| Design | Device Type | Smart Phone | Smart Phone | |
| OS | iOS 11 | Android 7.1.1 (Nougat), planned upgrade to Android 8.0 (Oreo) | |
| Dimension | 143.6 x 70.9 x 7.7 mm (5.65 x 2.79 x 0.30 in) | 151.5 x 73.7 x 7.9 mm (5.96 x 2.90 x 0.31 in) | |
| Weight | 174 g (6.14 oz) | 160 g (5.64 oz) | |
| Technology | 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | 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), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) | |
| SIM | Nano-SIM - IP67 certified - dust and water resistant - Water resistant up to 1 meter and 30 minutes - Apple Pay (Visa, MasterCard, AMEX certified) | Dual SIM (Nano-SIM, dual stand-by) | |
| Announced | September, 2017 | August, 2017 | |
| Status | October 25, 2017 | September 15, 2017 | |
| Display | Type | Super AMOLED capacitive touchscreen, 16M colors | IPS LCD capacitive touchscreen, 16M colors | |
| Size | 5.8 inches, 84.4 cm2 (~82.9% screen-to-body ratio) 1125 x 2436 pixels, 19.5:9 ratio (~458 ppi density) | 5.3 inches (~69.4% screen-to-body ratio) | |
| Multi-touch | Yes | Yes | |
| Protection | Scratch-resistant glass - Dolby Vision/HDR10 compliant - Wide color gamut display - 3D Touch display - True-tone display | Corning Gorilla Glass 5 - Always-on display | |
| Photography | Rear Camera | Dual: 12 MP (f/1.8, 28mm) + 12 MP (f/2.4, 52mm), OIS, phase detection autofocus, 2x optical zoom, quad-LED dual-tone flash | Dual: 13 MP (f/2.0, 1.12µm), phase detection & laser autofocus, Zeiss optics, OIS, dual-LED dual-tone flash | |
| Features | Geo-tagging, simultaneous 4K video and 8MP image recording, touch focus, face/smile detection, HDR (photo/panorama) | Geo-tagging, touch focus, face detection, HDR, panorama | |
| Video | 2160p@24/30/60fps, 1080p@30/60/120/240fps | 2160p@30fps, 1080p@30fp | |
| Front Camera | 7 MP (f/2.2, 32mm), 1080p@30fps, 720p@240fps, face detection, HDR | 13 MP (f/2.0, 1.12µm), 2160p, PDAF | |
| Memory | Card slot | No | microSD, up to 256 GB (uses SIM 2 slot) | |
| Internal | 64/256 GB, 3 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | |
| Sound | Alert types | Vibration, proprietary ringtones | Vibration; MP3, WAV ringtones | |
| Loudspeaker | Yes, with stereo speakers | Yes | |
| 3.5mm jack | No - Active noise cancellation with dedicated mic. - Lightning to 3.5 mm headphone jack adapter | Yes - 24-bit/192kHz audio - Nokia OZO audio - Active noise cancellation with dedicated mic | |
| Connectivity | GPRS | Yes | Yes | |
| EDGE | Yes | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat12 600/150 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | |
| NFC | Yes (Apple Pay only) | Yes | |
| USB | 2.0, proprietary reversible connector | 3.1, Type-C 1.0 reversible connector | |
| Battery | Capacity | Non-removable Li-Ion 2716 mAh battery | Non-removable Li-Ion 3090mAh battery | |
| Talk time | Up to 21 h (3G) | | |
| Music play | Up to 60 h | | |
| Tests | Display | Contrast ratio: Infinity (nominal), 5.013 (sunlight) | Contrast ratio: 1840:1 (nominal), 4.239 (sunlight) | |
| Loudspeaker | Voice 68dB / Noise 74dB / Ring 76dB | Voice 88dB / Noise 77dB / Ring 81dB | |
| Audio Quality | Noise -93.7dB / Crosstalk -82.8dB | Noise -94.2dB / Crosstalk -88.5dB | |
| Camera | Photo / Video | | |
| Battery Life | Lasts up to 2 hours longer than iPhone 7 | Endurance rating 78h | |
| Features | Chipset | Apple A11 Bionic | Qualcomm MSM8998 Snapdragon 835 | |
| CPU | Hexa-core (2x Monsoon + 4x Mistral) | Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo) | |
| GPU | Apple GPU (three-core graphics) | Adreno 540 | |
| Sensors | Face ID, accelerometer, gyro, proximity, compass, barometer | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, heart rate | |
| Messaging | iMessage, SMS (threaded view), MMS, Email, Push Email | SMS(threaded view), MMS, Email, Push Mail, IM | |
| Browser | HTML5 (Safari) | HTML5 | |
| Radio | No | No | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, QZSS | Yes, with A-GPS, GLONASS, BDS | |
| Java | No | No | |
| Colors | Space Gray, Silver | Tempered Blue, Polished Blue, Steel, Polished Copper | |
| Others | - Fast battery charging: 50% in 30 min - Qi wireless charging - Siri natural language commands and dictation - iCloud cloud service - MP3/WAV/AAX+/AIFF/Apple Lossless player - MP4/H.265 player - Audio/video/photo editor - Document editor | - Fast battery charging (Quick Charge 3.0) - MP4/H.264 player - MP3/WAV/eAAC+/FLAC player - ANT+ support - Photo/video editor - Document viewer | |