| OS | iOS 9, upgradable to iOS 11.0.2 |
| Chipset | Apple A9 |
| CPU | Dual-core 1.84 GHz Twister |
| GPU | PowerVR GT7600 (six-core graphics) |
| 2G | Yes |
| 3G | Yes |
| 4G | Yes |
| Dimensions | 138.3 x 67.1 x 7.1 mm |
| Weight | 143 g |
| SIM | Nano-SIM |
| Colors | Space Gray, Silver, Gold, Rose Gold |
| Technology | LED-backlit IPS LCD, capacitive touchscreen, 16M colors |
| Size | 4.7 inches |
| Resolution | 750 x 1334 pixels, 16:9 ratio (~326 ppi density) |
| Multitouch | Yes |
| Built-in | 16/32/64/128 GB |
| Card | No |
| RAM | 2 GB |
| Phonebook | Yes |
| Call records | No |
| Back | 12 MP, f/2.2, 29mm, phase detection autofocus, dual-LED (dual tone) flash |
| Front | 5 MP, f/2.2, 31mm, 1080p@30fps, 720p@240fps, face detection, HDR, panorama |
| Video | 2160p@30fps, 1080p@60fps,1080p@120fps, 720p@240fps |
| Features | 1/3" sensor size, 1.22 µm pixel size, geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama) |
| Bluetooth | 4.2, A2DP, LE |
| WLAN | Wi-Fi 802.11 |
| GPS | Yes |
| Radio | No |
| USB | 2.0, proprietary reversible connector |
| NFC | Yes (Apple Pay only) |
| Data | GPRS, EDGE, 3G (HSPA 42.2/5.76 Mbps, 4G LTE Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps |
| Alert types | Vibration, proprietary ringtones |
| Loudspeaker | Yes |
| 3.5mm jack | Yes |
| Capacity | 1715 mAh |
| Standby | Up to 240 h (3G) |
| Talktime | Up to 14 h (3G) |
| Removable | No |
| Sensors | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer |
| Browser | HTML5 (Safari) |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email |
| Torch | Yes |
| Games | Downloadable |
| Java | No |
| Extra | GPS + A-GPS support and GLONASS, Nano-SIM card support only, Active noise cancellation with dedicated mic, Siri natural language commands and dictation, Organizer, Google Maps, Document editor, Fingerprint sensor (Touch ID), Apple Pay (Visa, MasterCard, A |