| vivo X3S |
Oppo A3s |
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| Hardware and OS | vivo X3S | Oppo A3s |
| Operating system | Android 4.2.2 (Jelly Bean) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core 1.7 GHz Cortex-A7 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Mediatek MT6592 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Mali-450MP4 | Adreno 506 |
| Internal memory | 16 GB, 1 GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | vivo X3S | Oppo A3s |
| Type | IPS LCD | IPS LCD |
| Size | 5" inc | 6.2" inc |
| Resolution | 720 x 1280 px | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 67.7% | 81.2% |
| Display area | 68.9 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 294 PPI | 271 PPI |
| Colors | 16M | 16M |
| Connectivity | vivo X3S | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / HSPA | GSM / HSPA / LTE |
| SIM card | Dual SIM (Micro-SIM/Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 4.0, A2DP, EDR | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS | Yes, with A-GPS |
| Speed | HSPA 21.1/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | microUSB 2.0, USB Host | microUSB 2.0, USB On-The-Go |
| Camera | vivo X3S | Oppo A3s |
| Main camera | 13 MP, Single | 13 MP, Dual |
| Specs | 13 MP, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | LED flash | LED flash, HDR, panorama |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | 0.3 MP, Single | 8 MP, Single |
| Multimedia | vivo X3S | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | vivo X3S | Oppo A3s |
| Colors | White, Blue | Red, Dark Purple |
| Dimensions | 143.3 x 71 x 6 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 150 g | 168 g |
| Battery | vivo X3S | Oppo A3s |
| Battery life | Stand by time- Up to 450 h (2G) / Up to 450 h (3G) Talking time- Up to 14 h (2G) / Up to 11 h (3G) Music play - Up to 30 h | |
| Battery capacity | 2000 mAh, Non-removable Li-Po | 4230 mAh, Non-removable Li-Ion |
| Other | vivo X3S | Oppo A3s |
| SAR | SAR - 0.46 W/kg (head), 1.05 W/kg (body), SAR EU - 0.35 W/kg (head), 0.69 W/kg (body) | |
| Release date | 2014 | 2018, July |
| Sensors | Accelerometer, gyro, proximity, compass , Infrared port | Accelerometer, proximity, compass |
