At T-Mobile, preorder the new Apple iPhone XS or XS Max T-Mobile Smartphone and get 25% off select accessories via coupon code "CUSTOMER25". These phones feature a new A12 Bionic chip, 3D Touch and a speed-enhanced Face ID, Super Retina OLED display, IP68 water-resistance rating, Dolby Vision and HDR10 support, dual 12MP rear cameras with wide and telephoto lenses plus 7MP front-facing camera, and more.