The Nexus 5 has already been available from the Play Store for about a week now. But it just went on sale at Sprint yesterday and is hitting T-Mobile on Thursday. So the big question is, will the Nexus 5 on T-Mobile support their WiFi calling? And the answer is no. Mostly because the Nexus 5 you purchase from T-Mobile is the exact same one you get from Google Play. There will be no T-Mobile bloat or software on it. Which is why there's no WiFi calling on the device sold from T-Mobile.
WiFi calling is one of T-Mobile's best features. Because it allows you to use your WiFi network to make calls instead of depending on the coverage of T-Mobile. Yes, it's not a fix for their coverage, but it definitely does help. There are already a ton of devices that feature WiFi calling on T-Mobile's shelves and those include the Galaxy S4, Galaxy Note 3, LG G2, and even the Lumia 521. Of course that's not the entire list, just a few of the flagships. Just about every T-Mobile branded device has WiFi calling built in. Since the Nexus 5 isn't branded, it's not built in. Which is why this shouldn't surprise you.
Last year, a lot of people were upset that the Nexus 4 didn't support WiFi calling on T-Mobile. Which wasn't a surprise because, again, it's the exact same phone that was being sold through Google Play. So the Nexus 5 not supporting WiFi calling shouldn't surprise you in the least. In fact, if it did surprise you, that'd surprise me. Kinda confusing huh?
Of course, that doesn't mean you shouldn't pick up the Nexus 5. It'll be going for about $42 down and $17 per month. Which is about half the price of most other flagships on T-Mobile. The Nexus 5 is featuring a 5-inch 1080p display, with a Snapdragon 800 processor, 2GB of RAM, and 16GB or 32GB internal storage. It's also powered by a 2300mAh battery and Android 4.4 - KitKat.