Summary | 73 Score | 80 Score | 75 Score | |
| Performance | Apple A9 2 GB RAM iOS 9, up to iOS 9.0.2 | Snapdragon 820 SoC 4 GB RAM Android 6.0.1 Marshmallow | Qualcomm Snapdragon 810 SoC 3 GB RAM Android, v7.0 (Nougat) with HTC Sense | |
| Display | 5.5 inch 1080 x 1920 pixels 401 PPI Density | 5.5 inch 2560 x 1440 pixels 534 PPI Density | 5.5 inch 1440 x 2560 pixels 534 PPI Density | |
| Camera | 12 MP (Main) 5 MP (Front) 4K Video Recording | 21 MP (Main) 8 MP (Front) 4K Video Recording | 16 MP (Main) 8 MP (Front) 4K Video Recording | |
| Battery | 2915 mAh Li-Po | 3000 mAh Li-ion | 3200 mAh Li-ion | |
Display |
| Screen Size | 5.5 inch | 5.5 inch | 5.5 inch | |
| Screen Resolution | 1080x1920 pixels | 2560 x 1440 pixels | 1440 x 2560 pixels | |
| Pixel Density | 401 PPI | 534 PPI | 534 PPI | |
| Display Type | LED-backlit IPS LCD, capacitive touchscreen, 16M colors | FHD | Super LCD 3 | |
| Gorilla Glass | Yes | Yes | Yes | |
| Screen Protection | - | - | Corning Gorilla Glass 5 | |
Chipset |
| Brand | Apple Mobiles | Blackberry Mobiles | HTC Mobiles | |
| Chipset | Apple A9 | Snapdragon 820 SoC | Qualcomm Snapdragon 810 SoC | |
| Processor | Dual-core 1.84 GHz Twister | Quad Core processor | 2 GHz Octa core processor | |
| RAM | 2 GB RAM | 4 GB RAM | 3 GB RAM | |
| GPU | PowerVR GT7600 (six-core graphics) | Adreno 530 GPU | Adreno 530 GPU | |
Camera |
| Rear Camera Resolution | 12 MP | 21 MP | 16 MP | |
| Front Camera Resolution | 5 MP | 8 MP | 8 MP | |
| Video | 4K Video Recording | 4K Video Recording | 4K Video Recording | |
| Camera Features | 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 | |
| OS Version | iOS 9, up to iOS 9.0.2 | Android 6.0.1 Marshmallow | Android, v7.0 (Nougat) with HTC Sense | |
| Weight | 192 g | 165 g | 174 g | |
| Dimensions | 158.2 x 77.9 x 7.3 mm | 153.9 x 75.4 x 7mm | 153.59 x 77.3 x 8.09 mm | |
| Thickness | 7.3mm | 7mm | 8mm | |
Storage |
| Internal Storage | 16 GB | 32 GB | 32 GB | |
| Card Slot | No | microSD | microSD, up to 2TB | |
| Other | 16/64/128GB storage, no card slot | 32GB inbuilt | 32GB, Expandable upto 2TB | |
Communication |
| SIM Card Slots | Single SIM | Single SIM | Dual SIM | |
| SIM Card Type | Nano-SIM | Nano-SIM | Nano-SIM | |
| Bluetooth | v4.2, A2DP, LE | v4.2 | v4.1 | |
| 3.5 mm Jack | Yes | Yes | Yes | |
| NFC | Yes (Apple Pay only) | No | | |
Connectivity |
| VoLTE | | | | |
| 4G | 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 | 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) / 700(band 28) / 1900(band 2) / 800(band 20) | FDD: Bands 1,3,5,7,8,20,28, TDD: Bands 38, 40, 41. Support Cat 6 LTE, download up to 300 Mbps, upload up to 50 Mbps | |
| 3G | HSDPA 850 / 900 / 1700 / 1900 / 2100 | UMTS 1900 / 2100 / 850 / 900 MHz | 850/900/1900/2100 MHz | |
| 2G | GSM 850 / 900 / 1800 / 1900 | GSM 1800 / 1900 / 850 / 900 MHz | 850/900/1800/1900 MHz | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 a/g/n | Wi-Fi 802.11 a/b/g/n/ac (2.4 & 5 GHz) | |
| GPS | A-GPS, GLONASS | A-GPS, Glonass | A-GPS | |
| GPRS | | | | |
| EDGE | | | | |
| Radio | | | | |
Battery |
| Battery Capacity | 2915 mAh | 3000 mAh | 3200 mAh | |
| Battery Type | Li-Po | Li-ion | Li-ion | |
| Standby Time | Up to 384 h (3G) | | Up to 20 Days | |
| Talk Time | Up to 24 h (3G) | Up to 26H | Up to 23 hours | |
Other Features |
| Fingerprint Scanner | | | | |
| Waterproof | | | | |
| Sensors | Accelerometer gyro proximity compass barometer | Light sensor Proximity sensor Accelerometer Compass Gyroscope | Ambient light sensor Proximity sensor Motion G-sensor Compass sensor Gyro sensor Magnetic sensor | |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email | | | |
| Java | No | | | |
| Other | 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 | | | |