| OS | iOS 11 |
| Chipset | Apple A11 Bionic |
| CPU | Hexa-core (2x Monsoon + 4x Mistral) |
| GPU | Apple GPU (three-core graphics) |
| 2G | Yes |
| 3G | Yes |
| 4G | Yes |
| Dimensions | 138.4 x 67.3 x 7.3 mm |
| Weight | 148 g |
| SIM | Nano-SIM |
| Colors | Silver, Space Gray, Gold |
| Technology | LED-backlit IPS LCD, capacitive touchscreen, 16M colors |
| Size | 4.7 inches (~65.4% screen-to-body ratio) |
| Resolution | 750 x 1334 pixels (~326 ppi pixel density) |
| Multitouch | Yes |
| Built-in | 64/256 GB |
| Card | No |
| RAM | 2GB |
| Back | 12 MP, f/1.8, 28mm, phase detection autofocus, OIS, quad-LED (dual tone) |
| Front | 7 MP, f/2.2, 1080p@30fps, 720p@240fps, face detection, HDR, panorama |
| Video | 2160p@24/30/60fps, 1080p@30/60/120/240fps, |
| Features | Geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama) |
| Bluetooth | 5.0, A2DP, LE |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Radio | No |
| USB | 2.0, reversible connector |
| NFC | Yes (Apple Pay only) |
| Data | GPRS, EDGE, 3G (HSPA 42.2/5.76 Mbps), 4G (LTE-A (4CA) Cat16 1024/150 Mbps, EV-DO Rev.A 3.1 ) |
| Alert types | Vibration, proprietary ringtones |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm jack | No |
| Capacity | 1821 mAh |
| 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 | Active noise cancellation with dedicated mic, Lightning to 3.5 mm headphone jack adapter incl, IP67 certified - dust and water resistant, Siri natural language commands and dictation, iCloud cloud service, Water resistant up to 1.5 meters and 30 minutes, |