| Hardware and OS | Karbonn K9 Smart Plus | vivo Y11 |
| Operating system | Android 8.1 Oreo | Android 4.4.4 (KitKat) |
| Processor | 1400 MHz, Cores: 4 | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | | Mediatek MT6582М |
| RAM | 3GB | |
| GPU | | Mali-400MP2 |
| Internal Storage | 32GB | |
| Internal memory | | 4 GB, 512 MB RAM |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| User Interface | Yes | |
| Display | Karbonn K9 Smart Plus | vivo Y11 |
| Type | IPS | IPS LCD |
| Size | | 4" inc |
| Resolution | 480 x 960 pixels | 480 x 800 px |
| Touchscreen | Yes | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Display area | | 45.5 cm2 |
| Protection | Full Lamination Technology | |
| Display aspect ratio | | 5:3 (height:width) |
| Features | Capacitive, Multi-touch | |
| Pixel Density | 197 ppi | 233 PPI |
| Colors | 16M | 16M |
| Connectivity | Karbonn K9 Smart Plus | vivo Y11 |
| 4G Network | Yes | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | b, g, n, Wi-Fi Hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| NFC | No | |
| Network | | GSM / HSPA |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | | 4.0, A2DP, EDR |
| SIM | Micro SIM | |
| Edge | | Yes |
| Wireless Charging | No | |
| GPRS | | Yes |
| GPS | GPS, A-GPS | Yes, with A-GPS |
| Speed | LTE 850 MHz LTE 1800 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) | HSPA 21.1/7.2 Mbps |
| USB | 2.0, Micro USB | microUSB 2.0, USB Host |
| Camera | Karbonn K9 Smart Plus | vivo Y11 |
| Image | 3264 x 2448 pixels | |
| Main camera | 7.99 MP (megapixels) | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | Dual LED | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | 7.99 MP (megapixels) | 2 MP, Single |
| Multimedia | Karbonn K9 Smart Plus | vivo Y11 |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio |
| Design | Karbonn K9 Smart Plus | vivo Y11 |
| Colors | | White, Black |
| Waterproof | No | |
| Dimensions | 71.5 x 147.6 x 9.35 mm | 123 x 62.5 x 8.8 mm |
| Weight | 144 g | 124 g |
| Battery | Karbonn K9 Smart Plus | vivo Y11 |
| Capacity | 2500 mAh, Li-Ion | |
| 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 |
| Other | Karbonn K9 Smart Plus | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | Proximity, Light, Accelerometer, Fingerprint | Accelerometer, proximity , Infrared port |
