iOS 9, upgradable to iOS 9.0.1
Apple A9 Chipset, Dual-core 1.84 GHz CPU, PowerVR GT7600 (six-core graphics) GPU
5.5 inches, LED-backlit IPS LCD, capacitive touchscreen (1080 x 1920 pixels)
Vibration, proprietary ringtones, Loudspeaker, 3.5mm jack
64GB storage, 2 GB RAM internal memory
3G - 4G - GPRS - EDGE
Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Bluetooth v4.2, A2DP, LE
12 MP, (4608 x 2592 pixels) camera, optical image stabilization, phase detection autofocus, dual-LED (dual tone) flash
video recording
iMessage, SMS (threaded view), MMS, Email, Push Email
HTML5 (Safari) Browser
GPS with A-GPS, GLONASS
Active noise cancellation with dedicated mic
Siri natural language commands and dictation
iCloud cloud service
iCloud Keychain
TV-out
Maps
Organizer
Document viewer/editor
Photo viewer/editor
Non-removable Li-Po 2750 mAh battery (10.45 Wh)
Up to 384 h (3G) (Stand-by)
Up to 24 h (3G) (Talk time)
Up to 80 h (Music play)
192 g