| Hardware and OS | Xiaomi Redmi Note 9 | vivo Y11 |
| Operating system | Android v10 (Q) | Android 4.4.4 (KitKat) |
| Processor | Octa core (2 GHz, Dual core, Cortex A75 2 GHz, Hexa Core, Cortex A55) | Quad-core 1.3 GHz Cortex-A7 |
| Custom UI | MIUI | |
| Chipset | MediaTek Helio G85 | Mediatek MT6582М |
| GPU | | Mali-400MP2 |
| Internal memory | 64 GB | 4 GB, 512 MB RAM |
| Architecture | 64 bit | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| RAM | 4 GB | |
| Expandable Memory | yes Up to 512 GB | |
| Graphics | Mali-G52 | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Xiaomi Redmi Note 9 | vivo Y11 |
| Type | | IPS LCD |
| Size | | 4" inc |
| Resolution | | 480 x 800 px |
| Touchscreen | | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Screen Size | 6.53 inches (16.59 cm) | |
| Display area | | 45.5 cm2 |
| Screen Resolution | 1080 x 2340 pixels | |
| Display aspect ratio | | 5:3 (height:width) |
| Display Type | IPS LCD | |
| Pixel Density | 395 ppi | 233 PPI |
| Colors | | 16M |
| Aspect Ratio | 19.5:9 | |
| Refresh Rate | 60 Hz | |
| Screen Protection | Corning Gorilla Glass v5 | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Connectivity | Xiaomi Redmi Note 9 | vivo Y11 |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | yes Wi-Fi 802.11, a/b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | 4G: Available ,
3G: Available, 2G: Available | GSM / HSPA |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | yes v5.0 | 4.0, A2DP, EDR |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | yes with A-GPS, Glonass | Yes, with A-GPS |
| Speed | | HSPA 21.1/7.2 Mbps |
| USB | | microUSB 2.0, USB Host |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| VoLTE | yes | |
| Wi-Fi Calling | yes | |
| Wi-Fi Features | Wi-Fi Direct, Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging | |
| Main Camera | Xiaomi Redmi Note 9 | vivo Y11 |
| Resolution | 48 MP f/1.79 Primary Camera(2" sensor size, 0.8µm pixel size)8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera(4.0" sensor size)2 MP f/2.4, Macro Camera(1.75µm pixel size)2 MP f/2.4, Depth Camera(5.0" sensor size) | |
| Image Resolution | 8000 x 6000 Pixels | |
| Flash | yes LED Flash | |
| Sensor | ISOCELL Plus | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes Phase Detection autofocus | |
| Physical Aperture | F1.79 | |
| Video Recording | 3840x2160 @ 30 fps | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR), Burst mode | |
| Settings | Exposure compensation, ISO control | |
| Camera | Xiaomi Redmi Note 9 | vivo Y11 |
| Main camera | | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | | 2 MP, Single |
| Front Camera | Xiaomi Redmi Note 9 | vivo Y11 |
| Resolution | 13 MP f/2.25 Primary Camera(3" sensor size, 1.12µm pixel size) | |
| Physical Aperture | F2.25 | |
| Video Recording | 1920x1080 @ 30 fps | |
| Multimedia | Xiaomi Redmi Note 9 | vivo Y11 |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Audio Jack | 3.5 mm | |
| Loudspeaker | yes | |
| Design | Xiaomi Redmi Note 9 | vivo Y11 |
| Colors | | White, Black |
| Dimensions | | 123 x 62.5 x 8.8 mm |
| Weight | 200 grams | 124 g |
| Height | 161.4 mm | |
| Width | 76.7 mm | |
| Thickness | 8.7 mm | |
| Colours | Pebble Grey, Arctic White, Aqua Green | |
| Waterproof | yes Splash proof | |
| Battery | Xiaomi Redmi Note 9 | 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 |
| Type | Li-ion | |
| Capacity | 5020 mAh | |
| User Replaceable | No | |
| Quick Charging | yes Fast, 22.5W | |
| USB Type-C | yes | |
| USB OTG Support | yes | |
| Other | Xiaomi Redmi Note 9 | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
| Features | Xiaomi Redmi Note 9 | vivo Y11 |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
