| Hardware and OS | Realme C20A | vivo Y11 |
| Operating system | Android 10, Realme UI | Android 4.4.4 (KitKat) |
| Processor | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | MediaTek MT6765G Helio G35 (12 nm) | Mediatek MT6582М |
| GPU | PowerVR GE8320 | Mali-400MP2 |
| Internal memory | 32GB 2GB RAM | 4 GB, 512 MB RAM |
| External memory | microSDXC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Realme C20A | vivo Y11 |
| Type | IPS LCD, 400 nits (typ) | IPS LCD |
| Size | 6.5 inches, 102.0 cm2 | 4" inc |
| Resolution | 720 x 1600 pixels, 20:9 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 | Realme C20A | vivo Y11 |
| Camera | 8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Realme C20A | vivo Y11 |
| Camera | 5 MP, f/2.2, (wide), 1/5.0", 1.12µm | |
| Features | HDR | |
| Video | 1080p@30fps | |
| Connectivity | Realme C20A | 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 |
| Network | | GSM / HSPA |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| Bluetooth | 5.0, A2DP | 4.0, A2DP, EDR |
| 4G Network | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 | |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS |
| NFC | No | |
| Speed | HSPA 42.2/5.76 Mbps, LTE | HSPA 21.1/7.2 Mbps |
| USB | microUSB 2.0, USB On-The-Go | microUSB 2.0, USB Host |
| Technology | GSM / HSPA / LTE | |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | |
| Camera | Realme C20A | vivo Y11 |
| Main camera | | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | | 2 MP, Single |
| Multimedia | Realme C20A | vivo Y11 |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Realme C20A | vivo Y11 |
| Body build | Glass front, plastic frame, plastic back | |
| Colors | Iron Grey, Lake Blue | White, Black |
| Body | Splash-resistant design | |
| Dimensions | 165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in) | 123 x 62.5 x 8.8 mm |
| Weight | 190 g (6.70 oz) | 124 g |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Battery | Realme C20A | vivo Y11 |
| Type | Li-Po 5000 mAh, non-removable | |
| Charging | Reverse charging | |
| 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 | Realme C20A | vivo Y11 |
| Sensors | Accelerometer, proximity, compass | |
| Other | Realme C20A | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
