Summary | 68 Score | 73 Score | 71 Score | 75 Score |
| Performance | Apple A7 1 GB RAM iOS 7, up to iOS 9.0.2 | Apple A9 2 GB RAM iOS 9, Upgradable to iOS 10 | Apple A10 3 GB RAM iOS v10 | MediaTek MT6750 3 GB RAM Android v5.1 (Lollipop) |
| Display | 4 inch 640 x 1136 pixels 326 PPI Density | 5.5 inch 1080 x 1920 pixels 401 PPI Density | 5.5 inch 1920 x 1080 pixels 401 PPI Density | 5.2 inch 720 x 1280 pixels 282 PPI Density |
| Camera | 8 MP (Main) 1.2 MP (Front) | 12 MP (Main) 5 MP (Front) | 12 + 12 MP (Main) 7 MP (Front) 4K Video Recording Dual Camera | 13 MP (Main) 5 MP (Front) |
| Battery | 1560 mAh Li-Po | 2915 mAh Li-Po | 2900 mAh Li-ion | 2900 mAh Li-Po |
Display |
| Screen Size | 4 inch | 5.5 inch | 5.5 inch | 5.2 inch |
| Screen Resolution | 640x1136 pixels | 1080x1920 pixels | 1920 x 1080 pixels | HD (720 x 1280 pixels) |
| Pixel Density | 326 PPI | 401 PPI | 401 PPI | 282 PPI |
| Display Type | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | IPS LCD Capacitive Touchscreen, Multi-touch |
| Gorilla Glass | Yes | Yes | Yes | - |
| Screen Protection | Corning Gorilla Glass, oleophobic coating | - | Ion-strengthened glass, oleophobic coating | - |
Chipset |
| Brand | Apple Mobiles | Apple Mobiles | Apple Mobiles | Oppo Mobiles |
| Chipset | Apple A7 | Apple A9 | Apple A10 | MediaTek MT6750 |
| Processor | Dual-core 1.3 GHz Cyclone (ARM v8-based) | Dual-core 1.84 GHz Twister | 2.23 GHz Quad-core, 64-bit Processor | Octa core (1.5 GHz, Quad core, Cortex A53 + 1 GHz, Quad core, Cortex A53) |
| RAM | 1 GB RAM | 2 GB RAM | 3 GB RAM | 3 GB RAM |
| GPU | PowerVR G6430 (quad-core graphics) | PowerVR GT7600 (six-core graphics) | six-core graphics | Mali-T860 MP2 |
Camera |
| Rear Camera Resolution | 8 MP | 12 MP | 12 + 12 MP | 13 MP |
| Front Camera Resolution | 1.2 MP | 5 MP | 7 MP | 5 MP |
| Video | | | 4K Video Recording | |
| Camera Features | Autofocus, Flash | Autofocus, Touch Focus, Flash, Panorama | Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging | Autofocus, Touch Focus, Flash |
General |
| Operating System | iOS | iOS | iOS | Android |
| OS Version | iOS 7, up to iOS 9.0.2 | iOS 9, Upgradable to iOS 10 | iOS v10 | Android v5.1 (Lollipop) |
| Weight | 112 g | 192 g | 188 g | 147 g |
| Dimensions | 123.8 x 58.6 x 7.6 mm | 158.2 x 77.9 x 7.3 mm | 158.20 x 77.90 x 7.30 mm | 149.1 x 72.9 x 7.6 mm |
| Thickness | 7.6mm | 7.3mm | 7.3mm | 7.6mm |
Storage |
| Internal Storage | 16 GB | 32 GB | 32 GB | 32 GB |
| Card Slot | No | No | No | microSD, Up to 256GB |
| Other | 16GB storage, no card slot | 32GB storage, no card slot | 32GB inbuilt | 32GB, Expandable upto 256GB |
Communication |
| SIM Card Slots | Single SIM | Single SIM | Single SIM | Dual SIM |
| SIM Card Type | Nano-SIM | Nano-SIM | Nano-SIM | Nano-SIM |
| Bluetooth | v4.0, A2DP | v4.2, A2DP, LE | No | v4.1 |
| 3.5 mm Jack | Yes | Yes | Yes | Yes |
| NFC | No | Yes (Apple Pay only) | Apple Pay only | No |
Connectivity |
| VoLTE | | | | |
| 4G | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 13(700), 17(700), 19(800), 20(800), 25(1900) - A1533 GSM, A1533 CDMA | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300) - A1633 | LTE-A, HSPA, Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30 | TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20) |
| 3G | HSDPA 850 / 900 / 1700 / 1900 / 2100 - A1533 (GSM), A1453 | HSDPA 850 / 900 / 1700 / 1900 / 2100 | 850, 900, 1700/2100, 1900, 2100 MHz | UMTS 2100 / 850 / 900 MHz |
| 2G | GSM 850 / 900 / 1800 / 1900 - all models | GSM 850 / 900 / 1800 / 1900 | 850, 900, 1800, 1900 MHz | GSM 1800 / 1900 / 850 / 900 MHz |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac | Wi-Fi 802.11, a/b/g/n/n 5GHz |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | A-GPS, GLONASS | A-GPS, Glonass |
| GPRS | | | | |
| EDGE | | | | |
| Radio | | | | |
Battery |
| Battery Capacity | 1560 mAh | 2915 mAh | 2900 mAh | 2900 mAh |
| Battery Type | Li-Po | Li-Po | Li-ion | Li-Po |
| Standby Time | Up to 250 h (2G) / Up to 250 h (3G) | Up to 384 h (3G) | Up to 384 h (3G) | |
| Talk Time | Up to 10 h (2G) / Up to 10 h (3G) | Up to 24 h (3G) | Up to 21 h (3G) | |
Other Features |
| Fingerprint Scanner | | | | |
| Waterproof | | | | |
| Sensors | Accelerometer gyro proximity compass | Accelerometer gyro proximity compass barometer | | Light sensor Proximity sensor Gravity sensor and Electronic compass |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email | iMessage, SMS (threaded view), MMS, Email, Push Email | | |
| Java | No | No | | |
| Other | Active noise cancellation with dedicated mic , Siri natural language commands and dictation , iCloud cloud service , iCloud Keychain , TV-out , Maps , Audio/video player/editor , Organizer , Document viewer/editor , Photo viewer/editor , Voice | Active noise cancellation with dedicated mic , Siri natural language commands and dictation , iCloud cloud service , iCloud Keychain , TV-out , Maps , Organizer , Document editor , Photo/video editor | | |