Summary | 68 Score | 77 Score | 75 Score | 79 Score |
| Performance | Apple A7 1 GB RAM iOS 7, up to iOS 9.0.2 | Mediatek MT6755 Helio P10 4 GB RAM Android OS, v5.1 | Qualcomm Snapdragon 430 2 GB RAM Android 6.0 (Marshmallow) | Qualcomm Snapdragon 425 2 GB RAM Android 6.0 Marshmallow with MIUI 8 |
| Display | 4 inch 640 x 1136 pixels 326 PPI Density | 5.5 inch 1080 x 1920 pixels 401 PPI Density | 5.2 inch 1280 x 720 pixels 282 PPI Density | 5 inch 1280 x 720 pixels 294 PPI Density |
| Camera | 8 MP (Main) 1.2 MP (Front) | 13 MP (Main) 16 MP (Front) | 8 MP (Main) 5 MP (Front) | 13 MP (Main) 5 MP (Front) |
| Battery | 1560 mAh Li-Po | 2850 mAh Li-Po | 2650 mAh Li-ion | 3120 mAh Li-ion |
Display |
| Screen Size | 4 inch | 5.5 inch | 5.2 inch | 5 inch |
| Screen Resolution | 640x1136 pixels | 1080x1920 pixels | 1280 x 720 pixels | 1280 x 720 pixels |
| Pixel Density | 326 PPI | 401 PPI | 282 PPI | 294 PPI |
| Display Type | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | AMOLED capacitive touchscreen, 16M colors | HD IPS 2.5D curved-edge display | IPS LCD, Multi-touch |
| Gorilla Glass | Yes | Yes | - | - |
| Screen Protection | Corning Gorilla Glass, oleophobic coating | Corning Gorilla Glass 4 | - | - |
Chipset |
| Brand | Apple Mobiles | Oppo Mobiles | Vivo Mobiles | Xiaomi Mobiles |
| Chipset | Apple A7 | Mediatek MT6755 Helio P10 | Qualcomm Snapdragon 430 | Qualcomm Snapdragon 425 |
| Processor | Dual-core 1.3 GHz Cyclone (ARM v8-based) | Octa-core 2.0 GHz Cortex-A53 | Octa core ( 4 x 1.2 GHz Cortex A53 + 4 x 1.5 GHz Cortex A53) 64-bit | 1.4Ghz Quad-core Processor |
| RAM | 1 GB RAM | 4 GB RAM | 2 GB RAM | 2 GB RAM |
| GPU | PowerVR G6430 (quad-core graphics) | Mali-T860MP2 | Adreno 505 GPU | Adreno 308 GPU |
Camera |
| Rear Camera Resolution | 8 MP | 13 MP | 8 MP | 13 MP |
| Front Camera Resolution | 1.2 MP | 16 MP | 5 MP | 5 MP |
| Video | | | | |
| Camera Features | Autofocus, Flash | Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging | Flash | Autofocus, Touch Focus, Flash |
General |
| Operating System | iOS | Android | Android | Android |
| OS Version | iOS 7, up to iOS 9.0.2 | Android OS, v5.1 | Android 6.0 (Marshmallow) | Android 6.0 Marshmallow with MIUI 8 |
| Weight | 112 g | 145 g | 142 g | 131.5 g |
| Dimensions | 123.8 x 58.6 x 7.6 mm | 151.8 x 74.3 x 6.6 mm | 147.9×72.9×7.5mm | |
| Thickness | 7.6mm | 6.6mm | 7.5mm | |
Storage |
| Internal Storage | 16 GB | 64 GB | 16 GB | 16 GB |
| Card Slot | No | microSD, up to 128 GB | microSD, up to 128 GB | microSD, Up to 128GB |
| Other | 16GB storage, no card slot | 64GB storage, microSD card slot | 16GB, Expandable up to 128GB | 16 GB, Expandable upto 128GB |
Communication |
| SIM Card Slots | Single SIM | Dual SIM | Dual SIM | Dual SIM |
| SIM Card Type | Nano-SIM | Nano-SIM | Micro-SIM | Micro-SIM |
| Bluetooth | v4.0, A2DP | v4.0 | v4.1 | v4.1 |
| 3.5 mm Jack | Yes | Yes | Yes | Yes |
| NFC | No | No | No | 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), 3(1800), 5(850), 38(2600), 39(1900), 40(2300), 41(2500) | FDD-LTE:B1/B3/B5, TDD-LTE:B40 | LTE 2100, LTE 800, LTE 1800, LTE 2600 |
| 3G | HSDPA 850 / 900 / 1700 / 1900 / 2100 - A1533 (GSM), A1453 | HSDPA 850 / 900 / 1900 / 2100 | WCDMA:B1/B5/B8 | UMTS 1900 / 2100 / 850 / 900 MHz |
| 2G | GSM 850 / 900 / 1800 / 1900 - all models | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM:B2/B3/B5/B8 | 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, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/g/n | Wi-Fi 802.11 a/g/n |
| GPS | Yes, with A-GPS, GLONASS | A-GPS | A-GPS, Glonass | A-GPS |
| GPRS | | | | |
| EDGE | | | | |
| Radio | | | | |
Battery |
| Battery Capacity | 1560 mAh | 2850 mAh | 2650 mAh | 3120 mAh |
| Battery Type | Li-Po | Li-Po | Li-ion | Li-ion |
| Standby Time | Up to 250 h (2G) / Up to 250 h (3G) | | | |
| Talk Time | Up to 10 h (2G) / Up to 10 h (3G) | | | |
Other Features |
| Fingerprint Scanner | | | | |
| Waterproof | | | | |
| Sensors | Accelerometer gyro proximity compass | Fingerprint accelerometer gyro proximity compass | Proximity sensor light sensor Accelerometer virtual Gyroscope | Light sensor Proximity sensor Accelerometer |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email | 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 | Fast battery charging , Active noise cancellation with dedicated mic , MP4/H.264 player , MP3/WAV/eAAC+/FLAC player , Document viewer , Photo/video editor | | |