| Key Specifications | RAM | 2 GB | 
                                                                                |  | Storage | 16 GB + 32 GB + 64 GB + 128 GB | 
                                                                                |  | Rear Camera | 12 MP, f/2.2, 29mm (standard), 1/3", 1.22µm, PDAF, OIS | 
                                                                                |  | Front Camera | 5 MP, f/2.2, 31mm (standard) | 
                                                                                |  | Display | 5.5 inches, IPS LCD | 
                                                                                |  | Operating System | iOS 9, upgradable to iPadOS 14.5 | 
                                                                                |  | Processor | Dual-core 1.84 GHz Twister | 
                                                                                |  | Battery | Li-Ion 2750 mAh, non-removable (10.45 Wh) | 
                                                                                | General | Announced | 2015-09-09 | 
                                                                                |  | Launch Date | 2015-09-25 | 
                                                                                |  | SIM Slot(s) | Nano-SIM | 
                                                                                |  | SIM Size | Nano-SIM | 
                                                                                |  | GSM/CDMA | GSM | 
                                                                                |  | 3G | Yes | 
                                                                                |  | 4G/ LTE | Yes | 
                                                                                |  | 5G | No | 
                                                                                | Body | Dimensions | 158.2 x 77.9 x 7.3 mm | 
                                                                                |  | Height | 158.2 mm | 
                                                                                |  | Width | 77.9 mm | 
                                                                                |  | Thickness | 7.3 mm | 
                                                                                |  | Weight | 192 g | 
                                                                                |  | Build Material | Glass front (Gorilla Glass), aluminum back, aluminum frame | 
                                                                                |  | Colors | Space Gray, Silver, Gold, Rose Gold | 
                                                                                |  | Waterproof | No | 
                                                                                | Display | Display Type | IPS LCD | 
                                                                                |  | Display Size | 5.5 inches | 
                                                                                |  | Screen To Body Ratio | ~67.7% screen-to-body ratio | 
                                                                                |  | Display Resolution | 1080 x 1920 pixels | 
                                                                                |  | Display Protection | Ion-strengthened glass, oleophobic coating | 
                                                                                |  | Pixel Density | ~401 ppi density | 
                                                                                |  | Display Features | 3D Touch display | 
                                                                                | Camera | Rear Camera | 12 MP, f/2.2, 29mm (standard), 1/3", 1.22µm, PDAF, OIS | 
                                                                                |  | Autofocus | Dual-LED dual-tone flash | 
                                                                                |  | Rear Camera Features | Dual-LED dual-tone flash, HDR | 
                                                                                |  | Rear Camera Video | 4K@30fps, 1080p@60fps, 1080p@120fps, 720p@240fps | 
                                                                                |  | Front Camera | 5 MP,  f/2.2, 31mm (standard) | 
                                                                                |  | Front Camera Features | Face detection, HDR, panorama | 
                                                                                |  | Front Camera Video | 720p@30fps | 
                                                                                | Memory | Card Slot | No | 
                                                                                |  | Internal | 16 GB, 2 GB | 
                                                                                |  |  | 32 GB, 2 GB | 
                                                                                |  |  | 64 GB, 2 GB | 
                                                                                |  |  | 128 GB, 2 GB | 
                                                                                |  | Expandable | No | 
                                                                                | Performance | OS | iOS 9, upgradable to iPadOS 14.5 | 
                                                                                |  | Chipset | Apple A9 (14 nm) | 
                                                                                |  | CPU | Dual-core 1.84 GHz Twister | 
                                                                                |  | GPU | PowerVR GT7600 (six-core graphics) | 
                                                                                | Network | Technology | GSM / CDMA / HSPA / EVDO / LTE | 
                                                                                |  | 2G Bands | GSM 850 / 900 / 1800 / 1900, CDMA 800 / 1700 / 1900 / 2100 | 
                                                                                |  | 3G Bands | HSDPA 850 / 900 / 1700 / 1900 / 2100, CDMA2000 1xEV-DO | 
                                                                                |  | 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30 - A1633, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41 - A1634 | 
                                                                                |  | 5G Bands | No | 
                                                                                |  | Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps | 
                                                                                |  | SAR Value | 1.12 W/kg (head) 1.14 W/kg (body) | 
                                                                                | Connectivity | WiFi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | 
                                                                                |  | Bluetooth | 4.2, A2DP, LE | 
                                                                                |  | GPS | Yes, with A-GPS, GLONASS, GALILEO, QZSS | 
                                                                                |  | NFC | Yes (Apple Pay only) | 
                                                                                |  | Infrared Port | No | 
                                                                                |  | USB | Lightning, USB 2.0 | 
                                                                                |  | WiFi Calling | Yes | 
                                                                                |  | eSIM | No | 
                                                                                | Security | Face Unlock | No | 
                                                                                |  | Finger Unlock | Yes | 
                                                                                | Phone Sensors | Sensors | Fingerprint (front-mounted) | 
                                                                                |  |  | Barometer | 
                                                                                |  |  | Accelerometer | 
                                                                                |  |  | Gyro | 
                                                                                |  |  | Proximity | 
                                                                                |  |  | Compass | 
                                                                                | Multimedia | FM Radio | Yes | 
                                                                                |  | Loudspeaker | Yes | 
                                                                                |  | Audio Jack | Yes | 
                                                                                | Battery | Battery Type | Li-Ion 2750 mAh, non-removable (10.45 Wh) | 
                                                                                |  | Battery Capacity | 2750 mAh | 
                                                                                |  | Fast Charging | No | 
                                                                                |  | Charging Time | NA | 
                                                                                |  | Battery Life | Endurance rating 85h | 
                                                                                |  | Removable battery | No | 
                                                                                |  | Wireless charging | No | 
                                                                                | Warranty | Warranty Summary | Brand Warranty of 1 Year |