| Hardware and OS | Itel P51 | Oppo A3s |
| Operating system | Android 7.0 Nougat | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Processor clock: 1.30 GHz
| Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| RAM memory | 1 GB | |
| GPU | | Adreno 506 |
| Internal memory | 16 GB | 16 GB, 2 GB RAM |
| SIM cards standard | microSIM, microSIM | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory cards | yes
microSD, microSDHC, microSDXC (up to 32 GB) | |
| Display | Itel P51 | Oppo A3s |
| Type | | IPS LCD |
| Display | Color | |
| Size | | 6.2" inc |
| Display protection | yes | |
| Resolution | | 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 | | 271 PPI |
| Colors | | 16M |
| Connectivity | Itel P51 | Oppo A3s |
| NFC | yes | |
| WiFi | yes v802.11 b/g/n | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Hotspot WiFi | yes | |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| DLNA | yes | |
| 4G Network | | LTE |
| IrDA | yes | |
| Wi-Fi | | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| WAP | yes v2.0 | |
| Network | | GSM / HSPA / LTE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | yes v4.2 | 4.2, A2DP, LE |
| Edge | yes | Yes |
| GPRS | yes | Yes |
| GPS | yes | Yes, with A-GPS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | yes v2.0 OTG | microUSB 2.0, USB On-The-Go |
| Camera | Itel P51 | Oppo A3s |
| Flash | 2x LED | |
| Digital zoom | yes | |
| Additional | AF, f/2.0 | |
| Video formats | H.263, MPEG4 | |
| Main camera | 8 Mpx | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 2 Mpx | 8 MP, Single |
| Multimedia | Itel P51 | Oppo A3s |
| 3.5 mm Jack | | Yes |
| Radio | yes | FM radio |
| Design | Itel P51 | Oppo A3s |
| Colors | | Red, Dark Purple |
| Dimensions | | 156.2 x 75.6 x 8.2 mm |
| Weight | | 168 g |
| Battery | Itel P51 | Oppo A3s |
| Capacity | Li-Ion 5000 mAh | |
| Quick battery charging | yes | |
| Wireless battery charging | yes | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | Itel P51 | Oppo A3s |
| Accelerometer | yes | |
| Altimeter | yes | |
| Barometer | yes | |
| Fingerprint scanner | yes | |
| Gravity | yes | |
| Gyroscope | yes | |
| Release date | | 2018, July |
| Hall-effect | yes | |
| Sensors | | Accelerometer, proximity, compass |
| Hygrometer | yes | |
| Iris scanner | yes | |
| Magnetometer | yes | |
| Proximity | yes | |
| Thermometer | yes | |
