| Hardware and OS | OPPO K9 Pro 5G | vivo Y11 |
| Operating system | Android v11 | Android 4.4.4 (KitKat) |
| Processor | Octa core (3 GHz, Single core, Cortex A78 2.6 GHz, Tri core, Cortex A78 2 GHz, Quad core, Cortex A55) | Quad-core 1.3 GHz Cortex-A7 |
| Custom UI | ColorOS | |
| Chipset | MediaTek Dimensity 1200 MT6893 | Mediatek MT6582М |
| GPU | Mali-G77 MC9 | Mali-400MP2 |
| Internal memory | 128 GB | 4 GB, 512 MB RAM |
| Architecture | 64 bit | |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| RAM | 8 GB | |
| Display | OPPO K9 Pro 5G | vivo Y11 |
| Type | AMOLED | IPS LCD |
| Size | 6.43 inches (16.33 cm) | 4" inc |
| Resolution | | 480 x 800 px |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Display area | | 45.5 cm2 |
| Screen format | 20:9 | |
| Display aspect ratio | | 5:3 (height:width) |
| Screen to body ratio | 91.7 % | |
| Pixel Density | | 233 PPI |
| PPI /points per inch/ | 409 ppi | |
| Colors | | 16M |
| Refresh Rate | 120 Hz | |
| Brightness | 800 nits | |
| Connectivity | OPPO K9 Pro 5G | vivo Y11 |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | Yes, Wi-Fi 802.11, ax/b/g/n/n 5GHz | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | | GSM / HSPA |
| 4G Bands | TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) | |
| SIM card | SIM1: Nano, SIM2: Nano | Dual SIM (Micro-SIM, dual stand-by) |
| Network Support | 5G, 4G, 3G, 2G | |
| Bluetooth | Yes, v5.1 | 4.0, A2DP, EDR |
| NFC | Yes | |
| Edge | | Yes |
| GPRS | | Yes |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| GPS | Yes with A-GPS, Glonass | Yes, with A-GPS |
| Speed | | HSPA 21.1/7.2 Mbps |
| USB | | microUSB 2.0, USB Host |
| USB Connectivity | Mass storage device, USB charging | |
| VoLTE | Yes | |
| Camera | OPPO K9 Pro 5G | vivo Y11 |
| Main camera | 64 MP f/1.7, Wide Angle (79?? field-of-view), Primary Camera, 8 MP f/2.2, Ultra-Wide Angle Camera, 2 MP f/2.4, Macro Camera, | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Camera Setup | Triple | |
| Selfie camera | 16 MP f/2.4, Wide Angle, Primary Camera, | 2 MP, Single |
| Autofocus | Yes | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Image Resolution | 9000 x 7000 Pixels | |
| Video Recording | 3840x2160 @ 30 fps, 1920x1080 @ 30 fps | |
| Multimedia | OPPO K9 Pro 5G | vivo Y11 |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Headphone jack | 3.5 mm | |
| Loudspeaker | Yes | |
| Design | OPPO K9 Pro 5G | vivo Y11 |
| Colors | | White, Black |
| Dimensions | | 123 x 62.5 x 8.8 mm |
| Weight | 180 grams | 124 g |
| Colours | Glacier Blue, Obsidian Black | |
| Width | 73.5 mm | |
| Height | 158.7 mm | |
| Thickness | 8.5 mm | |
| Battery | OPPO K9 Pro 5G | vivo Y11 |
| 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 |
| Capacity | 4500 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| Quick Charging | Yes, Super Flash, 60W: 50 % in 16 minutes | |
| USB Type-C | Yes | |
| Other | OPPO K9 Pro 5G | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
| Other features | OPPO K9 Pro 5G | vivo Y11 |
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | On-screen | |
| Fingerprint Sensor Type | Optical | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
