It's not cellphone. Device supports data only. NFC: Apple Pay only. Flash ROM memory: 16, 64 or 128 GB. Retina Display with antireflective coating & fingerprint-resistant oleophobic coating. A8X chip with 64-bit architecture, M8 motion coprocessor. Autofocus, f/2.4 aperture, five-element lens, hybrid IR filter, panorama (up to 43MP). Slo-mo (120 fps), video image stabilization, 3x video zoom. FaceTime HD Camera: f/2.2 aperture, 720p HD video recording, auto-HDR photos and videos. Fingerprint identity sensor built into the Home button. WiFi 2.4 GHz and 5GHz; HT80 with MIMO. 2G, 3G &4 G networks support depending on version and carrier. LTE bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29, 38, 39, 40, 41. Includes Apple SIM - U.S. and UK only. Digital compass. FaceTime video. Video formats supported: H.264 video up to 1080p, 60 frames per second, High Profile level 5.0 with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format. Up to 10 hours of surfing the web on Wi-Fi, watching video, or listening to music. Up to 9 hours of surfing the web using cellular data network. Three-axis gyro, accelerometer, barometer, ambient light sensor.