Summary | 68 Score | 75 Score | 74 Score | 77 Score |
| Performance | Apple A7 1 GB RAM iOS 7, up to iOS 9.0.2 | Qualcomm Snapdragon 625 MSM8953 3 GB RAM Android v6.0 (Marshmallow) | Qualcomm Snapdragon 820 MSM8996 6 GB RAM Android v6.0.1 (Marshmallow) | Mediatek MT6755 Helio P10 4 GB RAM Android OS, v5.1 |
| Display | 4 inch 640 x 1136 pixels 326 PPI Density | 5.2 inch 1080 x 1920 pixels 424 PPI Density | 5.5 inch 1080 x 1920 pixels 401 PPI Density | 5.5 inch 1080 x 1920 pixels 401 PPI Density |
| Camera | 8 MP (Main) 1.2 MP (Front) | 16 MP (Main) 8 MP (Front) 4K Video Recording | 16 MP (Main) 8 MP (Front) 4K Video Recording | 13 MP (Main) 16 MP (Front) |
| Battery | 1560 mAh Li-Po | 2500 mAh Li-Po | 3000 mAh Li-Polymer | 2850 mAh Li-Po |
Display |
| Screen Size | 4 inch | 5.2 inch | 5.5 inch | 5.5 inch |
| Screen Resolution | 640x1136 pixels | Full HD (1080 x 1920 pixels) | Full HD (1080 x 1920 pixels) | 1080x1920 pixels |
| Pixel Density | 326 PPI | 424 PPI | 401 PPI | 401 PPI |
| Display Type | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | IPS LCD Capacitive Touchscreen, Multi-touch | Optic AMOLED | AMOLED capacitive touchscreen, 16M colors |
| Gorilla Glass | Yes | Yes | Yes | Yes |
| Screen Protection | Corning Gorilla Glass, oleophobic coating | Corning Gorilla Glass 3 | Corning Gorilla Glass 4 | Corning Gorilla Glass 4 |
Chipset |
| Brand | Apple Mobiles | Asus Mobiles | Oneplus Mobiles | Oppo Mobiles |
| Chipset | Apple A7 | Qualcomm Snapdragon 625 MSM8953 | Qualcomm Snapdragon 820 MSM8996 | Mediatek MT6755 Helio P10 |
| Processor | Dual-core 1.3 GHz Cyclone (ARM v8-based) | Octa core, 2 GHz, Cortex A53 | Quad core (2.2 GHz, Dual core, Kryo + 1.6 GHz, Dual core, Kryo) | Octa-core 2.0 GHz Cortex-A53 |
| RAM | 1 GB RAM | 3 GB RAM | 6 GB RAM | 4 GB RAM |
| GPU | PowerVR G6430 (quad-core graphics) | Adreno 506 | Adreno 530 | Mali-T860MP2 |
Camera |
| Rear Camera Resolution | 8 MP | 16 MP | 16 MP | 13 MP |
| Front Camera Resolution | 1.2 MP | 8 MP | 8 MP | 16 MP |
| Video | | 4K Video Recording | 4K Video Recording | |
| Camera Features | Autofocus, Flash | Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging | Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging | Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging |
General |
| Operating System | iOS | Android | Android | Android |
| OS Version | iOS 7, up to iOS 9.0.2 | Android v6.0 (Marshmallow) | Android v6.0.1 (Marshmallow) | Android OS, v5.1 |
| Weight | 112 g | 155 g | 158 g | 145 g |
| Dimensions | 123.8 x 58.6 x 7.6 mm | 152.5 | 152.7 x 74.7 x 7.35 mm | 151.8 x 74.3 x 6.6 mm |
| Thickness | 7.6mm | 7.6mm | 7.3mm | 6.6mm |
Storage |
| Internal Storage | 16 GB | 32 GB | 64 GB | 64 GB |
| Card Slot | No | microSD, Up to 128 G | No | microSD, up to 128 GB |
| Other | 16GB storage, no card slot | 32GB storage, Expandable up to 128GB via microSD card (Hybrid sim slot) | 64GB InBuilt strorage | 64GB storage, microSD card slot |
Communication |
| SIM Card Slots | Single SIM | Dual SIM | Dual SIM | Dual SIM |
| SIM Card Type | Nano-SIM | Nano-SIM | Nano-SIM | Nano-SIM |
| Bluetooth | v4.0, A2DP | v4.1 | v4.2 | v4.0 |
| 3.5 mm Jack | Yes | Yes | Yes | Yes |
| NFC | 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 | TD-LTE 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) | TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20) | LTE band 1(2100), 3(1800), 5(850), 38(2600), 39(1900), 40(2300), 41(2500) |
| 3G | HSDPA 850 / 900 / 1700 / 1900 / 2100 - A1533 (GSM), A1453 | UMTS 1900 / 2100 / 850 / 900 MHz | UMTS 1900 / 2100 / 850 / 900 MHz | HSDPA 850 / 900 / 1900 / 2100 |
| 2G | GSM 850 / 900 / 1800 / 1900 - all models | GSM 1800 / 1900 / 850 / 900 MHz | GSM 1800 / 1900 / 850 / 900 MHz | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11, a/ac/b/g/n | Wi-Fi 802.11, a/ac/b/g/n | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot |
| GPS | Yes, with A-GPS, GLONASS | with A-GPS, Glonass | A-GPS, Glonass | A-GPS |
| GPRS | | | | |
| EDGE | | | | |
| Radio | | | | |
Battery |
| Battery Capacity | 1560 mAh | 2500 mAh | 3000 mAh | 2850 mAh |
| Battery Type | Li-Po | Li-Po | Li-Polymer | Li-Po |
| 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 | Light sensor Proximity sensor Accelerometer Barometer Compass Gyroscope | Fingerprint accelerometer gyro proximity compass | Fingerprint accelerometer gyro proximity compass |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email | | SMS (threaded view), MMS, Email, IM, Push Email | SMS (threaded view), MMS, Email, Push Email |
| Java | No | | 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 , DivX/Xvid/MP4/H.265 player , MP3/eAAC+/WMA/WAV/FLAC player , Document viewer , Photo/video editor | Fast battery charging , Active noise cancellation with dedicated mic , MP4/H.264 player , MP3/WAV/eAAC+/FLAC player , Document viewer , Photo/video editor |