T-Mobile offers the Motorola Google Nexus 6 32GB No-Contract Android Smartphone for T-Mobile in Midnight Blue for $649.92. Coupon code "NEXUS6DEAL" cuts it to $601.92 (which you'll have to pay in 24 monthly payments of $25.08). With free shipping, that's tied with our mention from two weeks ago as $48 off list and the lowest total price we've seen for this phone. Features include a 5.96" 1440x2560 HD LCD with Corning Gorilla Glass 3, Qualcomm Snapdragon 805 2.7GHz quad-core processor, 3GB RAM, 13-megapixel rear camera, 2-megapixel front-facing camera, 802.11ac wireless, Bluetooth 4.0, wireless charging capability (wireless charging station sold separately), and Android 5.0 OS (Lollipop).
Of note, a $15 SIM Starter Kit fee applies, and if you cancel your plan before your 24 months is up, you'll owe the remaining balance of the phone.