| Hardware and OS | Nubia M2 | Oppo A3s |
| Operating system | Android 6.0.1 (Marshmallow) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| RAM | 4GB | |
| GPU | Adreno 506 | Adreno 506 |
| Internal Storage | 64 GB, 128 GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Memory Card Slot | up to 200 GB | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| User Interface | Nubia UI 4.0 | |
| Display | Nubia M2 | Oppo A3s |
| Type | AMOLED self-luminous | IPS LCD |
| Size | 5.5 inches | 6.2" inc |
| Resolution | 1920 x 1080 pixels | 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) |
| Protection | Corning gorilla glass | |
| Pixel Density | 401 ppi | 271 PPI |
| Colors | 16 M | 16M |
| Connectivity | Nubia M2 | Oppo A3s |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| NFC | No | |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| SIM | Standard SIM | |
| 4G Network | | LTE |
| Wi-Fi | 802.11 b / g / n / ac wireless network | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | | GSM / HSPA / LTE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | | 4.2, A2DP, LE |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | A-GPS, GLONASS, Beidou | Yes, with A-GPS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | | microUSB 2.0, USB On-The-Go |
| Camera | Nubia M2 | Oppo A3s |
| Main camera | Dual 13 MP, 13 MP, F2.2 | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | dual tone LED | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 16 MP, F2.0, 80 degrees wide angle | 8 MP, Single |
| Multimedia | Nubia M2 | Oppo A3s |
| Loudspeaker | Yes | |
| Video Playback | MP4, 3GP, MOV, MKV, AVI, FLV, MPEG | |
| 3.5 mm Jack | yes | Yes |
| Radio | | FM radio |
| Design | Nubia M2 | Oppo A3s |
| Colors | | Red, Dark Purple |
| Dimensions | 154.5 x 75.9 x 7.0 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 168g | 168 g |
| Battery | Nubia M2 | Oppo A3s |
| Placement | Not removable | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | Nubia M2 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | Electronic compass, gravity sensing, light sensing, gyroscope,, Distance sensor Hall sensor | Accelerometer, proximity, compass |
