| Hardware and OS | Nubia Red Magic 3S | Oppo A3s |
| Operating system | Android 9.0, Redmagic OS 2.1 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa core 2.96GHz | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | 675MHz | Adreno 506 |
| RAM | 8 GB, 12 GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Internal Storage | 128 GB, 256 GB | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory Card Slot | No | |
| User Interface | Yes | |
| Display | Nubia Red Magic 3S | Oppo A3s |
| Type | AMOLED screen material | IPS LCD |
| Size | 6.65" large full HD screen | 6.2" inc |
| Resolution | 19.5:9 | 720 x 1520 px |
| Touchscreen | Yes | capacitive touchscreen |
| Screen-to-Body Ratio | | 81.2% |
| Display area | | 95.9 cm2 |
| Display aspect ratio | | 19:9 (height:width) |
| Pixel Density | 430 ppi | 271 PPI |
| Features | 240Hz touch refresh rate, 90Hz gaming screen, DC dimming, High contrast 100000:1 (min.) | |
| Colors | 16M | 16M |
| Connectivity | Nubia Red Magic 3S | Oppo A3s |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | FDD-LTE Band 1/2/3/4/ 5/7/8/12/ 17/18/19/20/26 | LTE |
| NFC | No | |
| Wi-Fi | Wifi a/b/g/n/ac 2.4g/5.0g dual frequency | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | | GSM / HSPA / LTE |
| SIM | Nano SIM | |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Dual SIM | Dual card dual standby single pass | |
| Bluetooth | | 4.2, A2DP, LE |
| Wireless Charging | No | |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | No | Yes, with A-GPS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | Type-C data line | microUSB 2.0, USB On-The-Go |
| Camera | Nubia Red Magic 3S | Oppo A3s |
| Main camera | 48 MP | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | Dual color temperature LED | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 16 megapixel, Self-portrait beauty support | 8 MP, Single |
| Multimedia | Nubia Red Magic 3S | Oppo A3s |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio |
| Design | Nubia Red Magic 3S | Oppo A3s |
| Waterproof | No | |
| Colors | | Red, Dark Purple |
| Dimensions | 171.7 x 78.5 x 9.65 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 215 g | 168 g |
| Battery | Nubia Red Magic 3S | Oppo A3s |
| Capacity | 5000 mAh e-sports exclusive, 27W PD fast charge | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | Nubia Red Magic 3S | Oppo A3s |
| Release date | | 2018, July |
| Sensors | Light distance sensor, compass, gyroscope, fingerprint sensor, sensor-HUB, G-sensor | Accelerometer, proximity, compass |
