Size and Weight: 138.4 mm x 67.3 mm x 7.3 mm

Weight: 148 grams

Display:

Retina HD display
4.7-inch (diagonal) widescreen LCD Multi-Touch display with IPS technology
1334-by-750-pixel resolution at 326 ppi
1400:1 contrast ratio (typical)

Splash, Water, and Dust Resistant: Rated IP67 under IEC standard 60529

Chip:

A11 Bionic chip with 64-bit architecture
Neural engine
Embedded M11 motion coprocessor

Camera :

12MP camera
ƒ/1.8 aperture
Digital zoom up to 5x
Both models:

Optical image stabilization
Six‑element lens
Quad-LED True Tone flash with Slow Sync
Panorama (up to 63MP)
Sapphire crystal lens cover
Backside illumination sensor
Hybrid IR filter
Autofocus with Focus Pixels
Tap to focus with Focus Pixels
Live Photos with stabilization
Wide color capture for photos and Live Photos
Improved local tone mapping
Body and face detection
Exposure control
Noise reduction
Auto HDR for photos
Auto image stabilization
Burst mode
Timer mode
Photo geotagging
Image formats captured: HEIF and JPEG

Video Recording:

4K video recording at 24 fps, 30 fps, or 60 fps
1080p HD video recording at 30 fps or 60 fps
720p HD video recording at 30 fps
Optical image stabilization for video
Optical zoom; 6x digital zoom (iPhone 8 Plus only)
Quad-LED True Tone flash
Slo‑mo video support for 1080p at 120 fps or 240 fps
Time‑lapse video with stabilization
Cinematic video stabilization (1080p and 720p)
Continuous autofocus video
Body and face detection
Noise reduction
Take 8MP still photos while recording 4K video
Playback zoom
Video geotagging
Video formats recorded: HEVC and H.264

FaceTime HD Camera:

7MP camera
1080p HD video recording
Retina Flash
ƒ/2.2 aperture
Wide color capture for photos and Live Photos
Auto HDR
Backside illumination sensor
Body and face detection
Auto image stabilization
Burst mode
Exposure control
Timer mode