4.0 inches, 640 x 1136 pixels (~326 ppi pixel density)Sensors: Accelerometer, gyro, proximity, compass, barometer, Fingerprint
Entertainment
Audio/video player and editor, 3.5mm audio jack, TV-out, Twitter and Facebook integration, iCloud cloud service, iCloud Keychain, Image editor, Games (built-in + downloadable)
Alerts
Proprietary ringtones
Primary
12 MP, f/2.2, 29mm, phase detection autofocus, dual-LED (dual tone) flash, 1/3" sensor size, 1.22 m pixel size, geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama), Video (2160p@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps), 2ndry 1.2 MP, f/2.4, 31mm, 720p@30fps, face detection, HDR, FaceTime over Wi-Fi or Cellular
Features
GPS + A-GPS support and GLONASS, Nano SIM card support only, Apple Pay (Visa, MasterCard, AMEX certified), Active noise cancellation with dedicated mic, iCloud service, Siri natural language commands and dictation, Google Maps, Voice memo/command/dial, Speakerphone
Connectivity
Bluetooth v4.2 with A2DP, LE, USB (v2.0, reversible connector), WLAN (Wi-Fi 802.11 a/b/g/n/ac, hotspot), GPRS, EDGE, 3G HSPA, 4G (LTE Cat4 150/50 Mbps)