| Hardware and OS | Oppo A31 (2015) | vivo Y11 |
| Operating system | Android 4.4 (KitKat) | Android 4.4.4 (KitKat) |
| Processor | Quad-core 1.2 GHz Cortex-A53 | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | Qualcomm MSM8916 Snapdragon 410 (28 nm) | Mediatek MT6582М |
| GPU | Adreno 306 | Mali-400MP2 |
| Internal memory | 8GB 1GB RAM | 4 GB, 512 MB RAM |
| External memory | microSDXC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Oppo A31 (2015) | vivo Y11 |
| Type | IPS LCD capacitive touchscreen, 16M colors | IPS LCD |
| Size | 4.5 inches, 55.8 cm2 | 4" inc |
| Resolution | 480 x 854 pixels, 16:9 ratio | 480 x 800 px |
| Touchscreen | | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Display area | | 45.5 cm2 |
| Display aspect ratio | | 5:3 (height:width) |
| Pixel Density | | 233 PPI |
| Colors | | 16M |
| Main Camera | Oppo A31 (2015) | vivo Y11 |
| Camera | 8 MP, AF | |
| Features | LED flash | |
| Video | 1080p@30fps | |
| Selfie camera | Oppo A31 (2015) | vivo Y11 |
| Camera | 5 MP | |
| Connectivity | Oppo A31 (2015) | vivo Y11 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| 3G Network | TD-SCDMA | |
| Network | | GSM / HSPA |
| 4G Network | LTE band 38(2600), 39(1900), 40(2300), 41(2500) | |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | 4.0, A2DP | 4.0, A2DP, EDR |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS | Yes, with A-GPS |
| Speed | TD-SCDMA, LTE Cat4 150/50 Mbps | HSPA 21.1/7.2 Mbps |
| Technology | GSM / LTE | |
| USB | microUSB 2.0 | microUSB 2.0, USB Host |
| WLAN | Wi-Fi 802.11 b/g/n | |
| Camera | Oppo A31 (2015) | vivo Y11 |
| Main camera | | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | | 2 MP, Single |
| Multimedia | Oppo A31 (2015) | vivo Y11 |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | Oppo A31 (2015) | vivo Y11 |
| Colors | White, Blue | White, Black |
| Dimensions | 131.9 x 65.5 x 8 mm (5.19 x 2.58 x 0.31 in) | 123 x 62.5 x 8.8 mm |
| Weight | 135 g (4.76 oz) | 124 g |
| SIM | Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by) | |
| Battery | Oppo A31 (2015) | vivo Y11 |
| Capacity | Non-removable Li-Ion 2000 mAh battery | |
| Stand-by | Up to 240 h | |
| Talk time | Up to 7 h | |
| Battery capacity | | 1700 mAh, Removable Li-Po |
| Battery life | | Talking time- Up to 11 h (2G) / Up to 8 h (3G)
Music play - Up to 34 h |
| Features | Oppo A31 (2015) | vivo Y11 |
| Sensors | Accelerometer, proximity | |
| Other | Oppo A31 (2015) | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
