Display

• Type: Retina HD display
• Technology: IPS LCD with LED backlight
• Size: 4.7 inches (diagonal)
• Resolution: 1334 x 750 pixels (326 ppi)
• Aspect Ratio: 16:9
• Features: Fingerprint-resistant oleophobic coating

Processor and Performance

• Chipset: Apple A8 (28 nm)
• CPU: Dual-core 1.3 GHz Cyclone (ARM v8-based)
• GPU: PowerVR G6430 (quad-core graphics)
• Performance: Capable of handling most tasks at the time of release, but may struggle with demanding modern applications.

Memory

• Internal Storage: 16GB, 64GB, or 128GB (no expandable storage)
• RAM: 1GB DDR3

Camera

• Rear Camera: Single 8MP sensor, ƒ/2.2 aperture, autofocus, optical image stabilization (iPhone 6 Plus only), True Tone flash
• Front Camera: 1.2MP sensor, ƒ/2.4 aperture, face detection

Connectivity

• Cellular Network: GSM/EDGE, CDMA/EV-DO, UMTS/HSPA/HSPA+, LTE
• Wi-Fi: 802.11 a/b/g/n, dual-band
• Bluetooth: Version 4.0 with A2DP, EDR
• GPS: Built-in GPS and GLONASS
• NFC: No
• Lightning Port: For charging and data transfer

Sensors

• Fingerprint sensor (Touch ID)
• Accelerometer
• Gyroscope
• Compass

Battery

• Non-removable lithium-ion battery
• Up to 10 hours of talk time (LTE)
• Up to 11 hours of video playback (Wi-Fi)
• Up to 50 hours of audio playback
• Battery life may be lower than originally advertised due to age and usage patterns.

Operating System

• Originally shipped with iOS 8, upgradable to iOS 12.5.6 (latest version supported as of May 28, 2024)
• Newer versions of iOS may not run as smoothly due to hardware limitations.

Other Features

• Barometer (iPhone 6 Plus only)
• Available in multiple colors (Space Gray, Silver, Gold)
• Water and dust resistant (limited, not an official rating)

Dimensions and Weight

• Height: 138.1 mm (5.44 inches)
• Width: 67 mm (2.64 inches)
• Depth: 6.9 mm (0.27 inches)
• Weight: 132 g (4.7 oz) (Wi-Fi model), 138 g (4.9 oz) (cellular model)