| Hardware and OS | ZTE Axon 9 | Oppo A3s |
| Operating system | Android 8.0 Oreo | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core Kryo 385 (4 x 2.8GHz Cortex-A75 & 4 x 1.8GHz Cortex-A55) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Qualcomm Adreno 630 | Adreno 506 |
| RAM | 4GB/6GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Internal Storage | 64GB/128GB/256GB | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with MiFavor UI | |
| Display | ZTE Axon 9 | Oppo A3s |
| Type | AMOLED capacitive touchscreen | IPS LCD |
| Size | 6.0-inches QHD | 6.2" inc |
| Resolution | 2960 x 1440 Pixels, 24 bit color depth | 720 x 1520 px |
| Touchscreen | Yes Multi Touch Support | capacitive touchscreen |
| Screen-to-Body Ratio | | 81.2% |
| Display area | | 95.9 cm2 |
| Display aspect ratio | | 19:9 (height:width) |
| Pixel Density | ~ 549 ppi | 271 PPI |
| Protection | Yes | |
| Colors | 16M Colors | 16M |
| Features | AMOLED, QHD display, ~549 PPI Pixel Density, Capacitive, Multi-touch, 18.5:9 Ratio , 2.5D Curved Glass Screen, Corning Gorilla Glass 5, Scratch Resistant | |
| Connectivity | ZTE Axon 9 | Oppo A3s |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE: 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) MHz - China LTE: 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 20(800) MHz - Europe | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, 802.11 n 5GHz, Dual Band, Wi-Fi Direct, Wi-Fi Display, Wi-Fi Hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| NFC | yes | |
| Network | | GSM / HSPA / LTE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | | 4.2, A2DP, LE |
| SIM | Standard SIM | |
| Edge | | Yes |
| Dual SIM | Dual Hybrid SIM (Nano SIM, Nano-SIM), Dual Standby | |
| GPRS | | Yes |
| GPS | Yes, with GPS, A-GPS, GLONASS, BDS | Yes, with A-GPS |
| Speed | LTE Cat-12 600 Mbps Download, 100 Mbps Upload | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | USB Type-C 1.0 with Charging and Mass Storage Function | microUSB 2.0, USB On-The-Go |
| Camera | ZTE Axon 9 | Oppo A3s |
| Image | 5120 x 3840 Pixels | |
| Main camera | 20 Megapixels with Dual-LED and AF | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | Yes with Dual Tone LED Flash | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 13 Megapixel, 13 Megapixels Front Facing Camera | 8 MP, Single |
| Multimedia | ZTE Axon 9 | Oppo A3s |
| Loudspeaker | Yes with Single Bottom Speaker | |
| Video Playback | Up to 11.3 Hours | |
| Video Out | Yes With Wireless Media Connection | |
| Ring Tones | MP3, eAAC , WAV ringtones | |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio |
| Design | ZTE Axon 9 | Oppo A3s |
| Colors | | Red, Dark Purple |
| Dimensions | | 156.2 x 75.6 x 8.2 mm |
| Weight | | 168 g |
| Battery | ZTE Axon 9 | Oppo A3s |
| Capacity | 3,500 mAh | |
| Placement | Non-Removable | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | ZTE Axon 9 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | Proximity Sensor, Accelerometer, Ambient Light, Compass, Fingerprint (Under Display), Gyroscope Sensor | Accelerometer, proximity, compass |