| Hardware and OS | LYF C451 | Oppo A3s |
| Operating system | Android OS, v6.0.1 (Marshmallow) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa Core, 1.3 GHz | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 304 | Adreno 506 |
| RAM | 1GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Internal Storage | 8GB | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory Card Slot | microSD Card | |
| Display | LYF C451 | Oppo A3s |
| Type | IPS LCD Capacitive Touchscreen display | IPS LCD |
| Size | 4.5 inches | 6.2" inc |
| Resolution | 480 x 854 pixels | 720 x 1520 px |
| Touchscreen | Yes, IPS LCD capacitive | 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 | LYF C451 | Oppo A3s |
| NFC | No | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| SIM | Micro SIM | |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| Dual SIM | Dual SIM /Micro SIM | |
| 4G Network | | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n | 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 | Yes, with GPS | Yes, with A-GPS |
| Speed | HSDPA, LTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | microUSB 2.0 | microUSB 2.0, USB On-The-Go |
| Camera | LYF C451 | Oppo A3s |
| Image | 480 x 854 pixels | |
| Main camera | 5MP Primary Camera | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | No | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 2 MP Front Camera | 8 MP, Single |
| Multimedia | LYF C451 | Oppo A3s |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio |
| Design | LYF C451 | Oppo A3s |
| Colors | | Red, Dark Purple |
| Dimensions | 139 x 66.5 x 9.8 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 165 g | 168 g |
| Battery | LYF C451 | Oppo A3s |
| Capacity | 2800 mAh | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | LYF C451 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
