile number without needing access to the mobile network, but they aren't Nexus 5 owners. That handset, due to its lack of carrier modifications, didn't support T-Mobile's nifty feature. With the Nexus 6, things will be different. The carrier has already announced that it is bringing Wi-Fi calling to the handset.

T-Mobile says it will deliver Wi-Fi calling via an over-the-air update at some point in early 2015, thanks, it says, to enhancements in Android 5.0. This leaves room to wonder if the Nexus 5 will also see support through a future update, but since the press release makes no explicit mention, for now that's all we can do until the carrier is ready to talk.

In other news, T-Mobile will start selling the phone directly November 12 for $27.08 a month for two years, which adds up to $649.92 altogether.