That is weird, but just recently T-Mobile decided to stop offering the Nexus 4 with down payments, like every other phone offered by T-Mobile, even the iPhone 5. For limited time, the Nexus 4 was offered for $49 dollars, now you will have to pay full price at front , $ 428.00 + tax.
You can buy the same phone, same, characteristics, with less directly from Google Play .
The Nexus 4 features :
• Chipset: Qualcomm Snapdragon™ S4 Pro processor with 1.5GHz Quad-Core Krait CPUs
• Operating System: Android 4.2, Jelly Bean
• Network: 3G (WCDMA), HSPA+
• Display: 4.7-inch WXGA True HD IPS Plus (1280 x 768 pixels)
• Memory: 8GB / 16GB
• RAM: 2GB
• Camera: 8.0MP rear / 1.3MP HD front
• Battery: 2,100mAh Li-Polymer (embedded) / Talk time: 15.3 hours / Standby: 390 hours
• Size: 133.9 x 68.7 x 9.1mm
• Weight: 139g
• Other: Wireless charging, NFC