Apple iPhone 6 64 GB  Unlocked, Space Gray Retina display 4.7-inch (diagonal) LED-backlit widescreen MultiTouch display with IPS technology, 1334-by-750-pixel resolution at 326 ppi, Dual-domain pixels for wider viewing angles A8 chip with 64-bit architecture M8 motion coprocessor. Fingerprint identity sensor built into the Home button. Apple Pay. Siri5. Mail Attachment Support New 8-megapixel iSight camera with 1.5 pixels, Backside illumination sensor, Auto image stabilization, Improved face detection, Panorama (up to 43 megapixels) Apple Pay. Pay with your iPhone using Touch ID in stores and in apps. Nano-SIMAudio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV User-configurable maximum volume limit Built-in rechargeable, lithiumion battery. Talk time:Up to 14 hours on 3G, Internet use:Up to 10 hours on 3G, up to 10 hours on LTE, up to 11 hours on WiFi. Audio playback:Up to 50 hours